超声冲击处理焊接接头缺口应力集中系数研究
Study on Notch Stress Concentration Factor of Welded Joint by Ultrasonic Impact Treatment
郭荣岩 1汪洋 1李涛 1甘进2
作者信息
- 1. 武汉理工大学土木工程与建筑学院,武汉 430070
- 2. 武汉理工大学船海与能源动力工程学院,武汉 430063
- 折叠
摘要
基于ABAQUS有限元分析,将钢十字形焊接接头形状参数和超声冲击参数与缺口应力集中系数建立直接联系,分析不同参数组合下超声冲击处理效果以及冲击后缺口应力集中系数的变化,拟合得到焊接接头超声冲击处理后缺口半径ρ、凹槽深度h、缺口应力集中系数Kt的计算公式.结果表明,该公式拟合程度较好,可用于预测超声冲击处理后十字形钢焊接接头的缺口应力集中系数.
Abstract
Based on ABAQUS finite element analysis,a direct relationship between the shape parameters and ultrasonic impact parameters of the steel cruciform welded joint and the notch stress concentration factor was established.The effect of ultrasonic impact treatment under different parameter combinations and the influence of the notch stress concentration factor after impact were analyzed,and the calculation formulas for the notch radius ρ,notch depth h,and notch stress con-centration factor Kt of the welded joint after ultrasonic impact treatment were fitted.The results show that the formula fits well and can be used to predict the notch stress concentration factor of cruciform welded joints after ultrasonic impact treatment.
关键词
有限元分析/十字形焊接接头/超声冲击处理/缺口应力集中系数Key words
finite element analysis/cruciform welded joints/ultrasonic impact treatment/notch stress concen-tration factor引用本文复制引用
基金项目
国家自然科学基金(51908437)
中央高校基本科研业务费专项(2020IVB009)
中央高校基本科研业务费专项(2019IVA024)
出版年
2024
NETL
NSTL
万方数据