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      From test data to FE code: a straightforward strategy for modelling the structural bonding interface

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          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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          Author and article information

          Journal
          Frattura ed Integrità Strutturale
          Gruppo Italiano Frattura
          01 December 2016
          : 11
          : 39
          Article
          6495d2fdd7fd4fcf822db7b6d9de9511
          cb7e96e6-c082-45a2-8cee-77e353353486

          This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          History
          Categories
          Mechanical engineering and machinery
          TJ1-1570
          Structural engineering (General)
          TA630-695

          Materials technology,Materials properties,Materials characterization,Engineering,Civil engineering,Mechanical engineering
          Finite element method,Cohesive law,Mode I crack,Adhesive bonding,Fracture toughness

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