Article(id=1322594823438188548, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1322594807147512718, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20260251, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793260778531, onlineDateStr=2026-10-29, pubDate=1792425600000, pubDateStr=2026-10-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793260778531, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793260778531, creator=13701087609, updateTime=1793260778531, updator=13701087609, issue=Issue{id=1322594807147512718, tenantId=1146029695717560320, journalId=1189873562199433220, year='2026', volume='', issue='10', pageStart='1', pageEnd='72', issueExtLink='null', onlineDate='null', pubDate='1792425600000', pubDateStr='2026-10-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1793260774647, creator='13701087609', updateTime=1793261345543, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322597202086703686, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1322594807147512718, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322597202086703687, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1322594807147512718, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=42, endPage=53, ext={EN=ArticleExt(id=1322594823819870213, articleId=1322594823438188548, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Research on Fatigue Analysis of Welded Structures Based on the Structural Stress Method, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To address the difficulty in accurately assessing the fatigue life of welded structures, a multi-fatigue-parameter coupled equivalent structural stress evaluation method is adopted. Based on material constitutive relations, mechanical principles, and numerical analysis, an original algorithm for the fatigue life assessment of welded structures is developed, and a quantitative mapping relationship between equivalent structural stress and fatigue damage under multiaxial stress states is established. By combining multi-channel quasi-static superposition technology and integrating rainflow counting and the Miner cumulative damage model, fatigue simulation analysis software suitable for engineering applications is developed through independent programming. A welding simulation case validates the good mesh insensitivity of the software, effectively solving the technical problem of mesh-size sensitivity in traditional industry simulation methods. Through systematic simulation benchmarking of fatigue failure cases, it is demonstrated that the proposed analysis method can accurately predict the fatigue failure risk of welded structures, and the fatigue life prediction accuracy is substantially improved compared with traditional industry simulation methods.

, authors=Xiaodong Zhang, Shaopu Sun, Jiahuan Zhang, Danhui Zhu, Yuanyuan Zhu, Lijia Xu, authorsList=Xiaodong Zhang, Shaopu Sun, Jiahuan Zhang, Danhui Zhu, Yuanyuan Zhu, Lijia Xu, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, 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=1322594824075722758, articleId=1322594823438188548, tenantId=1146029695717560320, journalId=1189873562199433220, language=CN, title=基于结构应力法的焊接结构疲劳分析技术研究, columnId=1322594810385515408, journalTitle=汽车工艺与材料, columnName=2026中国汽车工程学会年会优秀论文（选登）, runingTitle=null, highlight=null, articleAbstract=

为解决焊接结构疲劳寿命难以准确评估的问题，采用多疲劳参量耦合的等效结构应力评估方法，基于材料本构、力学原理与数值分析完成焊接结构疲劳寿命评估自研算法研究，建立了多轴应力状态下等效结构应力与疲劳损伤的定量映射关系。结合多通道准静态叠加技术，并集成雨流计数与Miner累计损伤模型，通过自主编程完成适用于工程化应用的疲劳仿真分析软件开发，通过某焊接仿真案例验证了该软件具备较好的网格不敏感性，有效解决了行业传统仿真方法对网格尺寸敏感的技术难题。通过对疲劳失效案例进行系统性的仿真对标，论证了该分析方法可精准预测焊接结构的疲劳失效风险，疲劳寿命预测精度较行业传统仿真方法有大幅改进。

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张晓东（1989—），男，高级工程师，硕士学位，研究方向为整车多体载荷分解与耐久仿真。

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张晓东（1989—），男，高级工程师，硕士学位，研究方向为整车多体载荷分解与耐久仿真。

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