复合材料层压板连接强度分析参数化建模与试验验证
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刘湘云,女,工程师。主要研究方向:飞机设计强度。Email:liuxiangyun@comac.cc

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刘湘云,E-mail:liuxiangyun@comac.cc

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V214.8

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Parametric modeling and experiment analysis of composite laminate joints
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    摘要:

    采用Python语言开发了复合材料层压板连接快速建模程序,通过人机交互实现自动建模,参数化建模程序可以对层压板单层厚度、铺层顺序、铺层角度、螺栓直径及排列形式、螺栓边距端距等参数进行设计分析。讨论有限元软件ABAQUS与Python语言的接口及命令调用方式,通过RSG编写GUI界面,从而大大简化用户的操作过程。通过Fortran语言开发了用户自定义材料子程序,实现材料失效判据及刚度退化的二次开发,并嵌入快速建模程序中,实现复合材料层压板连接强度分析参数化建模。有限元分析与试验验证相结合,对比分析失效模式及破坏载荷,误差在10%以内,工程上认为误差可接受,表明模型建立的合理性。本文的工作为复合材料层压板连接强度分析有限元前处理建模提供了有价值的参考。

    Abstract:

    A fast modeling program for composite laminate joints by Python was developed to realize auto-modeling. Parametric modeling program can design and analyze parameters such as single layer thickness of laminate, lay-up sequence, lay-up angle, bolt diameter and arrangement form, bolt edge distance and end distance. This paper discusses the interface between ABAQUS and Python and the method of calling the command order. GUI interface is written through RSG, which greatly simplifies the user’s operation process. The user-defined material subroutine was developed by FORTRAN language to realize the secondary development of material failure criterion and stiffness degradation, and embedded in the fast modeling program to realize the parametric modeling of composite laminate joint strength analysis. The rationality of modeling method was proved by comparing the results of FEM and experiments. Comparative analysis of failure mode and damage load, the error is within 10%, the error is considered acceptable in engineering. This study can provide a reference for modeling the composite joints.

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引用本文

刘湘云.复合材料层压板连接强度分析参数化建模与试验验证[J].民用飞机设计与研 究,2022(1):167-173LIU Xiangyun. Parametric modeling and experiment analysis of composite laminate joints[J]. Civil Aircraft Design and Research,2022,(1):167-173. ( in Chinese)

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  • 在线发布日期: 2022-04-17
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