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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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Zou, Zhenmin
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2025Effect of micro-scale fibre uncertainties on the mechanical behaviour of natural/synthetic hybrid fibre compositescitations
- 2024Intra-yarn fibre hybridisation effect on homogenised elastic properties and micro and meso-stress analysis of 2D woven laminae: Two-scale FE modelcitations
- 2024A two‐scale numerical analysis of intra‐yarn hybrid natural/synthetic woven composites
- 2024The static and fatigue failure of co-cured composite joints with two-scale interface tougheningcitations
- 2024Zero-tension fatigue behaviour of co-cured composite step joints with multiscale toughening
- 2024A two-scale numerical analysis of intra-yarn hybridnatural/synthetic woven composites
- 2024Fatigue Characterization of Composite Laminates with Interface Hybrid Toughening Using a Single-Step Joint Configurationcitations
- 2023Micromechanics of intra-laminar hybrid lamina with hollow fibres:
- 2023The effect of hygrothermal ageing on the delamination of Carbon/epoxy laminates with Core-shell rubber nanoparticle and Micro-fibre thermoplastic veil tougheningcitations
- 2023Micromechanics of intra-laminar hybrid lamina with hollow fibres::a RVE model
- 2022On the effect of binders on interlaminar fracture energies and R-curves of carbon/epoxy laminates with non-woven micro-fibre veilscitations
- 2022On the effect of binders on interlaminar fracture energies and R-curves of carbon/epoxy laminates with non-woven micro-fibre veilscitations
- 2022On the R-curve behaviour of carbon/epoxy laminates with core-shell rubber nanoparticle and micro-fibre veil hybrid toughening: Carbon vs PPS veilscitations
- 2022Thermally induced residual micro-stresses in hybrid composite laminates with tow-level fibre hybridization
- 2022Thermally induced residual micro-stresses in hybrid composite laminates with tow-level fibre hybridization
- 2018A computationally efficient cohesive zone model for fatiguecitations
- 2017Frequency-Dependent Cohesive Zone Models for Fatiguecitations
- 2008Analysis of crack propagation in nuclear graphite using three-point bending of sandwiched specimenscitations
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document
Frequency-Dependent Cohesive Zone Models for Fatigue
Abstract
This paper is concerned with a new cohesive zone model (CZM) to better describe the effects of rate and cyclic loading. Rate is known to affect the manner in which cracks propagate in materials, yet there presently exists no rate-dependent cohesive model for fatigue simulation. The frequency of the applied cyclic load is recognised to influence crack growth rates with crack growth significantly different at lower frequencies due to microstructural effects or other damage mechanisms such as creep or corrosion. A rate-dependent trapezoidal cohesive model is presented that has the ability to capture this behaviour and shows slower rates of crack propagation with higher loading frequencies. This is achieved by allowing the cohesive fracture energy to increase with frequency up to a specified limit. On unloading the cohesive model retains material separation, which accumulates with the number of loading cycles, leading to final failure. An experimental fatigue investigation is currently underway to validate the new cohesive model, which has been coded in a UMAT subroutine and implemented in ABAQUS.