拉应力对不同厚度Q345钢磁记忆信号的影响

付美礼; 包胜; 柏树壮; 顾益斌; 胡盛楠

doi:10.11918/j.issn.0367-6234.201606099

Chinese

您当前的位置：

首页 >

文章列表页 >

拉应力对不同厚度Q345钢磁记忆信号的影响

更新时间：2026-10-23

- 拉应力对不同厚度Q345钢磁记忆信号的影响
- Influence of tensile stress on magnetic memory signal in Q345 steel with different thicknesses
- 哈尔滨工业大学学报 2017年49卷第6期页码：2017-6
- 作者机构：
  
  浙江大学结构工程研究所,杭州,310058
- 作者简介：
- 基金信息：
  
  浙江省自然科学基金(LZ12E08003);中央大学基础研究基金(2015QNA4028)
- DOI：10.11918/j.issn.0367-6234.201606099
  中图分类号： TG115.28
- 纸质出版：2017
- 稿件说明：
移动端阅览
付美礼, 包胜, 柏树壮, 等. 拉应力对不同厚度Q345钢磁记忆信号的影响[J]. 哈尔滨工业大学学报, 2017,49(6):2017-6.

FU Meili, BAO Sheng, BAI Shuzhuang, et al. Influence of tensile stress on magnetic memory signal in Q345 steel with different thicknesses[J]. 2017, 49(6): 2017-6.
付美礼, 包胜, 柏树壮, 等. 拉应力对不同厚度Q345钢磁记忆信号的影响[J]. 哈尔滨工业大学学报, 2017,49(6):2017-6. DOI： 10.11918/j.issn.0367-6234.201606099.

FU Meili, BAO Sheng, BAI Shuzhuang, et al. Influence of tensile stress on magnetic memory signal in Q345 steel with different thicknesses[J]. 2017, 49(6): 2017-6. DOI： 10.11918/j.issn.0367-6234.201606099.

摘要

为明确磁记忆信号与拉应力之间的对应关系和几何尺寸对试件表面磁场的影响，对Q345低合金钢不同厚度板状试件进行静载拉伸实验.利用TSC-1M-4型磁检测仪，研究3种厚度的光滑试件表面磁记忆信号在不同拉应力下的变化规律.结果表明：弹性阶段磁记忆信号与拉应力之间有较好的相关性，塑性阶段两者相关性较弱；切向磁记忆信号对试件局部屈服的表征比法向磁记忆信号更敏感，利用切向磁场的畸变性可预判试件的早期塑性变形和应力集中区；同一应力水平下，试件表面磁场强度随厚度增加而减小，但不影响其变化规律.

Abstract

To determine the relationship between magnetic memory signal and tensile stress and the influence of geometric size of the specimen on the surface magnetic field

static tensile tests on plate specimens made of Q345 low alloy steel with different thicknesses were performed. The variation regularities of surface magnetic signals of specimens with three thicknesses under different tensile stresses were investigated using the magnetometer TSC-1M-4. The test results show that the magnetic memory signal is positively correlated with tensile stress in the elastic stage but weakly correlated in the plastic stage. Compared with the normal component

the tangential component is more sensitive in characterizing the local yielding of the specimen. The early plastic deformation and stress concentration zone can be predicted via the abnormal magnetic change of the tangential component. Under the same stress level

the specimen thickness has a negative correlation with the surface magnetic intensity and no influence on the variation trend.

关键词

Keywords

references

浏览量

1107

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

塑性变形条件下拉伸构件的磁记忆效应

YT01低能量多碰塑性变形研究

积分中值屈服准则解析厚板轧制椭圆速度场

考虑代价敏感性的增量式入侵检测机制

融合CBAM的双向递归门控残差图像Copy-Move篡改检测