摘要
采用紧凑拉伸剪切断裂试样（ＣＴＳ），对轴承钢ＧＣｒ１５进行了（Ⅰ＋Ⅱ）混合型断裂试验。试验结果表明，近似符合双参数ＫⅠＣ，ＫⅡＣ的椭圆规律，裂纹扩展开裂角θ０与裂尖塑性区的形状有关。
By use of compact tension shear specimen(CTS),the mixed mode(Ⅰ+Ⅱ)fracture testfor bearing steeI GCr15 was carried out.As experimental resuIts show,it accords with ellip-tical law hy biparaD:1eter KⅠc and KⅡc approximately,and the crack propagation initiation an-gle θo relates to the shape of the plastic zone near crack tip.
出处
《太原重型机械学院学报》
1994年第1期50-56,共7页
Journal of Taiyuan Heavy Machinery Institute
关键词
轴承钢
混合型断裂
断裂试验
bearing steel
(Ⅰ+Ⅱ)mixed mode fracture
crack propagation initlationangle
combined fracture theory
plastic zone near crack tip
