G. Margaritis et al., ELASTIC-PLASTIC FINITE-ELEMENT METHOD ANALYSIS AND APPLICATION OF THEISLAND BLISTER TEST, Journal of adhesion science and technology, 8(3), 1994, pp. 273-287
Finite element method (FEM) modeling of the island blister test (IBT),
which takes into account the possibility of plasticity in the film an
d can separate the normal and shear components of the specific fractur
e energy, is presented. IBT specimens of a polymer film (Ultradel 4212
) on a chromium-coated silicon substrate were prepared and tested usin
g modified procedures which am described. The analysis of the experime
ntal results shows that crack propagation occurs when the mode I compo
nent of the specific fracture energy reaches a critical value.