メッシュの規則性を用いた超音波非破壊評価のためのBIEMアルゴリズムの改良

抄録

This paper discusses a three dimensional implementation of boundary integral equation method (BIEM) for large scale time domain elastodynamic problems and its application to ultrasonic quantitative nondestructive evaluation (QNDE). We use a regular mesh in order to reduce the computational time and memory requirements for solving the large scale problem. We show the efficiency of the proposed method by applying it to a simple wave propagation problem and to a realistic laser-ultrasonic QNDE problem.