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Examination of the Delamination of a Stitched Laminated Composite with Experimental and Numerical Analysis Using Mode I Interlaminar

Abstract : To examine the crack propagation in quasi-brittle materials, cohesive models have been suggested by the works of researcher. They treat the existence of a process zone at the crack tip, with a suitable constitutive law, linking the tensile normal stress T and the relative displacement among the two crack edges. In this paper, we employed the cohesive model which examines the mode I interlaminar fracture into stitched reinforced composite laminates. The test configuration that we used in this study was a stitched reinforced double cantilever beam samples. A bilinear damage-rate-dependent cohesive traction-separation law is implemented to design the woven composite fracture and discrete nonlinear spring elements to characterize the stitches influence, its advantages and disadvantages. A novel macroscopic law adopted from a 1D micromechanical-stitching model is invented to model the stitches effect along the interface. The numerical simulations of double cantilever beam test with the present model present a significant agreement compared to the experimental results.
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Submitted on : Thursday, May 28, 2020 - 11:49:40 AM
Last modification on : Wednesday, March 16, 2022 - 3:44:07 AM

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Mostapha Tarfaoui, Lotfi Hamitouche, Sabrine Khammassi, Owaissur Shah. Examination of the Delamination of a Stitched Laminated Composite with Experimental and Numerical Analysis Using Mode I Interlaminar. Arabian Journal For Science and Engineering, 2020, ⟨10.1007/s13369-020-04599-z⟩. ⟨hal-02639340⟩

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