An analysis of delamination for a thin elastic film, attached to a substrate a corner, is carried out. The film is in compression and the analysis is performed by combining results from fracture mechanics and the theory of thin shells. The results show a very strong dependency of the angle of the corner. In contrast with earlier results for delamination on a flat substrate, the present problem ...

Crack-like objects that propagate along frictional interfaces, i.e. shear cracks, play a major role in broad range of phenomena. Such cracks are commonly assumed to feature the universal square root near-edge singularity ideal as predicted by Linear Elastic Fracture Mechanics. Here we show this is not generic case due intrinsic dependence strength on slip rate, even if bodies forming interface ...

Recent three-point bend tests of size effect on the strength of geometrically scaled sandwich beams of three types – with no notches, and with notches at the upper or lower skin–foam interface, which were previously evaluated using simplified sandwich beam theory and equivalent linear elastic fracture mechanics, are now reanalyzed more accurately by finite elements. Zero-thickness interface ele...