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材料强度对层板抗弹性能和损伤特性的影响
引用本文:古兴瑾,许希武,郭树祥.材料强度对层板抗弹性能和损伤特性的影响[J].固体力学学报,2012,33(5):493-500.
作者姓名:古兴瑾  许希武  郭树祥
作者单位:1. 南京航空航天大学2. 南京航空航天大学航空宇航学院结构强度所(210016)
摘    要:根据纤维增强复合材料宏细观结构特征,基于ABAQUS软件平台,建立了层合板高速冲击损伤三维有限元分析模型。该模型在复合材料层间引入界面单元模拟层间分层,采用三维粘弹性本构,结合Hashin失效准则模拟单层板面内损伤.利用该模型,深入研究了复合材料层板的抗弹性能和损伤特性,数值分析结果与实验结果吻合良好,证明了该方法的合理有效性。通过数值分析,详细探讨了材料强度参数对层板抗弹性能和损伤特性的影响规律,获得了一些有价值的结论。

关 键 词:复合材料  本构模型  冲击  损伤  数值分析  
收稿时间:2011-09-02

INFLUENCES OF STRENGTH PROPERTIES ON THE BALLISTIC RESISTANCE AND DAMAGE CHARACTERISTICS OF COMPOSITE LAMINATES
Xingjin Gu , Xiwu Xu , Shuxiang Guo.INFLUENCES OF STRENGTH PROPERTIES ON THE BALLISTIC RESISTANCE AND DAMAGE CHARACTERISTICS OF COMPOSITE LAMINATES[J].Acta Mechnica Solida Sinica,2012,33(5):493-500.
Authors:Xingjin Gu  Xiwu Xu  Shuxiang Guo
Abstract:According to the macrostructure and microstructure of the composite laminates, a 3D finite element model for analyzing high velocity impact damage of composite laminates was established based on ABAQUS software platform. The cohesive elements were involved between two layers to simulate delaminations of the composite laminates, and a 3D visco-elastic constitutive model, coupled with Hashin failure criteria was used to predict the in-plane failure of composite laminates. By adopting this model, the ballistic performance and damage characteristics of composites laminates under high velocity impact were studied. The numerical results agree well with the experimental results. Parametric studies were conducted to study the effects of the strength parameters on the damage of composite laminates under high velocity impact. Some valuable conclusions were obtained.
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