一种基于能量最小化的断裂准则及其在ABAQUS软件中的应用  

A Fracture Criteria Based on Energy Minimization and Its Application in ABAQUS Software

作　　者：陈明亚[1] 刘涵 高红波 周帅 林磊[1] 彭群家 CHEN Ming-ya;LIU Han;GAO Hong-bo;ZHOU Shuai;LIN Lei;PENG Qun-jia(Suzhou Nuclear Power Research Institute Co.,Ltd.;EDF R&D China Center)

机构地区：[1]苏州热工研究院有限公司 [2]法国电力公司中国研发中心

出　　处：《化工机械》2022年第5期806-810,共5页Chemical Engineering & Machinery

基　　金：国家自然科学基金项目(12075274);国家重点研发计划项目(2020YFB1901500)。

摘　　要：研究法国电力公司研发部提出的一个新型的脆性断裂能量准则——G_(p)方法论,该理论将断裂力学和损伤力学相结合,基于能量最小化原则,为判断结构中裂纹是否扩展提供了理论依据。同时,为推动G_(p)方法论的工程应用,基于标准CT50试样,研究了在通用有限元软件ABAQUS中应用G_(p)断裂评估准则的方法。In this paper,a new brittle fracture energy criterion called as G_(p) methodology proposed by the R&D Department of EDF was investigated,which has fracture mechanics combined with damage mechanics(based on the energy minimization principle)to provide a theoretical basis for judging the crack propagation in structures.Meanwhile,for purpose of promoting the engineering application of G_(p) methodology,the method of applying G_(p) fracture evaluation criterion in ABAQUS was studied based on the standard CT50 sample.

关 键 词：16MND5材料 标准CT50试样 G_(p)断裂评估准则 能量最小化 ABAQUS 

分 类 号：TQ050.41[化学工程]