Comparison of Damage Models for Predicting the Non-linear Response of Laminates Under Matrix Dominated Loading Conditions
Comparison of Damage Models for Predicting the Non-linear Response of Laminates Under Matrix Dominated Loading Conditions
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预测基体主导载荷条件下层压板非线性响应的损伤模型比较
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
C. Rose
中科院分区：
文献类型：
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作者：
C. Schuecker;C. Dávila;C. Rose
在平面应力下以基体为主的加载条件下，对纤维增强层合板基体损伤的五种模型进行了评价，并进行了定性和定量的比较。本研究的重点是在一个均匀的应力状态下的嵌入层的响应进行比较。三个模型是专门设计用于建模的非线性响应，由于均匀载荷下的分布矩阵开裂，也占非线性（剪切）的行为开始前的开裂。其余两个模型是局部损伤模型，用于预测应力集中时的局部失效。对分布裂纹与局部裂纹的建模方法以及损伤起始和损伤发展的不同表述进行了比较和讨论。
Five models for matrix damage in fiber reinforced laminates are evaluated for matrix-dominated loading conditions under plane stress and are compared both qualitatively and quantitatively. The emphasis of this study is on a comparison of the response of embedded plies subjected to a homogeneous stress state. Three of the models are specifically designed for modeling the non-linear response due to distributed matrix cracking under homogeneous loading, and also account for non-linear (shear) behavior prior to the onset of cracking. The remaining two models are localized damage models intended for predicting local failure at stress concentrations. The modeling approaches of distributed vs. localized cracking as well as the different formulations of damage initiation and damage progression are compared and discussed.