摘要
采用有限单元法分析了具有微裂纹的表面脆性薄膜对高速工具钢基体的屈服和后继塑性行为的影响，特别研究了基体材料的塑性硬化指数以及裂纹深度对最大塑性应变和塑性区尺寸的影响，同时考察了屈服载荷以及塑性区尺寸随裂纹深度的影响。
The effects of a brittle thin hard film with micro-cracks on the yielding and subsequent plasticity behaviors of the high speed steel substrate were analyzed by the finite element method.Special attention was given to the effects of the plastic hardening parameter and the crack depty on the maximum equivalent plastic strain and the size of the local plastic zone. The variation of the critical yielding stress and the size of plastic zone wity crack depth were also investigated.
出处
《中国表面工程》
EI
CAS
CSCD
2000年第4期15-18,共4页
China Surface Engineering
基金
国家自然科学基金!资助项目 (58705009)
关键词
薄膜
微裂纹
塑性变形
有限元法
高速钢
thin film, micro-crack,plasticity behaviors,finite element met(
