晶体塑性理论及其在金属高低周疲劳寿命预测中的应用  

Crystal plasticity theory and its application to prediction of high and low cycle fatigue life of metals

作　　者：蒋安琪 霍元明 周子鑫 严祯荣 何涛 王昭昭 纪宏超 孙悦 王新宇 JIANG An-qi;HUO Yuan-ming;ZHOU Zi-xin;YAN Zhen-rong;HE Tao;WANG Zhao-zhao;JI Hong-Chao;SUN Yue;WANG Xin-yu(School of Mechanical and Automotive Engineering,Shanghai University of Engineering Science,Shanghai 201600,China;Collage of Mechanical Engineering,North China University of Science and Technology,Tangshan 063210,China)

机构地区：[1]上海工程技术大学机械与汽车工程学院,上海201600 [2]华北理工大学机械工程学院,河北唐山063210

出　　处：《塑性工程学报》2025年第1期1-15,共15页Journal of Plasticity Engineering

基　　金：国家自然科学基金面上资助项目(52275350);西北工业大学横向技术服务((23)CL-001)。

摘　　要：作为结构材料的主要失效方式,金属的高低周疲劳性能影响设备的服役寿命。晶体塑性理论从微观结构出发用于描述材料微观结构和性能的关系,在金属材料微观结构和力学性能方面的研究还存在很多待解决的问题。针对金属材料高低周疲劳的问题,本文对晶体塑性基本理论与本构模型进行了梳理,列举了基于晶体塑性有限元法的疲劳指示因子,介绍了近15年来晶体塑性有限元法在金属材料高低周疲劳中的应用,并对应用晶体塑性有限元法于金属材料超高周疲劳进行了拓展,最后对未来发展趋势和有待加强的研究方向进行了展望。As the main failure mode of structural materials,the high and low cycle fatigue performance of metals affects the service life of equipment.The crystal plasticity theory is used to describe the relationship between microstructure and properties of material from the perspective of microstructure.There are still many unresolved problems in the study of microstructure and mechanical properties of metal materials.Aiming at the problem of high and low cycle fatigue of metal materials,the basic crystal plasticity theory and constitutive models were sorted out in this paper,fatigue indicators based on crystal plastic finite element method were listed,and the application of crystal plasticity finite element method in high and low cycle fatigue of metal materials in the past fifteen years was introduced.The application of crystal plasticity finite element method to the ultrahigh cycle fatigue of metal materials was expanded.Finally,the future development trends and research directions to be strengthened were discussed.

关 键 词：晶体塑性 低周疲劳 高周疲劳 疲劳指示因子 本构模型 

分 类 号：O344.1[理学—固体力学]