用光弹性法测双层复合板的应力强度因子  

DETERMINATION OF STRESS INTENSITY FACTOR OF TWO LAYER COMPOSITE STRIPS BY PHOTOELASTICITY

作　　者：陈华丽[1] 高宇立[1] 王全会[1] 

机构地区：[1]西安交通大学

出　　处：《应用力学学报》1990年第1期83-87,133,共5页Chinese Journal of Applied Mechanics

摘　　要：本文用光弹性法分析了双层复合材料结构的裂纹问题,研究了两种不同材料的存在对应力强度因子的影响,以及讨论了由于裂纹不断加深,应力强度因子的变化规律。并与计算的结果作了比较,在裂纹不接近界面情况下,两者结果吻合的较好。In this paper, the crack problem of two layer composite structure is analysed by the photoelastic experimental method. The influence of two different material layers on the stress intensity factors is investigated, and the variational pattern of the stress intensity factors due to increasing crack by degrees is discussed. It is find that the stress intensity factors obtained by the experimental method is corresponding well to the calculating results, except the crack tip is very close to the interface.

关 键 词：光弹性法 复合材料 裂纹 应力强度因子 双层复合板 

分 类 号：TB330.1[一般工业技术—材料科学与工程]