应用数学和力学2026，Vol.47Issue(1)：68-78,11.DOI:10.21656/1000-0887.460057
LCR波法的有效检测深度及厚度非均布应力表征方法研究
On the Characterization of Effective Detection Depths and Thickness-Direction Inhomogeneous Stresses With the LCR Wave Method
摘要
Abstract
The longitudinal critically refracted(LCR)wave method demonstrates significant advantages in non-destructive testing of structural stresses.However,the current LCR wave technique lacks a physically meaningful analytical relationship between effective detection depths and excitation frequencies of incident waves,and can-not be applied to measure non-uniform stress distributions along the component thickness.To address these limitations,an analytical expression for the correlation between effective detection depths and excitation fre-quencies in the LCR wave method-based stress measurements,was derived.A stepwise difference algorithm was proposed for characterizing non-uniform stress fields with the LCR wave method,and through numerical simula-tions to validate its effectiveness in measuring inhomogeneous stress distributions.关键词
临界折射纵波/应力检测/有效检测深度/非均布应力Key words
longitudinal critically refracted wave/stress detection/effective detection depth/inhomogeneous stress分类
数理科学引用本文复制引用
张春利,马楠楠,翁艺林,朱军,陈伟球..LCR波法的有效检测深度及厚度非均布应力表征方法研究[J].应用数学和力学,2026,47(1):68-78,11.基金项目
国家自然科学基金重大研究项目(12192210) （12192210）
国家重点研发计划项目(2020YFA0711701) （2020YFA0711701）
浙江省自然科学基金重点项目(LZ25A020007) （LZ25A020007）
浣江实验室"浣江专项"研发项目(KM20220616) （KM20220616）
