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.


Published in:
Key Engineering Materials, 348-349, 329-332
Year:
2007
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 Record created 2007-06-12, last modified 2018-03-17

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