7N01铝合金多类型承载接头疲劳特征参数有限元分析研究  

Finite element analysis of fatigue characteristic parameters of multi type load-bearing joints of 7N01 aluminum alloy

作　　者：赵鑫 ZHAO Xin(Huabei Electromechanical School,Changzhi 046000,China)

机构地区：[1]华北机电学校,山西长治046000

出　　处：《世界有色金属》2024年第24期52-54,共3页World Nonferrous Metals

摘　　要：通过缺口应力法,使用有限元模拟软件Abaqus/CAE对多类型承载接头进行建模,模拟局部位置的应力分布状态。计算对应区域的缺口应力强度因子,并通过相关理论将其转换为平均能量应变能密度,通过比较得到接头的平均应变能密度即应力分布与其疲劳极限值的比值关系,并根据缺口应力法建立平均应变能密度与疲劳寿命的关系。Using the notch stress method,finite element simulation software Abaqus/CAE was used to model multiple types of load-bearing joints and simulate the stress distribution state at local locations.Calculate the notch stress intensity factor of the corresponding area,and convert it into the average energy strain energy density through relevant theories.By comparing,the average strain energy density of the joint,which is the ratio of stress distribution to its fatigue limit value,is obtained.Based on the notch stress method,establish the relationship between the average strain energy density and fatigue life.

关 键 词：7N01铝合金 角焊缝 有限元模拟 

分 类 号：TG457.11[金属学及工艺—焊接]