Calibration of fracture parameters by instrumented indentation and test simulation

This paper presents some results recently achieved by the authors in the growing area of fracture mechanics centered on the calibration of cohesive fracture models for quasi-brittle materials, by approaches which combine experimentation, experiment simulation and minimization of the discrepancy between measured and computed quantities. The model calibration technique considered in this study is based on indentation tests, supplemented by the mapping of the residual imprint. The proposed method is shown to be able to identify fracture parameters both for modeling delamination in film-substrate systems and for the fracture characterization of ceramic materials at the micro-scale.