摘要
构建了功能梯度材料和基体均匀材料的应力—应变关系的弹性本构模型,利用Plane183单元模拟裂纹尖端的奇异性,利用高阶接触单元Conta173和目标单元Targe169组成接触对,对功能梯度材料进行了静态断裂力学分析和应力强度因子求解,找出了裂纹应力和位移最大处,所得到的结果为功能梯度材料的动态力学分析提供了理论依据。
An elastic constitutive model for the stress-strain relationship of functionally graded materials and homogeneous materials is constructed.Using the Plane183 element to simulate the singularity of the crack tip,and using the high-order contact element Conta173 and the target element Targe169 to form a contact pair,a static fracture mechanics analysis and stress intensity factor solution were performed on the functionally graded material to find the maximum crack stress and displacement.The obtained results provide a theoretical basis for the dynamic mechanical analysis of functionally graded materials.
作者
王素粉
WANG Su-fen(Sanmenxia Polytechnic,Sanmenxia 472000,China)
出处
《机械工程与自动化》
2020年第1期87-88,91,共3页
Mechanical Engineering & Automation
基金
河南省高等学校青年骨干教师培养计划课题(2018GGJS247)
关键词
功能梯度材料
断裂力学
ANSYS
应力强度因子
functionally graded material
fracture mechanics
ANSYS
stress intensity factor
