摘要
提出了蠕变断裂局部损伤方法的有限元模型，通过在局部薄弱环节引入损伤单元，较好地揭示了多向应力条件下蠕变损伤发生和发展的规律。应用这一有限元模型分析缺口圆棒试样的蠕变变形与损伤，得到的计算结果与试验结果能够较好地相吻合。
A finite element model is given in the paper to simulate the local damage in creep fracture processWith a damagecoupled element introduced for the local degraded material at multiaxial stress,the initiation and evolution of creep damage has been describedA calculation has been made for creep deformation and damage on a doubleV circumferentially notched round bar,and the results are coincided reasonably with the experimental results
出处
《材料工程》
EI
CAS
CSCD
北大核心
1998年第4期6-8,共3页
Journal of Materials Engineering
关键词
蠕变断裂
损伤力学
有限元
局部损伤
creep fracture damage mechanics finite element method
