火炸药学报2016，Vol.39Issue(1)：34-38,5.DOI:10.14077/j.issn.1007-7812.2016.01.005
基于EFG方法的PBX炸药圆弧巴西实验的数值模拟
Numerical Simulation of PBX under Circular Anvil Brazilian Test Based on EFG Method
摘要
Abstract
To simulate the crack formation and extension process of PBX sample in the quasi-static circular anvil Brazilian test,based on EFG method and cohesive model,the experimental process was calculated by implicit analysis and simulation of LS-DYNA software.The results show that the calculated results are in good agreement with reported experimental ones in literature,proving the feasibility of the method.The fracture process of PBX can be well described by linear cohesive model.The crack initiation of PBX sample occurs after the compression load reaches the peak value,and with the further compression of compression anvil,the crack of the specimen center extends along the diameter direction to the anvil.关键词
固体力学/圆弧巴西实验/EFG方法/内聚力模型/PBX/LS-DYNA软件Key words
solid mechanics/circular anvil Brazilian test/EFG method/cohesive model/PBX/LS-DYNA software分类
军事科技引用本文复制引用
崔云霄,陈鹏万,戴开达,王雷元,刘龑龙..基于EFG方法的PBX炸药圆弧巴西实验的数值模拟[J].火炸药学报,2016,39(1):34-38,5.基金项目
国家自然科学基金资助(No.11202027,No.11221202,No.U1330202) （No.11202027,No.11221202,No.U1330202）
