摘要
在单试样卸载柔度法及单试样三曲线法基础上 ,提出了一种更简便的测定金属材料 JR曲线及其条件起裂值的单试样三点柔度法 ,并用该方法测定了 1Cr1/2 Mo钢、16Mn R钢和 WCF 62钢的 JR曲线及其条件起裂值 ,与标准的多试样法相比 。
Based on the method of three curves and unloading compliance,a simple new method is proposed for measuring J resistance curves of metallic materials.The measurment of J resistance curves and their proofs values at crack initiations were carried out using 1Cr1/2Mo、WCF62 and 16MnR steels.The results of the single specimen are in agreement with those of the standard multi specimen method.The errors are within the allowable range in engineering.
出处
《山东冶金》
CAS
2000年第2期40-42,共3页
Shandong Metallurgy
基金
甘肃省自然科学基金! ZR-97-0 3 7
关键词
单试样三点柔度法
金属材料
JR曲线
条件起裂值
fracture toughness
J integral
resistance curve
single specimen
extension curve
compliance
