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Numerical prediction of compression after impact behavior of woven composite laminates

机译:机织复合材料层压板冲击后压缩的数值预测

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摘要

This work investigates the numerical prediction of compression after impact strength in woven composite laminates. Intralaminar and interlaminar damage prediction were evaluated using proposed damage models implemented as user defined material in ABAQUS Explicit multipurpose FE code. The numerical models were developed using the finite elements method with two different modeling approaches named Single Shell Model (SSM) and Split Shell Model (SpSM). The Single Shell Model (SSM) used only shell elements to model the laminates and the delamination effects were neglected. The delamination effects were included in the Split Shell Model (SpSM) by using a delamination contact-logic. An experimental programme was carried out to validate the proposed damage modeling approaches. The proposed damage models and the modeling approaches have proven to be capable of reproducing experimental results with good accuracy for the impact tests and CAI tests.
机译:这项工作研究了机织复合层压板冲击强度后压缩的数值预测。使用建议的损伤模型(作为用户定义的材料在ABAQUS Explicit多功能FE代码中实现)评估了腹腔内和层间损伤的预测。数值模型是使用有限元方法开发的,具有两种不同的建模方法,分别称为“单壳模型(SSM)”和“裂壳模型(SpSM)”。单壳模型(SSM)仅使用壳单元对层压板进行建模,而分层效果则被忽略。通过使用分层接触逻辑将分层效果包括在“拆分壳模型”(SpSM)中。进行了一个实验程序,以验证提出的损伤建模方法。事实证明,所提出的损伤模型和建模方法能够针对冲击试验和CAI试验以高精度再现实验结果。

著录项

  • 来源
    《Composite Structures》 |2014年第7期|476-491|共16页
  • 作者

    P.A.A.E. Mendes; M.V. Donadon;

  • 作者单位

    Institute Tecnologico de Aeronautica, CTA-ITA-IEA, Sao Jose dos Campos, SP 12228-900, Brazil;

    Institute Tecnologico de Aeronautica, CTA-ITA-IEA, Sao Jose dos Campos, SP 12228-900, Brazil;

  • 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

    CAI; Damage model; CFRP; Finite elements;

    机译:CAI;损坏模型;CFRP;有限元;

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