南京航空航天大学学报2018，Vol.50Issue(1)：16-23,8.DOI:10.16356/j.1005-2615.2018.01.003
面向纤维增强复合材料低速冲击损伤的非线性混合模型
A Nonlinear Mixed-Mod Model Oriented Low Velocity Impact Damage of FRP
摘要
Abstract
A progressive damage model based on continuum damage mechanics,including a non-linear shear response and a unified mixed-mode intralaminar damage progression,is used to predict low-veloci-ty impact damage of composite laminates.This model can predict four intralaminar damage modes(in-cluding matrix cracking and fiber fracture both in tension and compression)and delamination between different layers.T he Puck failure criterion is used for capturing damage onset and the damage evolution is controlled by the effective strain on the fracture plane.For damage onset,the lamina′s in-situ effect is taken into consideration,and the characteristic length is used to reduce the mesh dependency.Experi-mental and numerical results are compared for various impact energies on laminates[454/-458/454], [03/45/-45]Sand[45/-45/02/90/45/02/-45/45]3and prove the capabilities of the model.关键词
复合材料/低速冲击/渐进损伤演化/Puck准则/剪切非线性Key words
composite/low-velocity impact/progressive damage evolution/Puck failure criterion/non-lin-ear shear分类
航空航天引用本文复制引用
段永照,姚卫星,陈方..面向纤维增强复合材料低速冲击损伤的非线性混合模型[J].南京航空航天大学学报,2018,50(1):16-23,8.基金项目
国家自然科学基金(11202098)资助项目 （11202098）
江苏高校优势学科建设工程基金(PAPD)资助项目. （PAPD）
