一种基于线性回归的多变量超声波非破坏性评估方法,用于描述接的拉伸强度特性
Dazhao Chi1, Ziming Wang1, Haichun Liu2
1State Key Laboratory of Precision Welding & Joining of Materials and Structures, Harbin Institute of Technology, Harbin 150001, China.
Materials (Basel, Switzerland)
|May 14, 2025
概括
本研究引入了一种超声波方法,以非破坏性地评估接的拉伸强度. 开发的模型达到76.3%的准确性,为现有结构的破坏性测试提供了一个有希望的替代方案.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 非破坏性测试和评估 (NDT&E)
背景情况:
- 破坏性测试是接抗拉强度的标准,但对于正在使用的结构是不切实际的.
- 非破坏性测试和评估 (NDT&E) 为现场特性提供了一个解决方案.
- 现有的NDT&E方法需要改进,以准确评估接属性.
研究的目的:
- 提出并验证一种基于超声波的非破坏性方法,用于评估X80钢管中的接拉伸强度.
- 使用声信号特征建立接抗拉强度的预测模型.
- 引入用于快速接特征的分级评估模型.
主要方法:
- 在接的X80钢管上从240个测量点收集了声信号.
- 处理信号以提取超声波特征参数.
- 开发了一种基于多变量回归 (MLR) 的模型,使用超声波和破坏性测试数据来预测拉伸强度.
- 实施了用于接特征的分级评估模型.
主要成果:
- 建立了一个多变量回归模型来预测接的抗拉强度.
- 该分级评估模型在240个测量点实现了76.3%的精度.
- 拟议的超声波方法表明了对非破坏性接拉伸强度评估的潜力.
结论:
- 基于超声波的NDT&E方法为破坏性测试提供了一个可行的替代方案,用于测试接拉伸强度.
- 目前的MLR模型显示出有希望的准确性,但可以改进.
- 未来的工作应该探索深度学习方法,以提高接抗拉强度的预测准确性.
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