EXPERIMENTAL RESEARCH ON THE EFFECT OF CRACKS ON METAL MAGNETIC MEMORY SIGNALS

被引：0
|
作者：
Liu L. [1 ]
Bao S. [1 ]
机构：
[1] College of Civil Engineering and Architecture, Zhejiang University, Zhejiang, Hangzhou
来源：
Gongcheng Lixue/Engineering Mechanics | 2024年 / 41卷 / 05期
关键词：
characteristic parameter; crack; finite element simulation; metal magnetic memory; residual stress;
D O I：
10.6052/j.issn.1000-4750.2022.05.0425
中图分类号：
学科分类号：
摘要：
In order to analyze the influence of cracks in stress concentration region on metal magnetic memory signals, step-to-step loading and tensile tests were carried out on two kinds of rhomboid defect specimens of Q345 steel with and without cracks, and the metal magnetic memory signals on the surface of the specimens after unloading were collected. The residual equivalent stress distribution of the specimens after unloading was obtained by ABAQUS finite element simulation. The distribution and evolution of metal magnetic memory signals were compared and analyzed, and four characteristic parameters reflecting the distortion degree of metal magnetic memory signals were extracted. The results show that the metal magnetic memory signals can reflect the evolution process of residual stress propagation, and the distribution characteristics of the metal magnetic memory signals will change due to the existence of cracks. Quantitative analysis of the characteristic parameters of metal magnetic memory signals shows that the existence of cracks does not change the overall law of the distortion degree of the metal magnetic memory signals with the increase of applied load, but both the distortion degree of metal magnetic memory signals and its rate will increase with the increase of load. © 2024 Tsinghua University. All rights reserved.
引用
收藏
页码：247 / 256
页数：9
相关论文
共 26 条
  • [1] WANG Yuanqing, GU Haoyang, LIAO Xiaowei, Experimental study on the shear fatigue behavior of steel structure fillet welds at low temperature, Engineering Mechanics, 37, 1, pp. 73-79, (2020)
  • [2] TONG Lewei, NIU Lichao, REN Zhenzhen, Et al., Experimental study on fatigue strength of welded joints of high strength steel Q550D, Engineering Mechanics, 38, 12, pp. 214-222, (2021)
  • [3] BAN Huiyong, MEI Yixiao, SHI Yongjiu, Research advances of stainless-clad bimetallic steel structures, Engineering Mechanics, 38, 6, pp. 1-23, (2021)
  • [4] WANG Linrui, WANG Kai, HE Naijun, Et al., Application of X-ray digital imaging technology in the quality inspection of casting and alloys, Foundry Technology, 42, 10, pp. 891-894, (2021)
  • [5] CHEN Meng, JIA Yiming, CHEN Gengye, Et al., Research on the damage condition of reinforced concrete filled steel tubes under axial load using ultrasonic testing, Engineering Mechanics, 36, 10, pp. 172-179, (2019)
  • [6] YANG Lijian, GENG Hao, GAO Songwei, Magnetic flux leakage internal detection technology of the long distance oil pipeline, Chinese Journal of Scientific Instrument, 37, 8, pp. 1736-1746, (2016)
  • [7] SHEN G T, SHEN Y N., Study on the characteristics of magneto acoustic emission for mild steel fatigue, Philosophical Transactions of the Royal Society A:Mathematical, Physical and Engineering Sciences, 378, 2182, (2020)
  • [8] DUBOV A A., A study of metal properties using the method of magnetic memory [J], Metal Science and Heat Treatment, 39, 9, pp. 401-405, (1997)
  • [9] WANG Wei, ZENG Farong, SU Sanqing, Et al., Experimental research on magnetic-mechanical effectiveness of bending steel beam based on metal magnetic memory, Journal of Materials Science & Engineering, 34, 1, pp. 109-114, (2016)
  • [10] YAO Kai, WANG Zhengdao, DENG Bo, Et al., Numerical study on metal magnetic memory technique, Engineering Mechanics, 28, 9, pp. 218-222, (2011)
123