首页> 外文期刊>Composite Structures >A numerical study on cross ply laminates subjected to stray fragments impact loading
【24h】

A numerical study on cross ply laminates subjected to stray fragments impact loading

机译:对杂散片段冲击载荷的交叉层层压板的数值研究

获取原文
获取原文并翻译 | 示例
获取外文期刊封面目录资料

摘要

The present study reports the response of composite laminates under high velocity impact by fragments. A numerical model is developed to simulate a hostile scenario of impact of fragments after their interaction with a blast wave to study the response of cross ply laminates. The composite laminates are modelled using a progressive damage model having a string of failure criteria and damage variables. The damage model is based on a combined elastic-plastic response which was found to have good agreement with existing experimental and numerical results. The CONWEP blast wave model is used to interact with a stacked set of fragments which then goes on to collide with the laminate. The 12-ply laminate is kept at various standoff distances as well as angles for different cases to study the collective and individual effect of fragment impact. The performance of laminates is discussed based on different combinations of standoff distances and angles for deformable AA7075 and rigid Steel projectiles.
机译:本研究报告了碎片在高速冲击下复合层压板的响应。开发了一种数值模型来模拟碎片在与爆发层相互作用后的敌意的影响,以研究交叉层层压板的响应。复合层压板是使用具有失效标准和损坏变量的逐步损伤模型进行建模。损伤模型基于组合的弹性塑料响应,发现与现有的实验性和数值结果具有良好的一致性。 ConWep Blast波模型用于与堆叠的一组片段相互作用,然后进行堆叠以与层压板碰撞。将12层层压板保持在各种支座距离以及不同情况下的角度,以研究碎片撞击的集体和个体效果。基于用于可变形AA7075和刚性钢射弹的距离距离和角度的不同组合来讨论层压板的性能。

著录项

获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号