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Application of cohesive zone model for crack growth in energetic material with high solid particle content


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Application of cohesive zone model for crack growth in energetic material with high solid particle content
Liao Haibo1Sun Chaoxiang2
1.Anhui Shenjian Technology Co Ltd,Hefei 230061,China;
2.School of Mechanical Engineering,NUST,Nanjing 210094,China
cohesive zone model energetic materials interfacial mechanics model crack growth
In view of that the debonding of energetic particle/matrix interfaces has important effect on the macroscopic behavior of energetic materials with high solid particle content,the basic theory of cohesive zone model and the interfacial mechanics model for energetic materials are presented here.The cohesive zone model is used to simulate the crack growth in energetic materials with the high solid particle content.The results of numerical simulations are in agreement with the results of Tan's experiments.By analyzing the characteristic of crack propagation in high energetic materials,it is known that the maximum stress zone is ahead of the crack tip in the whole crack growth process.The simulation results are in accordance with the experiment results,verifying that the cohesive zone model can be used for the mechanics studies of the energetic materials with the high solid particle content.


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Last Update: 2015-10-31