Abstract: The stress state and its singularity at the edge of the interface in a bondedbimaterial beam is investigated experimentally by moire interferometry and localized bybridmethod.The bimaterial beam is made of CR-39 and epoxy resin, which glued byan epoxyadhesive.The sensitivity of moire interferometry experiment is 0.41 7μm.The localizedhybrid method,which combine the moire inferometry and finite element method,is usedto evaluate the experimental results from displacements to stresses.For comparing theexperime...