摘要
本文采用光测弹性力学的方法测出内压圆环带二条径向裂纹时的应力场.根据裂纹尖端附近的等差线条纹,计算了裂纹尖端的应力强度因子.并提供一种实现圆环内壁受压的新方法,即在圆环内侧放一过盈芯棒.
Stress field of internal loaded dural ring with two radial cracks are investigated by using photo-elasticity method. Isochromatic patterns near crack tips are obtained and their stress intensity factors calculated. A new approach is proposed in which loaded to inner radius of ring-shaped region by means of core-bar.
关键词
应力强度因子
光弹性
裂纹
圆环域
photo-elasticity, stress intensity factor, crack problem in ring-shaped region.
