DEFORMATION FIELDS OF INTERFACIAL CRACKS IN ADHESIVELY BONDED DCBS

Deformation fields of interfacial cracks in adhesively jointed double- cantilever beams (DCBs) are investigated by moire interferometry. The deformation field in a macro-scale is found to be characterizable by r emote stress intensity factors and the disturbance of the singular str ess field, due to the presence of the adhesive layer, is localized. Th e moire fringes also provide a means for the determination of remote s tress intensity factors. The effect of the adhesive layer on the loadi ng parameters for adhesively jointed DCBs is studied. Copyright (C) 19 96 Elsevier Science Ltd