An Inverse Boundary Element Method for Finding Boundary Tractions of an Elastic Body

탄성체의 경계 하중을 구하기 위한 역경계요소법

  • 이상훈 (서울산업대학교 에너지환경대학원) ;
  • 김현규 (서울산업대학교 기계공학과)
  • Received : 2009.02.10
  • Accepted : 2009.06.09
  • Published : 2009.06.30

Abstract

Most of structural analyses are concerned with the deformation and stress in a body subjected to external loads. In many fields, however, the interpretation of inverse problems is needed to determine surface tractions or internal stresses from measured displacements. In this study, the inverse processes by using the boundary element method are formulated for the evaluation of boundary tractions from displacements measured on a remote surface. Small errors in measured displacements often result in a substantial loss of accuracy of an inverse system. Numerical results show that the error in reconstructed tractions by using the inverse boundary element methods is sensitive to measurement location and noise.

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