DEVELOPMENT OF BOUNDARY CONDITION ESTIMATION METHOD BASED ON THE RECONSTRUCTION OF WAVEFIELD USING FUNDAMENTAL SOLUTIONS

Abstract

 This paper presents an inverse analysis method for estimating boundary conditions in a linear elastic body. The proposed method reconstructs the anti-plane wavefield using fundamental solutions and observation information. The reconstructed wavefield provides boundary values, including displacement and traction, and is utilized to estimate the boundary condition. In the estimation computation, our proposed method uses linear equations only, though other inverse analysis methods require nonlinear equations. To demonstrate the efficacy of our proposed method, we applied it to boundary condition estimation problems in both elastic halfspace and a finite domain. The validity of our proposed method is confirmed through the numerical results.