Article(id=1241686769779929370, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241686759470329942, articleNumber=null, orderNo=null, doi=10.16579/j.issn.1001.9669.2025.09.005, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1751644800000, receivedDateStr=2025-07-05, revisedDate=1753027200000, revisedDateStr=2025-07-21, acceptedDate=null, acceptedDateStr=null, onlineDate=1773970795339, onlineDateStr=2026-03-20, pubDate=1757865600000, pubDateStr=2025-09-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773970795339, onlineIssueDateStr=2026-03-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773970795339, creator=13701087609, updateTime=1773970795339, updator=13701087609, issue=Issue{id=1241686759470329942, tenantId=1146029695717560320, journalId=1227999626482147330, year='2025', volume='47', issue='9', pageStart='1', pageEnd='249', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773970792882, creator=13701087609, updateTime=1773970911747, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241687258093375901, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241686759470329942, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241687258093375902, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241686759470329942, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=62, endPage=71, ext={EN=ArticleExt(id=1241686770048364846, articleId=1241686769779929370, tenantId=1146029695717560320, journalId=1227999626482147330, language=EN, title=Fatigue crack growth behavior and mechanism of aluminum alloy welded joints under overloads, columnId=null, journalTitle=Journal of Mechanical Strength, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Different parts of high-speed train bogies are usually designed with aluminum alloy materials of varying strengths, and welding is adopted to connect these different parts. When high-speed trains operate under complex road conditions, the bogies will be subjected to tensile overload, which will produce a coupled superposition effect with the strength difference of welded joints. Therefore, tensile overload tests were carried out on the welded structural components of bogies to study the fatigue crack growth behavior and intrinsic mechanism of aluminum alloy welded joints with different strengths under the action of tensile overload. The compliance method was used to measure the crack growth rate under tensile overload;the digital image correlation (DIC) technology was applied to analyze the change in the size of the plastic zone at the crack tip before and after the application of tensile overload; the scanning electron microscope (SEM) was employed to observe the fracture morphology characteristics of different aluminum alloys in the region affected by tensile overload. The crack growth behavior and intrinsic mechanism under tensile overload were explained based on the change in the size of the plastic zone at the crack tip and the corresponding fracture morphology characteristics. The results show that a single tensile overload can reduce the fatigue crack growth rate and extend the fatigue life. Further analysis indicates that during the tensile overload process, the plastic zone at the crack tip expands and the crack tip is blunted, which together lead to the reduction of the fatigue crack growth rate. The lower the material strength, the more severe the deformation at the crack tip and the more obvious the hysteresis effect under the same tensile overload. The test results of welded joints under tensile overload are consistent with those of the base metal, suggesting that the strength of the hysteresis effect depends only on the inherent strength of the material itself.
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高速列车转向架不同部位常采用不同强度铝合金材料进行设计,且采用焊接方式连接不同部件。当高速列车行驶在复杂路况时,转向架将承受拉伸过载作用,该拉伸过载会与焊接接头强度差异产生耦合叠加作用。因此,对转向架焊接结构件进行拉伸过载试验,研究拉伸过载作用下不同强度铝合金焊接接头的疲劳裂纹扩展行为和内在机制。采用柔度法测量拉伸过载作用下的裂纹扩展速率;用数字图像相关(Digital Image Correlation,DIC)技术分析了拉伸过载施加前后裂纹尖端塑性区的尺寸变化规律;采用扫描电子显微镜(Scanning Electron Microscope,SEM)观测了不同铝合金拉伸过载作用区域的断口形貌特征,用裂纹尖端塑性区尺寸变化和对应断口形貌特征解释了拉伸过载作用下的裂纹扩展行为和内在机制。结果表明,单次拉伸过载能降低疲劳裂纹扩展速率,延长疲劳寿命。分析结果表明,拉伸过载过程增大裂纹尖端塑性区,并钝化裂纹尖端,从而使疲劳裂纹扩展速率降低。材料强度越低,相同拉伸过载作用下,裂纹尖端变形越严重,迟滞效应越明显。焊接接头在拉伸过载作用下与母材试验结果保持一致,迟滞效应的强弱只取决于材料本身强度。
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, authorsList=徐连勇, 赵雷, 黄金超, 孙全伟, 梁文洲)}, authors=[Author(id=1241810803846877645, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=xulianyong@tju.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241810803985289686, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, authorId=1241810803846877645, language=EN, stringName=Lianyong XU, firstName=Lianyong, middleName=null, lastName=XU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, address=
1.School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
2.State Key Laboratory of High Performance Roll Materials and Composite Forming, Tianjin 300350, China
3.Tianjin Key Laboratory of Advanced Joining Technology, Tianjin 300350, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241810804161450465, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, authorId=1241810803846877645, language=CN, stringName=徐连勇, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, address=
1.天津大学 材料科学与工程学院,天津 300350
2.高性能轧辊材料与复合成形全国重点实验室,天津 300350
3.天津市现代连接技术重点实验室,天津 300350, bio={"content":"
徐连勇,男,1975年生,河北泊头人,博士,教授;主要研究方向为高性能制造与结构完整性评价;E-mail:xulianyong@tju.edu.cn。
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徐连勇,男,1975年生,河北泊头人,博士,教授;主要研究方向为高性能制造与结构完整性评价;E-mail:xulianyong@tju.edu.cn。
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2.高性能轧辊材料与复合成形全国重点实验室,天津 300350)]), AuthorCompany(id=1241810803477778859, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, xref=3., ext=[AuthorCompanyExt(id=1241810803481973165, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, companyId=1241810803477778859, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.Tianjin Key Laboratory of Advanced Joining Technology, Tianjin 300350, China), AuthorCompanyExt(id=1241810803490361773, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, companyId=1241810803477778859, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.天津市现代连接技术重点实验室,天津 300350)])]), Author(id=1241810804337611241, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=zhaolei85@tju.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241810804513772022, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, authorId=1241810804337611241, language=EN, stringName=Lei ZHAO, firstName=Lei, middleName=null, lastName=ZHAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, address=
1.School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
2.State Key Laboratory of High Performance Roll Materials and Composite Forming, Tianjin 300350, China
3.Tianjin Key Laboratory of Advanced Joining Technology, Tianjin 300350, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241810804635406846, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, authorId=1241810804337611241, language=CN, stringName=赵雷, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, address=
1.天津大学 材料科学与工程学院,天津 300350
2.高性能轧辊材料与复合成形全国重点实验室,天津 300350
3.天津市现代连接技术重点实验室,天津 300350, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241810803242897814, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, xref=1., ext=[AuthorCompanyExt(id=1241810803251286423, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, companyId=1241810803242897814, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China), AuthorCompanyExt(id=1241810803272257946, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, companyId=1241810803242897814, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.天津大学 材料科学与工程学院,天津 300350)]), AuthorCompany(id=1241810803372921250, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, xref=2., ext=[AuthorCompanyExt(id=1241810803377115555, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, companyId=1241810803372921250, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.State Key Laboratory of High Performance Roll Materials and Composite Forming, Tianjin 300350, China), AuthorCompanyExt(id=1241810803385504164, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, companyId=1241810803372921250, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.高性能轧辊材料与复合成形全国重点实验室,天津 300350)]), AuthorCompany(id=1241810803477778859, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, xref=3., ext=[AuthorCompanyExt(id=1241810803481973165, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, companyId=1241810803477778859, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.Tianjin Key Laboratory of Advanced Joining Technology, Tianjin 300350, China), AuthorCompanyExt(id=1241810803490361773, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, companyId=1241810803477778859, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.天津市现代连接技术重点实验室,天津 300350)])]), Author(id=1241810804715098631, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241810804878676503, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, authorId=1241810804715098631, language=EN, stringName=Jinchao HUANG, firstName=Jinchao, middleName=null, lastName=HUANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, address=
1.School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
2.State Key Laboratory of High Performance Roll Materials and Composite Forming, Tianjin 300350, China
3.Tianjin Key Laboratory of Advanced Joining Technology, Tianjin 300350, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241810804996117024, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, authorId=1241810804715098631, language=CN, stringName=黄金超, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, address=
1.天津大学 材料科学与工程学院,天津 300350
2.高性能轧辊材料与复合成形全国重点实验室,天津 300350
3.天津市现代连接技术重点实验室,天津 300350, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241810803242897814, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, xref=1., ext=[AuthorCompanyExt(id=1241810803251286423, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, companyId=1241810803242897814, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China), AuthorCompanyExt(id=1241810803272257946, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, companyId=1241810803242897814, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.天津大学 材料科学与工程学院,天津 300350)]), AuthorCompany(id=1241810803372921250, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, xref=2., ext=[AuthorCompanyExt(id=1241810803377115555, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, companyId=1241810803372921250, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.State Key Laboratory of High Performance Roll Materials and Composite Forming, Tianjin 300350, China), AuthorCompanyExt(id=1241810803385504164, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, companyId=1241810803372921250, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.高性能轧辊材料与复合成形全国重点实验室,天津 300350)]), AuthorCompany(id=1241810803477778859, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, xref=3., ext=[AuthorCompanyExt(id=1241810803481973165, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, companyId=1241810803477778859, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.Tianjin Key Laboratory of Advanced Joining Technology, Tianjin 300350, China), AuthorCompanyExt(id=1241810803490361773, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, companyId=1241810803477778859, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.天津市现代连接技术重点实验室,天津 300350)])]), Author(id=1241810805092586026, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241810805189055024, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, authorId=1241810805092586026, language=EN, stringName=Quanwei SUN, firstName=Quanwei, middleName=null, lastName=SUN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
4, address=
4.Nantong CIMC Energy Equipment Co., Ltd., Nantong 226000, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241810805281329715, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, authorId=1241810805092586026, language=CN, stringName=孙全伟, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
4, address=
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2015:1-49., articleTitle=null, refAbstract=null), Reference(id=1241810814030647318, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, doi=null, pmid=null, pmcid=null, year=2021, volume=114, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[23], rfOrder=27, authorNames=GONZÁLES G L G, GONZÁLEZ J A O, FREIRE J L F, journalName=Theoretical and Applied Fracture Mechanics, refType=null, unstructuredReference=
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114:103028., articleTitle=Characterization of discontinuous crack closure behavior after the application of a single overload cycle, refAbstract=null), Reference(id=1241810814118727707, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, doi=null, pmid=null, pmcid=null, year=2023, volume=175, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=[24], rfOrder=28, authorNames=SU M L, HU C C, XU L Y, journalName=International Journal of Fatigue, refType=null, unstructuredReference=
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175:107772., articleTitle=Fatigue short crack growth:overload-induced acceleration/retardation behavior, refAbstract=null)], funds=[Fund(id=1241810811182715774, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, awardId=52025052, language=EN, fundingSource=National Natural Science Foundation of China(52025052), fundOrder=null, country=null), Fund(id=1241810811283379077, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, awardId=52025052, language=CN, fundingSource=国家自然科学基金项目(52025052), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1241810803242897814, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, xref=1., ext=[AuthorCompanyExt(id=1241810803251286423, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, companyId=1241810803242897814, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Diagram of specimen size and sampling location, figureFileSmall=YWVAFRLzZ9XQJWs5l67y5w==, figureFileBig=otWExTnpKQpF2Otan7mwTg==, tableContent=null), ArticleFig(id=1241810807072297618, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=图1, caption=
试样尺寸及取样位置示意图, figureFileSmall=YWVAFRLzZ9XQJWs5l67y5w==, figureFileBig=otWExTnpKQpF2Otan7mwTg==, tableContent=null), ArticleFig(id=1241810807210709658, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Fig.2, caption=
Schematic diagram of the tensile overload, figureFileSmall=dOLNb697tF5kdgvfsjusuQ==, figureFileBig=G+73Cbjm4/ss77cMThLGtg==, tableContent=null), ArticleFig(id=1241810807323955876, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=图2, caption=
拉伸过载示意图, figureFileSmall=dOLNb697tF5kdgvfsjusuQ==, figureFileBig=G+73Cbjm4/ss77cMThLGtg==, tableContent=null), ArticleFig(id=1241810807416230569, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Fig.3, caption=
Single tensile overload curves (5052-H32 base material), figureFileSmall=TPYtSirbaeireCYDEEc5ow==, figureFileBig=wJf9hk7/aw8hjiWvATOrqA==, tableContent=null), ArticleFig(id=1241810807491728048, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=图3, caption=
单次拉伸过载曲线(5052-H32母材), figureFileSmall=TPYtSirbaeireCYDEEc5ow==, figureFileBig=wJf9hk7/aw8hjiWvATOrqA==, tableContent=null), ArticleFig(id=1241810807584002743, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Fig.4, caption=
Single tensile overload curves (6061-T6 base material), figureFileSmall=SN1wk79bMaBNxnTyiiapSA==, figureFileBig=qYTpBzEMv2YA9FVYf7CR/w==, tableContent=null), ArticleFig(id=1241810807697248960, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=图4, caption=
单次拉伸过载曲线(6061-T6母材), figureFileSmall=SN1wk79bMaBNxnTyiiapSA==, figureFileBig=qYTpBzEMv2YA9FVYf7CR/w==, tableContent=null), ArticleFig(id=1241810807802106568, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Fig.5, caption=
Single tensile overload curves (YL112 base material), figureFileSmall=P82qXAQ5kRpV6a8BQLvBDA==, figureFileBig=gM0YD6rbnD0LF1CAN2HNYQ==, tableContent=null), ArticleFig(id=1241810807906964177, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=图5, caption=
单次拉伸过载曲线(YL112母材), figureFileSmall=P82qXAQ5kRpV6a8BQLvBDA==, figureFileBig=gM0YD6rbnD0LF1CAN2HNYQ==, tableContent=null), ArticleFig(id=1241810808016016088, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Fig.6, caption=
Single tensile overload curves (5052-H32/6061-T6 welded joint), figureFileSmall=mD+uKUYygVDmWY2Dev3r1w==, figureFileBig=gQNMhaH7raFNLAlv1bo/VQ==, tableContent=null), ArticleFig(id=1241810808125067996, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=图6, caption=
单次拉伸过载曲线(5052-H32/6061-T6焊接接头), figureFileSmall=mD+uKUYygVDmWY2Dev3r1w==, figureFileBig=gQNMhaH7raFNLAlv1bo/VQ==, tableContent=null), ArticleFig(id=1241810808217342689, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Fig. 7, caption=
Single tensile overload curves (6061-T6/YL112 welded joint), figureFileSmall=k5pyiGfLBzcGfo30HG+1DA==, figureFileBig=7GxSSooVY7iWZAcKTfNLTw==, tableContent=null), ArticleFig(id=1241810808288645861, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=图7, caption=
单次拉伸过载曲线(6061-T6/YL112焊接接头), figureFileSmall=k5pyiGfLBzcGfo30HG+1DA==, figureFileBig=7GxSSooVY7iWZAcKTfNLTw==, tableContent=null), ArticleFig(id=1241810808364143338, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Fig.8, caption=
Comparison of hysteresis effect, figureFileSmall=hBOSlEroxzASbYmWiTWVkA==, figureFileBig=NCduarJVySs39hy5498SNw==, tableContent=null), ArticleFig(id=1241810808464806639, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=图8, caption=
迟滞效应对比, figureFileSmall=hBOSlEroxzASbYmWiTWVkA==, figureFileBig=NCduarJVySs39hy5498SNw==, tableContent=null), ArticleFig(id=1241810808582247153, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Fig.9, caption=
DIC analysis diagram (OL-3), figureFileSmall=oG9nXqDG+dvai1t8qnHYlg==, figureFileBig=pC+a9K4VzBwWxucU2mlLLQ==, tableContent=null), ArticleFig(id=1241810808716464890, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=图9, caption=
DIC分析图(OL-3), figureFileSmall=oG9nXqDG+dvai1t8qnHYlg==, figureFileBig=pC+a9K4VzBwWxucU2mlLLQ==, tableContent=null), ArticleFig(id=1241810808808739584, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Fig.10, caption=
SEM fracture analysis morphology, figureFileSmall=PZLoTlKUtsNNd9aMh/Q7JQ==, figureFileBig=vCpklDe4zM5PJVCcyFwhOg==, tableContent=null), ArticleFig(id=1241810808930374407, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=图10, caption=
SEM断口分析图, figureFileSmall=PZLoTlKUtsNNd9aMh/Q7JQ==, figureFileBig=vCpklDe4zM5PJVCcyFwhOg==, tableContent=null), ArticleFig(id=1241810809060397841, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Tab.1, caption=
Chemical composition of aluminum alloys
, figureFileSmall=null, figureFileBig=null, tableContent=
材料 Material | 质量分数Mass fraction/% |
|---|
| Mg | Si | Cu | Zn | Mn | Fe | Cr | Ti | Al |
|---|
| 5052-H32 | 2.2 | 0.25 | 0.1 | 0.25 | 0.3 | 0.4 | 0.15 | 0.15 | 余量 Balance |
| 6061-T6 | 0.8 | 0.4 | 0.15 | 0.25 | 0.15 | 0.7 | 0.04 | 0.15 | 余量 Balance |
| YL112 | 0.1 | 7.5 | 3.0 | 2.9 | 0.5 | 0.1 | 0.1 | 0.15 | 余量 Balance |
), ArticleFig(id=1241810809186226965, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=表1, caption=
铝合金的化学成分
, figureFileSmall=null, figureFileBig=null, tableContent=
材料 Material | 质量分数Mass fraction/% |
|---|
| Mg | Si | Cu | Zn | Mn | Fe | Cr | Ti | Al |
|---|
| 5052-H32 | 2.2 | 0.25 | 0.1 | 0.25 | 0.3 | 0.4 | 0.15 | 0.15 | 余量 Balance |
| 6061-T6 | 0.8 | 0.4 | 0.15 | 0.25 | 0.15 | 0.7 | 0.04 | 0.15 | 余量 Balance |
| YL112 | 0.1 | 7.5 | 3.0 | 2.9 | 0.5 | 0.1 | 0.1 | 0.15 | 余量 Balance |
), ArticleFig(id=1241810809324639002, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Tab.2, caption=
Mechanical properties of aluminum alloys
, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料Material | 屈服强度 Yield strength/MPa | 抗拉强度 Tensile strength/MPa | 弹性模量 Elastic modulus/MPa |
|---|
| 5052-H32 | 83 | 184 | 75 |
| 6061-T6 | 263 | 296 | 73 |
| YL112 | 282 | 306 | 78 |
5052-H32/6061-T6焊缝 5052-H32/6061-T6 weld seam | 100 | 150 | 74 |
6061-T6/ YL112焊缝 6061-T6/ YL112 weld seam | 130 | 175 | 76 |
), ArticleFig(id=1241810809408525086, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=表2, caption=
铝合金力学性能
, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料Material | 屈服强度 Yield strength/MPa | 抗拉强度 Tensile strength/MPa | 弹性模量 Elastic modulus/MPa |
|---|
| 5052-H32 | 83 | 184 | 75 |
| 6061-T6 | 263 | 296 | 73 |
| YL112 | 282 | 306 | 78 |
5052-H32/6061-T6焊缝 5052-H32/6061-T6 weld seam | 100 | 150 | 74 |
6061-T6/ YL112焊缝 6061-T6/ YL112 weld seam | 130 | 175 | 76 |
), ArticleFig(id=1241810809509188388, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Tab.3, caption=
Fatigue crack growth test parameters of the aluminum alloy
, figureFileSmall=null, figureFileBig=null, tableContent=
试样编号 Sample number | R | ROL | Pmax,BL/kN | Pmin,BL/kN | Pmax,OL/kN |
|---|
| CAL-1 | 0.1 | — | 1.5 | 0.15 | — |
| OL-1 | 0.1 | 1.25 | 1.5 | 0.15 | 1.875 |
| OL-2 | 0.1 | 1.50 | 1.5 | 0.15 | 2.250 |
| OL-3 | 0.1 | 1.75 | 1.5 | 0.15 | 2.625 |
), ArticleFig(id=1241810809618240301, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=表3, caption=
铝合金疲劳裂纹扩展试验参数
, figureFileSmall=null, figureFileBig=null, tableContent=
试样编号 Sample number | R | ROL | Pmax,BL/kN | Pmin,BL/kN | Pmax,OL/kN |
|---|
| CAL-1 | 0.1 | — | 1.5 | 0.15 | — |
| OL-1 | 0.1 | 1.25 | 1.5 | 0.15 | 1.875 |
| OL-2 | 0.1 | 1.50 | 1.5 | 0.15 | 2.250 |
| OL-3 | 0.1 | 1.75 | 1.5 | 0.15 | 2.625 |
), ArticleFig(id=1241810809744069428, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Tab.4, caption=
Representative parameters of the fatigue crack growth under single tensile overload for 5052-H32 base material
, figureFileSmall=null, figureFileBig=null, tableContent=
试样编号 Sample number | R | ROL | Pmax,OL/kN | (da/dN)bef/(mm/cycle) | (da/dN)min,OL/(mm/cycle) | δda/dN | NOL/cycle | are/mm |
|---|
| CAL-1 | 0.1 | — | — | 1.36×10-4 | — | — | 21 715 | — |
| OL-1 | 0.1 | 1.25 | 1.875 | 1.51×10-4 | 6.68×10-6 | 0.044 | 39 320 | 1.23 |
| OL-2 | 0.1 | 1.50 | 2.250 | 1.43×10-4 | 3.42×10-6 | 0.024 | 44 263 | 3.95 |
| OL-3 | 0.1 | 1.75 | 2.625 | 1.45×10-4 | 7.91×10-7 | 0.005 | 96 684 | 5.36 |
), ArticleFig(id=1241810809840538427, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=表4, caption=
5052-H32母材单次拉伸过载下疲劳裂纹扩展代表参数
, figureFileSmall=null, figureFileBig=null, tableContent=
试样编号 Sample number | R | ROL | Pmax,OL/kN | (da/dN)bef/(mm/cycle) | (da/dN)min,OL/(mm/cycle) | δda/dN | NOL/cycle | are/mm |
|---|
| CAL-1 | 0.1 | — | — | 1.36×10-4 | — | — | 21 715 | — |
| OL-1 | 0.1 | 1.25 | 1.875 | 1.51×10-4 | 6.68×10-6 | 0.044 | 39 320 | 1.23 |
| OL-2 | 0.1 | 1.50 | 2.250 | 1.43×10-4 | 3.42×10-6 | 0.024 | 44 263 | 3.95 |
| OL-3 | 0.1 | 1.75 | 2.625 | 1.45×10-4 | 7.91×10-7 | 0.005 | 96 684 | 5.36 |
), ArticleFig(id=1241810809962173250, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Tab.5, caption=
Representative parameters of the fatigue crack growth under single tensile overload for 6061-T6 base material
, figureFileSmall=null, figureFileBig=null, tableContent=
试样编号 Sample number | R | ROL | Pmax,OL/kN | (da/dN)bef/(mm/cycle) | (da/dN)min,OL/(mm/cycle) | δda/dN | NOL/cycle | are/mm |
|---|
| CAL-1 | 0.1 | — | — | 1.67×10-4 | — | — | 20 544 | — |
| OL-1 | 0.1 | 1.25 | 1.875 | 1.63×10-4 | 5.02×10-5 | 0.308 | 23 245 | 0.51 |
| OL-2 | 0.1 | 1.50 | 2.250 | 1.64×10-4 | 1.63×10-5 | 0.099 | 23 412 | 0.61 |
| OL-3 | 0.1 | 1.75 | 2.625 | 1.68×10-4 | 4.99×10-6 | 0.030 | 26 794 | 0.91 |
), ArticleFig(id=1241810810067030857, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=表5, caption=
单次拉伸过载下6061-T6母材疲劳裂纹扩展典型参数
, figureFileSmall=null, figureFileBig=null, tableContent=
试样编号 Sample number | R | ROL | Pmax,OL/kN | (da/dN)bef/(mm/cycle) | (da/dN)min,OL/(mm/cycle) | δda/dN | NOL/cycle | are/mm |
|---|
| CAL-1 | 0.1 | — | — | 1.67×10-4 | — | — | 20 544 | — |
| OL-1 | 0.1 | 1.25 | 1.875 | 1.63×10-4 | 5.02×10-5 | 0.308 | 23 245 | 0.51 |
| OL-2 | 0.1 | 1.50 | 2.250 | 1.64×10-4 | 1.63×10-5 | 0.099 | 23 412 | 0.61 |
| OL-3 | 0.1 | 1.75 | 2.625 | 1.68×10-4 | 4.99×10-6 | 0.030 | 26 794 | 0.91 |
), ArticleFig(id=1241810810159305553, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Tab.6, caption=
Representative parameters of the fatigue crack growth under single tensile overload for YL112 base material
, figureFileSmall=null, figureFileBig=null, tableContent=
试样编号 Sample number | R | ROL | Pmax,OL/kN | (da/dN)bef/(mm/cycle) | (da/dN)min,OL/(mm/cycle) | δda/dN | NOL/cycle | are/mm |
|---|
| CAL-1 | 0.1 | — | — | 1.53×10-4 | — | — | 21 401 | — |
| OL-1 | 0.1 | 1.25 | 1.875 | 1.63×10-4 | 4.91×10-5 | 0.301 | 23 283 | 0.45 |
| OL-2 | 0.1 | 1.50 | 2.250 | 1.53×10-4 | 2.47×10-5 | 0.161 | 24 393 | 0.56 |
| OL-3 | 0.1 | 1.75 | 2.625 | 1.53×10-4 | 7.73×10-6 | 0.051 | 26 768 | 0.84 |
), ArticleFig(id=1241810810289328983, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=表6, caption=
YL112母材单次拉伸过载下疲劳裂纹扩展代表参数
, figureFileSmall=null, figureFileBig=null, tableContent=
试样编号 Sample number | R | ROL | Pmax,OL/kN | (da/dN)bef/(mm/cycle) | (da/dN)min,OL/(mm/cycle) | δda/dN | NOL/cycle | are/mm |
|---|
| CAL-1 | 0.1 | — | — | 1.53×10-4 | — | — | 21 401 | — |
| OL-1 | 0.1 | 1.25 | 1.875 | 1.63×10-4 | 4.91×10-5 | 0.301 | 23 283 | 0.45 |
| OL-2 | 0.1 | 1.50 | 2.250 | 1.53×10-4 | 2.47×10-5 | 0.161 | 24 393 | 0.56 |
| OL-3 | 0.1 | 1.75 | 2.625 | 1.53×10-4 | 7.73×10-6 | 0.051 | 26 768 | 0.84 |
), ArticleFig(id=1241810810406769498, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Tab.7, caption=
Representative parameters of the fatigue crack growth under single tensile overload for 5052-H32/6061-T6 welds
, figureFileSmall=null, figureFileBig=null, tableContent=
试样编号 Sample number | R | ROL | Pmax,OL/kN | (da/dN)bef/(mm/cycle) | (da/dN)min,OL/(mm/cycle) | δda/dN | NOL/cycle | are/mm |
|---|
| CAL-1 | 0.1 | — | — | 1.34×10-4 | — | — | 25 967 | — |
| OL-1 | 0.1 | 1.25 | 1.875 | 1.53×10-4 | 8.14×10-6 | 0.053 | 36 672 | 1.06 |
| OL-2 | 0.1 | 1.50 | 2.250 | 1.37×10-4 | 4.92×10-6 | 0.036 | 43 849 | 3.07 |
| OL-3 | 0.1 | 1.75 | 2.625 | 1.33×10-4 | 9.52×10-7 | 0.007 | 81 529 | 5.01 |
), ArticleFig(id=1241810810503238498, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=表7, caption=
5052-H32/6061-T6焊缝单次拉伸过载下疲劳裂纹扩展代表参数
, figureFileSmall=null, figureFileBig=null, tableContent=
试样编号 Sample number | R | ROL | Pmax,OL/kN | (da/dN)bef/(mm/cycle) | (da/dN)min,OL/(mm/cycle) | δda/dN | NOL/cycle | are/mm |
|---|
| CAL-1 | 0.1 | — | — | 1.34×10-4 | — | — | 25 967 | — |
| OL-1 | 0.1 | 1.25 | 1.875 | 1.53×10-4 | 8.14×10-6 | 0.053 | 36 672 | 1.06 |
| OL-2 | 0.1 | 1.50 | 2.250 | 1.37×10-4 | 4.92×10-6 | 0.036 | 43 849 | 3.07 |
| OL-3 | 0.1 | 1.75 | 2.625 | 1.33×10-4 | 9.52×10-7 | 0.007 | 81 529 | 5.01 |
), ArticleFig(id=1241810810629067624, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Tab.8, caption=
Representative parameters of the fatigue crack growth under single tensile overload for 6061-T6/YL112 welds
, figureFileSmall=null, figureFileBig=null, tableContent=
试样编号 Sample number | R | ROL | Pmax,OL/kN | (da/dN)bef/(mm/cycle) | (da/dN)min,OL/(mm/cycle) | δda/dN | NOL/cycle | are/mm |
|---|
| CAL-1 | 0.1 | — | — | 1.28×10-4 | — | — | 32 819 | — |
| OL-1 | 0.1 | 1.25 | 1.875 | 1.54×10-4 | 8.72×10-6 | 0.057 | 39 300 | 0.76 |
| OL-2 | 0.1 | 1.50 | 2.250 | 1.19×10-4 | 5.45×10-6 | 0.046 | 52 203 | 2.31 |
| OL-3 | 0.1 | 1.75 | 2.625 | 1.21×10-4 | 1.27×10-6 | 0.011 | 78 001 | 4.46 |
), ArticleFig(id=1241810810780062574, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=表8, caption=
6061-T6/YL112焊缝单次拉伸过载下疲劳裂纹扩展代表参数
, figureFileSmall=null, figureFileBig=null, tableContent=
试样编号 Sample number | R | ROL | Pmax,OL/kN | (da/dN)bef/(mm/cycle) | (da/dN)min,OL/(mm/cycle) | δda/dN | NOL/cycle | are/mm |
|---|
| CAL-1 | 0.1 | — | — | 1.28×10-4 | — | — | 32 819 | — |
| OL-1 | 0.1 | 1.25 | 1.875 | 1.54×10-4 | 8.72×10-6 | 0.057 | 39 300 | 0.76 |
| OL-2 | 0.1 | 1.50 | 2.250 | 1.19×10-4 | 5.45×10-6 | 0.046 | 52 203 | 2.31 |
| OL-3 | 0.1 | 1.75 | 2.625 | 1.21×10-4 | 1.27×10-6 | 0.011 | 78 001 | 4.46 |
), ArticleFig(id=1241810810876531570, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=EN, label=Tab.9, caption=
Dimensions of the plastic zone at the crack tip
, figureFileSmall=null, figureFileBig=null, tableContent=
材料 Material | PA/mm2 | PB/mm2 | PC/mm2 | PAB | PBC | PAC |
|---|
| 5052-H32 | 3.856 | 53.406 | 45.347 | 13.85 | 0.85 | 11.76 |
| 6061-T6 | 0.573 | 1.890 | 1.672 | 3.30 | 0.88 | 2.92 |
| YL112 | 0.561 | 1.628 | 1.435 | 2.90 | 0.88 | 2.56 |
), ArticleFig(id=1241810810977194871, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241686769779929370, language=CN, label=表9, caption=
裂纹尖端塑性区尺寸
, figureFileSmall=null, figureFileBig=null, tableContent=
材料 Material | PA/mm2 | PB/mm2 | PC/mm2 | PAB | PBC | PAC |
|---|
| 5052-H32 | 3.856 | 53.406 | 45.347 | 13.85 | 0.85 | 11.76 |
| 6061-T6 | 0.573 | 1.890 | 1.672 | 3.30 | 0.88 | 2.92 |
| YL112 | 0.561 | 1.628 | 1.435 | 2.90 | 0.88 | 2.56 |
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