Application of moire interferometry to the analysis of residual stresses in metal-matrix composites

Moire interferometry has been used to observe the in-situ displacement fiel ds in B/Al CFMMC specimen heated to different temperature levels. It is sho wn that the method has potential application in measuring the in-situ resid ual strains developed during processing of metal-matrix composites. Being a whole field method, it is illustrated to be capable of identifying the reg ions of high strain gradients which may be present due to inherent manufact uring defects or may develop during testing.