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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Bak, Brian Lau Verndal
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024MatrixCraCS: Automated tracking of matrix crack development in GFRP laminates undergoing large tensile strains
- 2023Benchmark test for mode I fatigue-driven delamination in GFRP composite laminatescitations
- 2023Benchmark test for mode I fatigue-driven delamination in GFRP composite laminates: Experimental results and simulation with the inter-laminar damage model implemented in SAMCEFcitations
- 2022Simulation of Wrinkling during Forming of Binder Stabilized UD-NCF Preforms in Wind Turbine Blade Manufacturingcitations
- 2022Delamination toughening of composite laminates using weakening or toughening interlaminar patches to initiate multiple delaminationscitations
- 20213D progressive fatigue delamination model:Deliverable 5.1
- 20213D progressive fatigue delamination model
- 2021A simple MATLAB draping code for fiber-reinforced composites with application to optimization of manufacturing process parameterscitations
- 2021Transition-behaviours in fatigue-driven delamination of GFRP laminates following step changes in block amplitude loadingcitations
- 2021UPWARDS Deliverable D5.4:Report and data on the effect of fatigue loading history on damage development
- 2021A continuum damage model for composite laminatescitations
- 2019Formulation of a mixed-mode multilinear cohesive zone law in an interface finite element for modelling delamination with R-curve effectscitations
- 2019An evaluation of mode-decomposed energy release rates for arbitrarily shaped delamination fronts using cohesive elementscitations
- 2019Experimental characterization of delamination in off-axis GFRP laminates during mode I loadingcitations
- 2017A benchmark study of simulation methods for high-cycle fatigue-driven delamination based on cohesive zone modelscitations
- 2015Progressive Damage Simulation of Laminates in Wind Turbine Blades under Quasistatic and Cyclic Loading
- 2015Simulation Methods for High-Cycle Fatigue-Driven Delamination using Cohesive Zone Models - Fundamental Behavior and Benchmark Studies
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article
Formulation of a mixed-mode multilinear cohesive zone law in an interface finite element for modelling delamination with R-curve effects
Abstract
<p>A constitutive model for an interface finite element is proposed to enable simulation of delamination in composite materials with R-curve effects. The constitutive model is formulated in the framework of cohesive zone modelling (CZM). In essence, a multilinear CZ law with an arbitrary number of line segments is developed. The CZ law seeks to enable constitutive modelling of failure mechanisms on multiple scales within the fracture process zone and reduce conventional a priori assumptions regarding the shape of the CZ law. The CZ law relies on damage mechanics, an equivalent one-dimensional formulation, and criteria for mode interactions to simulate delamination under mixed-mode loading. Special emphasis is put on the derivation of interpolation formulas and a constitutive tangent stiffness tensor for the multilinear formulation. The constitutive model is implemented in the commercial FE program ANSYS Mechanical, for implicit finite element analysis (FEA), using user-programmable features. The implementation is verified through single interface element numerical studies, and its applicability is demonstrated by simulating an experiment of quasi-static delamination showing large-scale fiber bridging in pure mode I DCB glass-fiber epoxy specimens. Experimental measurements and simulation outputs using the novel cohesive element is compared to those of the conventional bi- and trilinear CZ laws.</p>