基于 3 种断裂韧性测试方法的试验分析

doi:10.12066/j.issn.1007-2861.2429

上海大学学报(自然科学版) ›› 2023, Vol. 29 ›› Issue (4): 786-795.doi: 10.12066/j.issn.1007-2861.2429

基于 3 种断裂韧性测试方法的试验分析

王永东¹ , 包陈² , 宁冬¹ , 王谊清¹ , 景益¹ , 浦承皓³

1. 上海核工程研究设计院有限公司, 上海 200233; 2. 西南交通大学, 四川成都 610031; 3. 生态环境部核与辐射安全中心, 北京 100082

收稿日期:2021-11-12 出版日期:2023-08-30 发布日期:2023-09-01
通讯作者: 浦承皓 (1987—), 男, 高级工程师, 研究方向为核安全设备审评等.
基金资助:
国家科技重大专项资助项目 (2018ZX06004002)

Experimental analysis based on three fracture toughness test methods

WANG Yongdong ¹ , BAO Chen² , NING Dong ¹ , WANG Yiqing ¹ , JING Yi ¹ , PU Chenghao ³

1. Shanghai Nuclear Engineering Research and Design Institute Co., Ltd., Shanghai 200233, China; 2. Southwest Jiaotong University, Chengdu 610031, Sichuan, China; 3. Nuclear and Radiation Safety Center of the Ministry of Ecological Environment, Beijing 100082, China

Received:2021-11-12 Online:2023-08-30 Published:2023-09-01

摘要/Abstract

摘要：

归纳总结了 3 种 J 积分测试方法, 即卸载柔度法、规则化法和 S_pb 分离参数法测量断裂韧性的原理, 并针对某金属材料分别采用 3 种方法进行了对比测试. 发现 3 种方法均可以获得有效的 J_IC 值, 由卸载柔度法得到的 J_IC 值最大, 由规则化法得到的 J_IC 值最小, 但与 S_pb分离参数法较为接近.

关键词: 断裂韧性, 阻力曲线, 有效性判定

Abstract:

The theories of fracture toughness measurement for three J-integral test methods, including unloading compliance method, normalization method and S_pb separation parameter method, are summarized, and the three methods are used to test the fracture toughness of a metal material. It is found that all the three methods can obtain eﬀective J_IC values. The J_IC value obtained by the unloading compliance method is slightly greater than those obtained by the other two methods, and the result obtained by the normalization method is slightly smaller than those obtained by the other two methods but close to that by the S_pb separation parameter method.

Key words: fracture toughness, resistance curve, validity judgment

中图分类号:

O 341

王永东, 包陈, 宁冬, 王谊清, 景益, 浦承皓. 基于 3 种断裂韧性测试方法的试验分析[J]. 上海大学学报(自然科学版), 2023, 29(4): 786-795.

WANG Yongdong , BAO Chen , NING Dong , WANG Yiqing , JING Yi , PU Chenghao . Experimental analysis based on three fracture toughness test methods [J]. Journal of Shanghai University（Natural Science Edition）, 2023, 29(4): 786-795.

基于 3 种断裂韧性测试方法的试验分析

Experimental analysis based on three fracture toughness test methods

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