摘要
针对复合金属材料裂纹断裂的问题,提出了一种新型增强有限元算法,并基于材料力学推导出复合金属材料杆加载模型的解析表达式,最后借助有限元软件Abaqus讨论了不同断裂韧性对新型增强有限元算法模拟稳定性的影响,揭示了该方法潜在的数值不稳定性因素。
Aiming at the problem of crack fracture in composite metal materials,a new enhanced finite element algorithm is proposed,and the analytical expression of the composite metal rod loading model is derived based on material mechanics.Finally,with the help of the finite element software Abaqus,the influence of different fracture toughness on the simulation stability of the new enhanced finite element algorithm is discussed,and the potential numerical instability factors of the method are revealed.
作者
李乐毅
LI Le-yi(Department of Mechanical and Information Engineering,Sichuan College of Architectural Technology,Deyang 618000,China)
出处
《机械工程与自动化》
2020年第6期10-12,共3页
Mechanical Engineering & Automation
基金
德阳市科技计划资助项目(2019SZ075)
四川建筑职业技术学院科研项目(2019KJ09)。
关键词
复合金属
断裂
新型增强有限元
composite metal
fracture
new reinforced finite element
