摘要
介绍了断裂动力学的基本方程,得出了动裂纹尖端的近似应力场、位移场以及动应力强度因子,对尖端的塑性区做了一些讨论,推导出的裂纹尖端特性的基本理论,可指导工程中的设计和生产中的安全防护,并可以预测动裂纹开裂时的状态和扩展趋势.
This paper simply presented the basic equations of fracture mechanics. The approximate dynamic stress field, displacement and dynamic stress intensity factor at the crack tip are obtained. Some discussions about the plastic zone in the crack tip are given out.Deduce a basic theory of the crack tips property.It can give a direction in the engineering design and safeguards in the production;it can forecast the state and the trend of the dynamic crack.
出处
《哈尔滨商业大学学报（自然科学版）》
CAS
2004年第5期608-611,共4页
Journal of Harbin University of Commerce：Natural Sciences Edition
