裂纹尖端应力强度因子的一种较精确求解方法

A HIGHER ACCURACY METHOD TO CALCULATE THE STRESS INTENSITY FACTOR AT THE POINTED END OF THE CRACK

本文根据裂纹尖端应力应变场奇异性的特点,把奇异单元与周围等参单元结合使用,编制计算机程序,从而使弹性二维裂纹尖端的应力强度因子有较高的计算精度。图4,表2,参5.

This paper based on .the odd characteristics of the stress and strain field at the pointed end of a crack, combines odd element with equivalent parametric element and uses it to programme calculations, thus achieving a higher calculating accuracy in stress intensity factor of the two-dimensional crack. 4figs, 2tabs, 5refs.