Numerical simulation of progressive debonding in fiber reinforced composite under transverse loading
Numerical simulation of progressive debonding in fiber reinforced composite under transverse loading
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DOI：
10.1016/j.ijengsci.2010.06.020
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发表时间：
2011
影响因子：
6.6
通讯作者：
V. Kushch;S. V. Shmegera;P. Brøndsted;L. Mishnaevsky
中科院分区：
文献类型：
--
作者：
V. Kushch;S. V. Shmegera;P. Brøndsted;L. Mishnaevsky
基于界面粘结区模型，建立了纤维增强复合材料界面渐进剥离的有限元模型。对单纤维界面裂纹的形核、起裂和扩展进行了详细的研究，并与线性断裂力学模型进行了比较。然后，在双夹杂模型的框架下，研究了纤维间相互作用引起的局部应力重分布对脱粘过程的影响。采用多纤维复合材料模型对纤维增强复合材料的渐进脱粘进行了模拟。结果表明，该模型提供了包括界面裂纹群的形成，整体刚度降低和复合材料的有效弹性模量的诱导各向异性的渐进剥离现象的详细分析。
The finite element model of progressive debonding in fiber reinforced composite is developed based on the cohesive-zone model of interface. An interface crack nucleation, onset and growth have been studied in detail for a single fiber and comparison is made with the linear fracture mechanics model. Then, the effect on debonding progress of local stress redistribution due to interaction between the fibers was studied in the framework of two-inclusion model. Simulation of progressive debonding in fiber reinforced composite using the many-fiber models of composite has been performed. It has been shown that the developed model provides detailed analysis of the progressive debonding phenomenon including the interface crack cluster formation, overall stiffness reduction and induced anisotropy of the effective elastic moduli of composite.