涂层材料的J-C本构模型参数标定  

Parameters Determination of Johnson-Cook Constitutive Model for Coating Materials

作　　者：王宏凯[1] 马吉胜[1] 房立清[1] 王炎[2] 李心强[3] 

机构地区：[1]军械工程学院 [2]中国人民解放军66442部队 [3]中国人民解放军73121部队

出　　处：《火炮发射与控制学报》2015年第3期64-67,85,共4页Journal of Gun Launch & Control

基　　金：清华大学摩擦学国家重点实验室开放基金资助项目(SKLTKF13B15)

摘　　要：Johnson-Cook本构模型是研究材料在动态过程中力学状态的一种常用模型。为标定JohnsonCook本构模型参数,给出了常规的试验方法及试验条件,并通过理论推导,介绍了利用试验数据求解Johnson-Cook本构模型参数的具体方法。在此基础上,以某涂层材料为例,建立了该材料的Johnson-Cook本构模型,验证了文中方法的可行性。Johnson-Cook constitutive model is a popular model for researching the dynamic process of the mechanical state.Conventional test methods and test conditions are presented to calibrate Johnson-Cook constitutive model parameters.And through theoretical derivation,an introduction is made of the specific methods for solving Johnson-Cook constitutive model parameters with experimental data.On this basis,with some coating material as an example,Johnson-Cook constitutive model of the material is constructed,which verified the feasibility of the solution presented previously.

关 键 词：试验固体力学 本构模型 Johnson-Cook 等效应力 涂层材料 

分 类 号：TJ304[兵器科学与技术—火炮、自动武器与弹药工程]