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A new approach to the cohesive zone model that includes thermal effects

Ibrahim, GR and Albarbar, A ORCID logoORCID: https://orcid.org/0000-0003-1484-8224 (2019) A new approach to the cohesive zone model that includes thermal effects. Composites Part B: Engineering, 167. pp. 370-376. ISSN 1359-8368

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© 2019 This study presents a cohesive zone model combining mechanical and thermal effects. Thermal stress was added to the Helmholtz free energy density in order to derive a new approach to incremental damage which included the effect of temperature. The developed damage model has been implemented in ABAQUS using the UMAT subroutine and applied of two different specimens; a three-point bending specimen and a Double Cantilever Beam. The effectiveness of the new method was tested for the given specimens at different temperatures. The simulation results revealed that the total energy of the interface element of high strength carbon fiber reinforced plastic increased as its temperature decreased. It is demonstrated that the load-displacement curves obtained from the numerical model for both test specimens were in good agreement with experimental data available in literature.

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