基于磁力机械合效应的铁磁材料的elasto-塑料变形的电磁非破坏性测试技术的数值模拟
Xiangyi Hu1, Xiaoqiang Wang1, Haichao Cai1
1School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471003, China.
Sensors (Basel, Switzerland)
|November 27, 2024
概括
本研究引入了一种新的磁力机械模型和电磁非破坏性测试 (ENDT) 的合方法,以准确模拟在elasto-plastic变形下的信号. 这些发现提高了对经历压力和应变的材料的定量ENDT准确性.
科学领域:
- 材料科学 材料科学 材料科学
- 电磁主义 电磁主义
- 非破坏性测试是一种非破坏性测试.
背景情况:
- 在电磁非破坏性测试 (ENDT) 中的定量分析受到缺乏有效的构成模型的限制.
- 模拟ENDT信号需要强大的数值工具来研究检测机制并提高效率.
研究的目的:
- 为ENDT开发一种新的磁力机械模型,该模型可以解释相对透度对elasto-plastic变形的依赖.
- 为了建立一个可靠的有限元-无限元合方法,用于ENDT模拟.
- 研究和量化弹性塑性变形对磁流信号的影响.
主要方法:
- 提出了一个新的磁力机械构成模型,其中包含了elasto-plastic变形效应.
- 实施了有限元-无限元合方法,以克服传统模拟边界的限制.
- 使用TEAM问题7验证了合方法,并根据实验中的elasto-plastic变形数据对拟议模型进行了验证.
主要成果:
- 已建立的定量模型将磁流信号 (Bzpp) 与弹性应力 (高压触点) 和塑性变形 (指数函数) 相关联.
- 分析了在elasto-plastic变形下磁流信号变化的机制,确定域壁钉作为主要原因.
- 证明了拉斯托塑性变形对短暂的磁流信号产生重大影响.
结论:
- 开发的磁力机械模型和合方法在elasto-plastic条件下准确模拟ENDT信号.
- 这些发现为提高定量ENDT的准确性提供了关键的见解,特别是在承受应力和应变的材料中.
- 了解域壁钉的作用是解释弹性塑料材料信号变化的关键.
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