摘要
为研究某产品轴承基座高强度连接螺栓使用中发生的延迟断裂失效问题,笔者应用三维裂纹扩展软件FRANC3D对该型螺栓断裂过程进行计算仿真,通过对材料参数的设定体现环境对整个断裂过程的影响,从而达到探索性地对应力腐蚀断裂仿真进行研究的目的。将裂纹扩展后的仿真结果与螺栓实际宏观断口相比较,仿真结果基本符合螺栓实际断裂情况。
Due to the problem of delay rupture of the bolts from the bearing base in a cover system,we use FRANC3D（Fracture Analysis Code in 3Dimensions） to calculate and simulate the process of the bolt′s fracture.It represents the influence of environment on the process of fracture through setting material character parameters.It is a new method for fracture simulation of stress corrosion cracking.After comparing the propagated crack′s shape and size with the bolt′s real macro-fractograph,the simulation results are in fairly good a greement with the bolt′s real fracture.
出处
《机械科学与技术》
CSCD
北大核心
2010年第9期1217-1221,共5页
Mechanical Science and Technology for Aerospace Engineering
基金
江苏省博士后科研项目(0701017C)资助
关键词
高强度螺栓
应力腐蚀
计算仿真
FRANC3D
high-strength bolt
stress corrosion cracking
calculation and simulation
FRANC3D
