复合材料层合板冲击损伤近场动力学模型与分析  

Peridynamic model and analysis for impact damage of composite laminate

作　　者：王富伟[1] 黄再兴[1] 

机构地区：[1]南京航空航天大学机械结构力学及控制国家重点实验室工程力学系,南京210016

出　　处：《计算力学学报》2014年第6期709-713,721,共6页Chinese Journal of Computational Mechanics

基　　金：国家自然科学基金(11172130)资助项目

摘　　要：近场动力学(简称PD)理论通过域内积分建立物质基本运动方程。不同于传统理论中通过微分建立运动方程的方法,该理论对场函数没有连续性的要求,因而适合求解各类不连续问题。基于此,本文建立了正交各向异性单层板PD理论模型,进而引入单层板层间作用,发展了正交各向异性层合板PD模型及其损伤模型,并模拟了各向同性与各向异性层合板冲击损伤;通过对比分析,对模型的有效性进行了验证。Peridynamic（PD）theory is formulated by means of integral equations,as opposed to partial differential equations that include derivatives of displacements in the classical continuum theory.There-fore it is well-suited for any kinds of problems concerning discontinuities without any assumptions.In this paper,a PD model for orthotropic lamina is firstly proposed.Then the composite laminate PD model as well as its damage model is introduced by considering an interlayer interaction between layers.Final-ly,a comparative simulation of impact damage for isotropic and orthotropic laminates is carried out to verify the effectiveness of the present approach.

关 键 词：近场动力学理论 非局部模型 复合材料层合板 PDLAMMPS 冲击损伤 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] O313[自动化与计算机技术—控制科学与工程]