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CDM模型及在纤维增强层合材料侵彻数值模拟中的应用
引用本文:王元博,王肖钧,卞梁,余育苗.CDM模型及在纤维增强层合材料侵彻数值模拟中的应用[J].爆炸与冲击,2008,28(2):172-177.
作者姓名:王元博  王肖钧  卞梁  余育苗
作者单位:1.中国科学技术大学近代力学系,安徽 合肥 230027
摘    要:基于纤维增强层合材料的一种三维连续损伤本构模型(continuum damage constitutive model, CDM),采用动态有限元程序LS-DYNA对Kevlar纤维增强层合材料的弹道侵彻过程进行了数值模拟,预测了弹丸的剩余速度以及靶板的变形和破坏模式,给出了弹道冲击下不同损伤模式的分布及演化。通过与实验结果的比较验证了数值计算的有效性和合理性。

关 键 词:固体力学    侵彻    CDM模型    纤维增强层合材料
文章编号:1001-1455(2008)02-0172-06
修稿时间:2006年9月12日

CDM model and its application to numerical simulation on fiber-reinforced laminate under penetration
WANG Yuan-bo,WANG Xiao-jun,BIAN Liang,YU Yu-miao.CDM model and its application to numerical simulation on fiber-reinforced laminate under penetration[J].Explosion and Shock Waves,2008,28(2):172-177.
Authors:WANG Yuan-bo  WANG Xiao-jun  BIAN Liang  YU Yu-miao
Institution:1.Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, Anhui, China
Abstract:A continuum damage constitutive model for the fiber-reinforced laminate was introduced.Penetration of the fiber-reinforced laminate by a flat-ended projectile was numerically simulated by using the 3D finite element software LS-DYNA.Residual velocity of the projectile,deformation and failure modes of the laminate under impact loading were predicted.Evolvement and distribution of the different damage modes were obtained.Simulated results are in agreement with those of the ballistic tests.
Keywords:solid mechanics  penetration  CDM constitutive model  fiber-reinforced laminate
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