Force controlled interface elements [1,2] have been used to model crack propagation in an elastic continuum. Direct failure prediction in an elastic continuum, following crack initiation and its subsequent propagation, has been achieved by use of strain tripped elements with energy based unloading [3-5]. The use of these was limited to elastic problems. A local damage based rupture element is developed that can be used for interfacial failure prediction in adhesively bonded structures. The modelling technique accounts for material plasticity and is applicable to both cracked and non-cracked problems under mode-I and mixed mode quasi-static loading. Experimental data obtained from extensive tests of standard fracture specimens have been used to validate the developed technique.

Keywords