PBX Creep Model Based on Modified Time Hardening Theory
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Abstract:
reasonable model of plastic bonded exploisve (PBX) substantiated by creep property is useful for finite element simulation of machining PBX components. Modified time hardening theoretical (MTHTT) model,which has compact form and less undetermined parameters,is promoted in this paper to describe creep behavior of PBX. A HMX based PBX is employed to conduct compressive creep tests. The model parameters are determined and the corresponding fitting details are discussed for validating the model. Meanwhile,finite element software is used to simulate the creep deformation of cylinder specimens subjected to the experimental stresses. Theoretical analysis and the simulation show that the model agrees well with the results of creep test and it could be used in simulating the deformation of PBX components during the machining process.
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唐维,李明,温茂萍,等.基于修正时间硬化理论的PBX蠕变模型[J].含能材料,2008,16(1):34-36. TANG Wei, LI Ming, WEN Mao-ping, et al. PBX Creep Model Based on Modified Time Hardening Theory[J]. Chinese Journal of Energetic Materials,2008,16(1):34-36.