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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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Rolfes, Raimund
Leibniz University Hannover
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2024Evaluating the mechanical behavior of carbon composites with varied ply-thicknesses using acoustic emission measurements
- 2024A thermodynamically consistent physics-informed deep learning material model for short fiber/polymer nanocompositescitations
- 2024Phase-field modeling of fracture in viscoelastic–viscoplastic thermoset nanocomposites under cyclic and monolithic loading
- 2023Analysis of fatigue crack and delamination growth in GFRP composites in tension and compression loading
- 2023Refined Semi-Analytical Framework to Predict the Natural Vibration Characteristics of Bistable Laminatescitations
- 2023A new base of wind turbine noise measurement data and its application for a systematic validation of sound propagation modelscitations
- 2022Effect of moisture on the nonlinear viscoelastic fracture behavior of polymer nanocompsites: a finite deformation phase-field model
- 2022Efficient generation of geodesic random fields in finite elements with application to shell bucklingcitations
- 2021Robust improvement of the asymmetric post-buckling behavior of a composite panel by perturbing fiber paths
- 2020An efficient semi-analytical framework to tailor snap-through loads in bistable variable stiffness laminatescitations
- 2019Evaluation and modeling of the fatigue damage behavior of polymer composites at reversed cyclic loadingcitations
- 2019Progressive Failure Analysis Using Global-Local Coupling Including Intralaminar Failure and Debondingcitations
- 2018Effect of spatially varying material properties on the post-buckling behaviour of composite panels utilising geodesic stochastic fields
- 2018Effect of spatially varying material properties on the post-buckling behaviour of composite panels utilising geodesic stochastic fields
- 2018Experimental characterization and constitutive modeling of the non-linear stress–strain behavior of unidirectional carbon–epoxy under high strain rate loadingcitations
- 2018Analysis of skin-stringer debonding in composite panels through a two-way global-local methodcitations
- 2018A structural design concept for a multi-shell blended wing body with laminar flow control
- 2015An elastic molecular model for rubber inelasticitycitations
- 2014Material Modelling of Short Fiber Reinforced Thermoplastic for the FEA of a Clinching Test
- 2014Investigating the VHCF of composite materials using new testing methods and a new fatigue damage model
Places of action
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article
Analysis of skin-stringer debonding in composite panels through a two-way global-local method
Abstract
According to various experimental results, stiffened panels under compressive loading are prone to debonding between the skin and the flange of the stringer. In this paper, a novel two-way global-local coupling approach is presented that is able to model progressive separation of the skin and stringer in stiffened CFRP panels under compression. The main goal of this methodology is to examine skin-stringer debonding at two levels of accuracy, taking advantage of the fast calculations at the global level and assessing in detail the damage propagation at the local level. First, critical areas are defined in a global model with a standard mesh, and local models with a considerably finer mesh are created by means of a submodeling technique. Secondly, a local model analysis is conducted, in which cohesive elements are applied to simulate debonding. Particularly important is the appropriate information exchange in both directions between the different steps of the coupling analysis. Averaged degraded properties are defined at the local model level and transferred back to the global level. The applied compressive load is increased and induces a progression in skin-stringer separation. The global-local coupling loops are repeated until panel failure occurs. The approach is applied to a case of a representative one-stringer stiffened panel and to a stiffened panel for which test results are available. A good correspondence with reference results and test results demonstrates the effectiveness of the global-local approach presented.