METHOD OF MEASURING RESIDUAL STRAIN AND RESIDUAL STRESS IN COMPOSITE MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a method of measuring residual strain and residual stress in a composite material by which a residual strain and a residual stress of a composite material in a micro area can be accurately measured.;SOLUTION: A micro grid 2 is drawn in the periphery of a reinforcement 3 on the surface of the composite material 1 comprising the reinforcement 3 and a base material 5, the reinforcement is pushed out to be removed, the residual strain is measured therein by an electron beam moire method, and the residual stress is measured based on the residual strain.;COPYRIGHT: (C)2005,JPO&NCIPI