摘要
利用弹塑性有限元方法研究了压应力对裂纹尖端塑性区的影响和长短裂纹尖端的塑性区和裂纹张开剖面。通过分析表明,压应力对裂纹尖端塑性区和疲劳裂纹的扩展有显著的影响。
A detailed elastic-plastic finite element analysis of the effect of the compressive loading on crack tip plasticity is studied. The size of the crack tip reverse plastic zone and the crack opening profile for short （0.1mm） and long cracks（2mm） have been studied, too. The analysis shows that the compressive loading has a significant contribution towards the crack tip plasticity and the fatigue crack growth.
出处
《机械工程师》
2007年第1期79-81,共3页
Mechanical Engineer
基金
黑龙江省教育厅科学技术研究项目(11511073)
关键词
有限元
疲劳裂纹
塑性区
裂纹张开位移
finite element analysis
fatigue crack
plastic zone
crack opening displacement
