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Understanding process-induced spring-in of L-shaped composite parts using analytical solution

机译：了解使用分析溶液的L形复合材料零件的过程诱导的弹簧

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摘要

This paper aims to understand formation mechanism of the process-induced distortions in the L-shaped composite parts by analytical solutions. To this end, an analytical solution for the total spring-in of L-shaped composite parts is derived by defining the total spring-in as the integrated process-induced distortions in the flange and corner components in combination with shear-lag theory. The new solution, together with previously proposed analytical solution for the corner spring-in of L-shaped parts, not only quantifies the correlation of total spring-in with material and geometrical properties, but also calculates the specific contribution of flange and corner to the total spring-in. The close consistency and trend between analytical predictions and experimental data on the spring-in of L-shaped composites parts show the validity of new analytical solution. Further comparison between numerical simulations and analytical predictions for total spring-in of L-shaped composite parts with various configurations also gives favourable validation for the newly proposed analytical solution.
机译：本文旨在通过分析溶液了解L形复合材料部件中的过程诱导的变形的形成机制。为此，通过将总弹簧定义为剪切理论，通过将总弹簧与剪切滞后理论结合地定义了整体弹簧作为凸缘和拐角部件中的集成过程引起的畸变来得出的L形复合部件的总弹簧的分析解决方案。新的解决方案与先前提出的L形零件的角落弹簧的分析解决方案一起，不仅量化了总弹簧与材料和几何特性的相关性，而且还计算了法兰和角落的特定贡献总春天。 L形复合材料零件弹簧上分析预测与实验数据之间的紧密一致性和趋势显示了新的分析解决方案的有效性。具有各种配置的L形复合部件总弹簧的数值模拟和分析预测之间的进一步比较也为新提出的分析解决方案提供了有利的验证。

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  • 来源
    《Composite Structures》 |2020年第10期|112629.1-112629.11|共11页
  • 作者

    Ding Anxin; Wang Jihui; Li Shuxin;

  • 作者单位

    Wuhan Univ Technol Sch Mat Sci & Engn 122 Luoshi Rd Wuhan 430070 Hubei Peoples R China|Wuhan Univ Technol Inst Adv Mat & Mfg Technol Wuhan 430070 Peoples R China|Tech Univ Muenchen TUM Lehrstuhl Carbon Composites Munich Germany;

    Wuhan Univ Technol Sch Mat Sci & Engn 122 Luoshi Rd Wuhan 430070 Hubei Peoples R China;

    Wuhan Univ Technol Inst Adv Mat & Mfg Technol Wuhan 430070 Peoples R China|Wuhan Univ Technol State Key Lab Mat Synth & Proc Wuhan 430070 Peoples R China|Univ Bristol Dept Mech Engn Bristol BS8 1TR Avon England;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Cure behaviour; Residual stress; Finite element analysis (FEA); Analytical modelling; L-shaped composite part;

    机译：治疗行为;残留应力;有限元分析（FEA）;分析模型;L形复合部件;

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