Analysis of Thin Film Cracking and Buckling on Compliant Substrate by Fragmentation Test
Application of coating fragmentation test for determination of coating properties is considered. A probabilistic model of coating fragmentation under uniaxial tensile loading is applied for coating and interface property identification of thin brittle coating/polymer substrate system. A finite element model is developed to simulate the process of buckle formation in coating strips during fragmentation test. The measured buckle geometry parameters and buckle density evolution as a function of the applied strain is used to estimate the interface toughness.
J. Alfaiate, M.H. Aliabadi, M. Guagliano and L. Susmel
J. Andersons et al., "Analysis of Thin Film Cracking and Buckling on Compliant Substrate by Fragmentation Test", Key Engineering Materials, Vols. 348-349, pp. 329-332, 2007