摘要
利用带有深裂纹合金钢的三点弯曲试样通过试验方法对一个J积分和三个裂纹尖端张开位移(CTOD)评价公式进行了研究,利用这些评价公式计算J积分和裂纹尖端张开位移(CTOD),可以简化试验装置和设备.研究结果表明:J积分和CTOD既可以根据加载线位移确定,又可以根据裂纹嘴张开位移确定.
Estimation formulas of one J integral and three of CTOD for deeply cracked three point bend specimens of alloy steel were studied through experiment. These formulas offer a means of simplifying the experimental instrumentation when calculating J integral and CTOD. The result shows that J integral and CTOD can be determined using either crack mouth opening or load line displacement.
出处
《武汉化工学院学报》
2004年第1期36-37,41,共3页
Journal of Wuhan Institute of Chemical Technology
关键词
裂纹尖端张开位移
J积分
断裂韧性
crack tip opening displacement
J -integral
fracture toughness
