铝合金材料缺陷检测的磁声电方法
Magneto-acousto-electrical method for defect detection of aluminum alloy materials
吕敬祥 1徐楚雯2
作者信息
- 1. 井冈山大学电子与信息工程学院,江西吉安 343009
- 2. 辽宁工程技术大学电气与控制工程学院,辽宁葫芦岛 125000
- 折叠
摘要
不同的无损检测方法适用于不同的场景,为丰富现有的无损检测方法,本文提出了一种适用于非铁磁材料缺陷检测的磁声电检测新方法.通过COMSOL仿真软件及磁声电检测实验平台,对铝合金材料裂缝缺陷进行检测,对不同缺陷尺寸进行仿真及实验研究,并验证该方法的可行性.仿真结果表明,在缺陷的边界处获得了明显的磁声电缺陷信号.验证了缺陷宽度与缺陷信号的关系,当缺陷宽度L大于波长λ时,缺陷电信号峰值时间t及幅值U均相同,反之,缺陷左、右壁产生的电信号相互叠加.研究表明,实验与仿真结果具有一致性,说明本文提出的磁声电检测新方法能够实现缺陷的高精度检测.
Abstract
Different NDT methods are suitable for different scenarios.In order to enrich the existing NDT methods,this paper proposes a new method of magneto-acousto-electrical inspection for the defects in non-ferromagnetic materials.The crack defects in aluminum alloy materials were detected by COMSOL simulation software and magneto-acousto electrical experimental platform.Simulation and experimental studies were conducted on different defect sizes to validate the feasibility of this method.The simulation results show that clear magneto-acousto-electrical defect signals are obtained at the boundaries of the defects.Furthermore,the relationship between the defect width and the defect signal was verified,indicating that when the defect width L is greater than wavelength λ,the peak time t and amplitude U of the defect electrical signal are the same.On the contrary,the electrical signals generated by the left and right walls of the defect overlap.The research results demonstrate the consistency between the experimental and simulation results,indicating that the proposed magneto-acousto-electrical detection method can achieve high-precision defect detection.
关键词
铝合金/磁声电/无损检测/数值模拟/实验研究Key words
aluminum alloy/magneto-acousto electrical/nondestructive testing/numerical simulation/experimental study引用本文复制引用
基金项目
国家自然科学基金资助项目(51867011)
出版年
2024
NETL
NSTL
万方数据