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冲击压缩下脆性材料中失效波的灾变模型
姜智捷; 夏蒙棼; 汪海英
Source Publication北京力学会第19届学术年会论文集
2013
Pages188-189
Conference Name北京力学会第19届学术年会
Conference Date2013-01-12
Conference Place中国北京
Abstract平板撞击下,玻璃、陶瓷等脆性材料在冲击应力小于材料冲击弹性极限(HEL)时,会出现失效波现象,实验观测表明失效波阵面前后材料性质发生了突变.本文对玻璃、陶瓷等脆性材料的力学性能进行了分析,基于弹性-统计脆性(ESB)模型,模拟了脆性材料在冲击下的响应.发现脆性材料在冲击应力小于HEL时,可能发生灾变,物理上即表现为失效波.数值模拟表明,模型与实验结果基本吻合,较好地反映了失效波的形成机理.
Keyword失效波 弹性-统计脆性模型 韦伯分布 失效波速
DepartmentLNM冲击动力学与新型材料力学性能
Language中文
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/48630
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
姜智捷,夏蒙棼,汪海英. 冲击压缩下脆性材料中失效波的灾变模型[C]北京力学会第19届学术年会论文集,2013:188-189.
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