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M. A. Lepore M. Perrella

Abstract

A straightforward methodology for modelling the cohesive zone (CZM) of an adhesively bonded joint is developed, by using a commercial finite element code and experimental outcomes from standard fracture tests, without defining a damage law explicitly. The in-house developed algorithm implements a linear interpolated cohesive relationship, obtained from literature data, and calculates the damage at each step increment. The algorithm is applicable both to dominant mode I or dominant mode II debonding simulations. The hypothesis of unloading stages occurrence is also considered employing an irreversible behaviour with elastic damaged reloading. A case study for validation is presented, implementing the algorithm in the commercial finite element method (FEM) software Abaqus®. Numerical simulation of dominant mode I fracture loading provides with satisfactory results.

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    How to Cite

    Lepore, M. A. and Perrella, M. (2016) “From test data to FE code: a straightforward strategy for modelling the structural bonding interface”, Frattura ed Integrità Strutturale, 11(39), pp. Pages 191–201. doi: 10.3221/IGF-ESIS.39.19.