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Postbuckling behavior of face/core debonded composite sandwich plate considering matrix crack and contact effect

机译:考虑基体裂纹和接触效应的面/芯剥离复合夹芯板的屈曲后行为

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摘要

A study of postbuckling behavior in face/core interface debonded composite sandwich plats is presented. A methodology is proposed for simulating the multi-failure responses, such as initial and postbuckling, contact of interfacial debonding front region and face matrix cracking, etc. A finite element postbuckling analysis is conducted on the basis of the Von karman nonlinearity assumption and the zig-zag deformation theory combined with a debonding model and a multi-scalar damage model. The numerical models and methods are briefly introduced in this paper and some numerical examples are presented to illustrate it.
机译:提出了在面/芯界面剥离的复合夹层板中屈曲后行为的研究。提出了一种模拟多失效响应的方法,例如初始屈曲和后屈曲,界面脱粘前沿区域的接触和面矩阵裂纹等。在Von karman非线性假设和zig的基础上进行了有限元后屈曲分析。 -zag变形理论结合了分离模型和多尺度损伤模型。本文简要介绍了数值模型和方法,并给出了一些数值例子进行说明。

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