摘要
基于Hamilton体系下的弹性力学理论,推导了扩展有限元法的有关公式。具体计算了含裂纹的等厚度薄板的应力强度因子,数值分析所得结果与精确解进行了比较,证明了本文方法的正确性。本文为扩展有限元研究提供了一种新的数值计算方法,拓展了扩展有限元的基础理论。
Based on the elasticity theory of Hamilton system, the corresponding formulae of extended finite element method are derived, and the stress intensity factor of the equal thickness thin plate with crack is calculated. The nume- rical result is compared with the exact solution, verifying the effectiveness of this method. A new numerical app- roach to study the extended finite element is offered, and the basic theory of the extended finite element is ex- panded.
出处
《中国民航大学学报》
CAS
2015年第1期59-64,共6页
Journal of Civil Aviation University of China
基金
中国民航大学科研基金项目(2012kye07)
