Article(id=1281324037242589682, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1281323885077447100, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1007-7294.2026.02.009, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1750176000000, receivedDateStr=2025-06-18, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1783421056328, onlineDateStr=2026-07-07, pubDate=1771084800000, pubDateStr=2026-02-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1783421056328, onlineIssueDateStr=2026-07-07, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1783421056328, creator=13701087609, updateTime=1783421056328, updator=13701087609, issue=Issue{id=1281323885077447100, tenantId=1146029695717560320, journalId=1240685776644648972, year='2026', volume='30', issue='2', pageStart='177', pageEnd='340', issueExtLink='null', onlineDate='null', pubDate='1771084800000', pubDateStr='2026-02-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1783421020049, creator='13701087609', updateTime=1783422086911, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1281328359892303896, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1281323885077447100, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1281328359892303897, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1281323885077447100, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=282, endPage=294, ext={EN=ArticleExt(id=1281324039415239161, articleId=1281324037242589682, tenantId=1146029695717560320, journalId=1240685776644648972, language=EN, title=Theoretical and experimental study on the bending performance of reinforced thermoplastic flexible composite pipes, columnId=1242129251223274417, journalTitle=Journal of Ship Mechanics, columnName=Structural Mechanics, runingTitle=null, highlight=null, articleAbstract=
The accurate prediction of bending stiffness and damage mode is important for understanding the bending mechanical behavior of reinforced thermoplastic pipe (RTP). Presently, adopting two-dimensional theoretical models, or simplifing three-dimensional stress state based on Lekhnitskii stress function, are the two main common approaches to analyse the bending performance of composite flexible pipes. The methods above, however are, difficult to accurately predict the stress distribution of each layer and the initial damage critical point of RTP under bending conditions. This paper firstly conducted geometric analysis of the section shape of RTP under bending conditions, and established a parametric representation method based on geometric analysis for the section deformation of each layer. Considering the nonlinear stiffness degradation of the material, a three-dimensional constitutive relationship of RTP was established. Then, combined with the virtual work principle, an analysis model for the bending mechanical properties of RTP was established. Further, the four-point bending test was carried out to verify the rationality of the theoretical model, and the influence of initial ovality and winding angle on the bending stiffness of RTP was analyzed. The results show good agreement between experimental data and theoretical model calculations. The bending stiffness of RTP is mainly affected by the winding angle and slightly affected by the initial ovality.
, authors=Chen ZHANG
1a, Min LOU
1b, Yang-yang WANG
1b, Lei WANG
2, Bin WU
1a, 3, Yu-xuan SHAO
1b, authorsList=Chen ZHANG, Min LOU, Yang-yang WANG, Lei WANG, Bin WU, Yu-xuan SHAO, authorCompany=null, correspAuthors=Min LOU, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2026 Journal of Ship Mechanics. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1281324059015221863, articleId=1281324037242589682, tenantId=1146029695717560320, journalId=1240685776644648972, language=CN, title=热塑性增强柔性复合管道弯曲性能的理论和实验研究, columnId=1241023038926410098, journalTitle=船舶力学, columnName=结构力学, runingTitle=null, highlight=null, articleAbstract=
准确的弯曲刚度和损伤模式预测对于深入了解热塑性增强柔性管道(RTP)的弯曲力学行为具有重要意义。目前,复合材料柔性管弯曲分析模型多采用二维理论模型或基于Lekhnitskii应力函数对其三维应力状态进行简化,难以精确预测RTP在弯曲工况下各层的应力分布及初始损伤临界点。本文首先针对RTP在弯曲工况下的截面形状进行几何分析,据此建立了各层截面变形的参数化表征方法,同时考虑材料的非线性刚度退化建立了RTP的三维本构关系,结合虚功原理构建了RTP弯曲力学性能分析模型。通过四点弯曲试验验证理论模型的合理性,并分析了初始椭圆度及缠绕角度对RTP弯曲刚度的影响规律。结果表明,实验结果与理论模型计算结果吻合度较高,RTP的弯曲刚度主要受缠绕角度的影响,初始椭圆度的影响较小。
, authors=张晨
1a, 娄敏
1b, 王阳阳
1b, 王磊
2, 吴斌
1a, 3, 邵雨轩
1b, authorsList=张晨, 娄敏, 王阳阳, 王磊, 吴斌, 邵雨轩, authorCompany=null, correspAuthors=娄敏, authorNote=
, correspAuthorsNote=
, copyrightStatement=版权所有©《船舶力学》编辑部2026, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=B4iM94a8jJMEnfZWzVWc1w==, magXml=UJ1Z3gsA530b5Xr4K+5cIg==, pdfUrl=null, pdf=YioUWWohBZylWXEkib+apA==, pdfFileSize=2114538, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=ndBX/cuMbdFZJUiE6/1C+g==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=hHQGiDVHig2j4eaacNG11A==, mapNumber=null, fund=null)}, authors=[Author(id=1281324060680360565, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, orderNo=0, 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=1281324062072869495, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, authorId=1281324060680360565, language=EN, stringName=Chen ZHANG, firstName=Chen, middleName=null, lastName=ZHANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1a, address=
1a.China University of Petroleum (East China) School of Petroleum Engineering, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1281324062446162552, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, authorId=1281324060680360565, language=CN, stringName=张晨, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1a, address=
1a.中国石油大学(华东) 石油工程学院, bio={"content":"
张 晨(1999–),男,博士研究生
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张 晨(1999–),男,博士研究生
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1a.China University of Petroleum (East China) School of Petroleum Engineering), AuthorCompanyExt(id=1281324059568869994, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, companyId=1281324059552092776, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1a.中国石油大学(华东) 石油工程学院)])]), Author(id=1281324062538437242, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=shidaloumin@163.com, emailSecond=null, emailThird=null, correspondingAuthor=1, authorType=1, ext={EN=AuthorExt(id=1281324062790095484, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, authorId=1281324062538437242, language=EN, stringName=Min LOU, firstName=Min, middleName=null, lastName=LOU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1b, address=
1b.China University of Petroleum (East China) College of Mechanical and Electronic Engineering, China University of Petroleum (East China), Qingdao 266580, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1281324062861398653, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, authorId=1281324062538437242, language=CN, stringName=娄敏, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1b, address=
1b.中国石油大学(华东) 机电工程学院,山东 青岛 266580, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1281324059849888363, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, xref=1b., ext=[AuthorCompanyExt(id=1281324059858276972, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, companyId=1281324059849888363, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1b.China University of Petroleum (East China) College of Mechanical and Electronic Engineering, China University of Petroleum (East China), Qingdao 266580, China), AuthorCompanyExt(id=1281324059866665581, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, companyId=1281324059849888363, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1b.中国石油大学(华东) 机电工程学院,山东 青岛 266580)])]), Author(id=1281324063217914495, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, 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=1281324063305994881, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, authorId=1281324063217914495, language=EN, stringName=Yang-yang WANG, firstName=Yang-yang, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1b, address=
1b.China University of Petroleum (East China) College of Mechanical and Electronic Engineering, China University of Petroleum (East China), Qingdao 266580, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1281324063389880962, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, authorId=1281324063217914495, language=CN, stringName=王阳阳, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1b, address=
1b.中国石油大学(华东) 机电工程学院,山东 青岛 266580, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1281324059849888363, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, xref=1b., ext=[AuthorCompanyExt(id=1281324059858276972, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, companyId=1281324059849888363, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1b.China University of Petroleum (East China) College of Mechanical and Electronic Engineering, China University of Petroleum (East China), Qingdao 266580, China), AuthorCompanyExt(id=1281324059866665581, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, companyId=1281324059849888363, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1b.中国石油大学(华东) 机电工程学院,山东 青岛 266580)])]), Author(id=1281324063742202500, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, 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=1281324064472011399, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, authorId=1281324063742202500, language=EN, stringName=Lei WANG, firstName=Lei, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2.Zoomlion Heavy Industry Science & Technology Co., Ltd., Changsha 410013, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1281324064547508873, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, authorId=1281324063742202500, language=CN, stringName=王磊, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, address=
2中联重科股份有限公司,长沙 410013, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1281324059937968750, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, xref=2., ext=[AuthorCompanyExt(id=1281324059958940271, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, companyId=1281324059937968750, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Zoomlion Heavy Industry Science & Technology Co., Ltd., Changsha 410013, China), AuthorCompanyExt(id=1281324060248347248, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, companyId=1281324059937968750, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2中联重科股份有限公司,长沙 410013)])]), Author(id=1281324064883053196, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, orderNo=4, 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=1281324066569163407, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, authorId=1281324064883053196, language=EN, stringName=Bin WU, firstName=Bin, middleName=null, lastName=WU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1a, 3, address=
1a.China University of Petroleum (East China) School of Petroleum Engineering
3.Tianjin Branch of CNOOC (China) Co., Ltd., Tianjin 300452, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1281324066665632400, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, authorId=1281324064883053196, language=CN, stringName=吴斌, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1a, 3, address=
1a.中国石油大学(华东) 石油工程学院
3.中海石油(中国)有限公司天津分公司,天津 300452, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1281324059552092776, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, xref=1a., ext=[AuthorCompanyExt(id=1281324059560481385, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, companyId=1281324059552092776, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1a.China University of Petroleum (East China) School of Petroleum Engineering), AuthorCompanyExt(id=1281324059568869994, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, companyId=1281324059552092776, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1a.中国石油大学(华东) 石油工程学院)]), AuthorCompany(id=1281324060319650417, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, xref=3., ext=[AuthorCompanyExt(id=1281324060328039026, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, companyId=1281324060319650417, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.Tianjin Branch of CNOOC (China) Co., Ltd., Tianjin 300452, China), AuthorCompanyExt(id=1281324060340621939, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, companyId=1281324060319650417, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.中海石油(中国)有限公司天津分公司,天津 300452)])]), Author(id=1281324066971816594, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, orderNo=5, 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=1281324067106034324, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, authorId=1281324066971816594, language=EN, stringName=Yu-xuan SHAO, firstName=Yu-xuan, middleName=null, lastName=SHAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1b, address=
1b.China University of Petroleum (East China) College of Mechanical and Electronic Engineering, China University of Petroleum (East China), Qingdao 266580, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1281324067399635605, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, authorId=1281324066971816594, language=CN, stringName=邵雨轩, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1b, address=
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Schematic diagram of RTP cross-sectional deformation under bending conditions, figureFileSmall=XgPSD/J5ngATd4XYLloTNA==, figureFileBig=ndBX/cuMbdFZJUiE6/1C+g==, tableContent=null), ArticleFig(id=1281324071195480736, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=CN, label=图1, caption=
弯曲条件下RTP截面变形示意图, figureFileSmall=XgPSD/J5ngATd4XYLloTNA==, figureFileBig=ndBX/cuMbdFZJUiE6/1C+g==, tableContent=null), ArticleFig(id=1281324071627494049, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=EN, label=Fig.2, caption=
Schematic diagram of curved arc deformation, figureFileSmall=xEuXaBJyHSyjYuAXcTN02w==, figureFileBig=F9DazFRppYEnqj1i8OnLgw==, tableContent=null), ArticleFig(id=1281324071694602914, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=CN, label=图2, caption=
弯曲圆弧变形示意图, figureFileSmall=xEuXaBJyHSyjYuAXcTN02w==, figureFileBig=F9DazFRppYEnqj1i8OnLgw==, tableContent=null), ArticleFig(id=1281324072004981411, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=EN, label=Fig.3, caption=
Flowchart of the calculation procedure, figureFileSmall=d5hAGT9Zz8xxBCD+9eUh2A==, figureFileBig=XPnuMoltwivpflyYt9PAYA==, tableContent=null), ArticleFig(id=1281324072139199140, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=CN, label=图3, caption=
计算程序的流程图, figureFileSmall=d5hAGT9Zz8xxBCD+9eUh2A==, figureFileBig=XPnuMoltwivpflyYt9PAYA==, tableContent=null), ArticleFig(id=1281324072466354853, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=EN, label=Fig.4, caption=
Experimental device and sample tube, figureFileSmall=A/0hJfZwFTIcntwCrcQB2g==, figureFileBig=rujAxTifKads+R3RrCi7CQ==, tableContent=null), ArticleFig(id=1281324072533463718, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=CN, label=图4, caption=
实验装置和样管, figureFileSmall=A/0hJfZwFTIcntwCrcQB2g==, figureFileBig=rujAxTifKads+R3RrCi7CQ==, tableContent=null), ArticleFig(id=1281324072592183975, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=EN, label=Fig.5, caption=
Trend of RTP bending stiffness and initial damage bending moment changing with winding angle, figureFileSmall=rvr/QQqpOpG5xm3aTyTfHQ==, figureFileBig=bo9lI5OawN3Pk6kyxnzcAQ==, tableContent=null), ArticleFig(id=1281324072655098536, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=CN, label=图5, caption=
RTP弯曲刚度及初始损伤弯矩随缠绕角度变化趋势, figureFileSmall=rvr/QQqpOpG5xm3aTyTfHQ==, figureFileBig=bo9lI5OawN3Pk6kyxnzcAQ==, tableContent=null), ArticleFig(id=1281324072961282729, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=EN, label=Fig.6, caption=
Stress distribution of the first layer reinforcement layer of RTP in the local coordinate system under different winding angle conditions, figureFileSmall=FXsKECIKnNP48EeDy72UmQ==, figureFileBig=t4ol/7ew8SA/tjsTmBz2tA==, tableContent=null), ArticleFig(id=1281324073028391594, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=CN, label=图6, caption=
不同缠绕角工况RTP第一层增强层局部坐标系下应力分布, figureFileSmall=FXsKECIKnNP48EeDy72UmQ==, figureFileBig=t4ol/7ew8SA/tjsTmBz2tA==, tableContent=null), ArticleFig(id=1281324073091306155, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=EN, label=Fig.7, caption=
Trend of bending stiffness and initial damage bending moment changing with ellipticity for RTP, figureFileSmall=Naqb5K77pyvk/adLsuP6XQ==, figureFileBig=duIHoSvk6Hg1WfdarFoDHw==, tableContent=null), ArticleFig(id=1281324073254884012, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=CN, label=图7, caption=
RTP弯曲刚度及初始损伤弯矩随椭圆度变化趋势, figureFileSmall=Naqb5K77pyvk/adLsuP6XQ==, figureFileBig=duIHoSvk6Hg1WfdarFoDHw==, tableContent=null), ArticleFig(id=1281324073330381485, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=EN, label=Fig.8, caption=
Stress distribution of the outermost reinforcement layer of RTPs in the local coordinate system with different initial ellipticity, figureFileSmall=uKjbC4Zu6CZBQbpOzdUiUQ==, figureFileBig=krt6b8LyE14ELDVmDnyo/Q==, tableContent=null), ArticleFig(id=1281324073393296046, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=CN, label=图8, caption=
不同初始椭圆度的RTPs最外侧增强层局部坐标系下应力分布, figureFileSmall=uKjbC4Zu6CZBQbpOzdUiUQ==, figureFileBig=krt6b8LyE14ELDVmDnyo/Q==, tableContent=null), ArticleFig(id=1281324073456210607, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=EN, label=Tab.1, caption=
Geometric parameters of the sample tube
, figureFileSmall=null, figureFileBig=null, tableContent=
| 管道名称 | 增强层层数 | 管长/mm | 外保护层厚度/mm | 内衬层厚度/mm | 内径/mm | 外径/mm |
|---|
| 样管1 | 4 | 1800 | 2 | 5 | 48 | 64 |
| 样管2 | 8 | 1800 | 0 | 5 | 50 | 64 |
| 样管3 | 14 | 1800 | 0 | 5 | 50 | 67 |
), ArticleFig(id=1281324073682703024, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=CN, label=表1, caption=
样管几何参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 管道名称 | 增强层层数 | 管长/mm | 外保护层厚度/mm | 内衬层厚度/mm | 内径/mm | 外径/mm |
|---|
| 样管1 | 4 | 1800 | 2 | 5 | 48 | 64 |
| 样管2 | 8 | 1800 | 0 | 5 | 50 | 64 |
| 样管3 | 14 | 1800 | 0 | 5 | 50 | 67 |
), ArticleFig(id=1281324073774977713, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=EN, label=Tab.2, caption=
Material parameters of sample tube
, figureFileSmall=null, figureFileBig=null, tableContent=
| 增强层 | 内衬层和外保护层 |
|---|
| 弹性常数 | E1=28 000 MPa | E2=E3=3200 MPa | E=1200 MPa |
| ν23=0.3 | ν12=ν13=0.0343 | ν=0.38 |
| G23=1230 MPa | G12=G13=2700 MPa |
| 强度参数 | XT=829 MPa | XC=146 MPa | σs=19 MPa |
| YT=ZT=25 MPa | YC=ZC=49 MPa |
| X12=X13=18 MPa | X23=18 MPa |
), ArticleFig(id=1281324073842086578, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=CN, label=表2, caption=
样管材料参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 增强层 | 内衬层和外保护层 |
|---|
| 弹性常数 | E1=28 000 MPa | E2=E3=3200 MPa | E=1200 MPa |
| ν23=0.3 | ν12=ν13=0.0343 | ν=0.38 |
| G23=1230 MPa | G12=G13=2700 MPa |
| 强度参数 | XT=829 MPa | XC=146 MPa | σs=19 MPa |
| YT=ZT=25 MPa | YC=ZC=49 MPa |
| X12=X13=18 MPa | X23=18 MPa |
), ArticleFig(id=1281324075452699315, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=EN, label=Tab.3, caption=
Bending stiffness of three types of RTP
, figureFileSmall=null, figureFileBig=null, tableContent=
| 管道名称 | 增强层层数 | 理论模型/(N·m2) | 四点弯曲试验/(N·m2) | 误差/% |
|---|
| 样管1 | 4 | 1072.25 | 1115.33 | 3.06 |
| 样管2 | 8 | 1452.58 | 1513.52 | 4.03 |
| 样管3 | 14 | 2351.70 | 2455.32 | 4.22 |
), ArticleFig(id=1281324075549168308, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281324037242589682, language=CN, label=表3, caption=
三种RTP的弯曲刚度
, figureFileSmall=null, figureFileBig=null, tableContent=
| 管道名称 | 增强层层数 | 理论模型/(N·m2) | 四点弯曲试验/(N·m2) | 误差/% |
|---|
| 样管1 | 4 | 1072.25 | 1115.33 | 3.06 |
| 样管2 | 8 | 1452.58 | 1513.52 | 4.03 |
| 样管3 | 14 | 2351.70 | 2455.32 | 4.22 |
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