A SIMPLE METHOD OF DETERMINING STRESS INTENSITY FACTORKⅠFROM ISOCHROMATIC FRINGE LOOPS
来源期刊：中南大学学报(英文版)1998年第2期
论文作者：Chen Feng Sun Zongqi
文章页码：51 - 53
Key words：stress intensity factor; mode I fracture; photoelastic method
Abstract: A new photoelastic method of obtaining mode I stress intensity factor(SIF) is presented. The method considers the influence of far field stress,σox, on the value of SIF. The only information needed for KⅠcalculation is the area between isochromatic fringe loops. The method is examined by two kinds of specimen in different load cases. Experimental results show that it is quite simple and of high precision.
