摘要
推导了CTOD和J积分的关系,并且从试验角度利用三点弯曲试样进行CTOD试验,根据ASTM E1820对GB/T 21143—2014中公式34进行了评价,研究表明,在小屈服范围内,采用裂纹嘴张开位移可以同时得到CTOD和J积分,从而可以简化J积分的试验装置。
The relationship between CTOD and J integral were derivated. The formulas 34 of GB/T 21143-2014 was evaluated based on the ASTM E1820-2015 using the CTOD experiments of the three-point bending specimens. It showed that in a small yield range,the CTOD and J integral could be obtained at the same time using the crack opening displacement,which could simplify the experimental equipment for J integral.
出处
《物理测试》
CAS
2017年第3期52-54,共3页
Physics Examination and Testing
关键词
J积分
CTOD
小屈服
J integral
CTOD
small yield range
