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首页> 外文会议>Proceedings of the American Society for Composites Twenty-Ninth technical conference, Proceedings of the 16th US-JAPAN conference on composite materials ASTM-D30 meeting >Validation of Material Models for Inter and Intra- Laminar Damage in Laminated Composites
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Validation of Material Models for Inter and Intra- Laminar Damage in Laminated Composites

机译：层状复合材料层间和层内损伤材料模型的验证

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摘要

In order to propose predictive finite element simulation tools, it is important to usernmaterial models able to represent the different modes of degradation of the pliesrnforming the laminated composite structure. Damage at the interface between the plies,rnthat is delamination, must also be taken into account.rnIn this paper, we present the solution available in the LMS Samtech Samcef finiternelement code, for the progressive damage analysis of polymer matrix laminatedrncomposites made of UD plies. The material damage models for the interfaces and thernplies are described, together with the parameter identification procedure at the couponrnlevel. Comparison between simulation and tests results validate the approach.rnIt is also demonstrated that, in general applications, modeling delamination alonernis not enough, and it is essential to model the damage inside the plies besides therndamage at the interfaces.
机译：为了提出可预测的有限元模拟工具，重要的是用户材料模型能够代表形成层压复合结构的层板的不同降解模式。还必须考虑层之间的分层损坏，即分层。本文中，我们提出了LMS Samtech Samcef有限元代码中可用的解决方案，用于逐步分析由UD层制成的聚合物基层状复合材料。描述了接口和线束的材料损坏模型，以及在试样级的参数识别过程。仿真和测试结果之间的比较验证了该方法的有效性。还证明，在一般应用中，仅对分层进行建模是不够的，除了对界面处的损坏进行建模之外，对层内部的损坏进行建模也是至关重要的。

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