计算力学学报2016，Vol.33Issue(6)：840-845,6.DOI:10.7511/jslx201606006
层合板冲击损伤的 PD 率效应本构模型分析
Peridynamic rate-dependent constitutive model for impact damage of composite laminate
摘要
Abstract
A peridynamic rate‐dependent constitutive equation is advanced based on the prototype micro‐elastic brittle (PMB) model and the Kelvin‐Voigt viscoelastic model .By means of the LAMMPS molecu‐lar dynamic code ,we perform the simulations for the isotropic circular epoxy plate ,the uni‐directional composite laminate and the multi‐directional composite laminate subjected to impact loading ,and compare their impact resistance .Meanwhile ,we analyze the damage on upper and lower surface of the multi‐directional composite laminate subjected to impact loadings with various velocities .The results reveal the failure mechanism of composite laminate in the impacting process from low‐velocity collision to high‐velocity penetration .关键词
近场动力学/PD率效应本构模型/复合材料层合板/冲击速度/损伤Key words
peridynamics/PD rate-dependent constitutive model/composite laminates/impact velocity/damage分类
信息技术与安全科学引用本文复制引用
孙朝阳,黄再兴..层合板冲击损伤的 PD 率效应本构模型分析[J].计算力学学报,2016,33(6):840-845,6.基金项目
国家自然科学基金（11672129）资助项目． （）
