爆炸与冲击2018，Vol.38Issue(2)：279-288,10.DOI:10.11883/bzycj-2016-0224
冲击波与破片对波纹杂交夹层板的联合毁伤数值研究
Numerical research on response of hybrid corrugated sandwich plates subjected to combined blast and fragment loadings
摘要
Abstract
The dynamic response of hybrid corrugated sandwich plates subjected to combined effects of blast and fragment loading was analyzed using finite element analysis code LS-DYNA.The effects of charge mass,loading type and filling strategy on deformation/failure pattern of hybrid corrugated sandwich plates were investigated.The comparison of anti combined loadings performance to three equivalent structures (solid plate,double-layered plate and corrugated sandwich plate) was made.Finally,the energy absorption characteristics of hybrid corrugated sandwich panels were discussed.Numerical results show that the damage extent of hybrid corrugated sandwich plates under bare fragment cluster loading or combined blast and fragment loading is more severe than that caused by bare blast loading.When the charge mass is small,the performances of corrugated sandwich plate and hybrid corrugated sandwich plate are superior to equivalent solid plate and double-layered plate.The corrugated sandwich panels with fully filling configuration possess the best damage resistance,followed by that with upper space filling configuration,and that with lower space filling configuration has the worst.All the structures fractured catastrophically when the charge mass is large.For energy absorption,the corrugated core is the main energy absorption part under bare blast loading,while the front face becomes the main energy absorption part under the other two loading conditions.关键词
抗联合毁伤性能/冲击波与破片/波纹杂交夹层板/失效模式/LS-DYNAKey words
anti combined loadings performance/blast and fragment/hybrid corrugated sandwich plate/failure pattern/LS-DYNA分类
数理科学引用本文复制引用
李勇,肖伟,程远胜,刘均,张攀..冲击波与破片对波纹杂交夹层板的联合毁伤数值研究[J].爆炸与冲击,2018,38(2):279-288,10.基金项目
国家自然科学基金项目(51509096,51209099) （51509096,51209099）
