| People | Locations | Statistics |
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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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Hopmann, Christian
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Characterization and modeling of an epoxy vitrimer based on disulfide exchange for wet filament winding applicationscitations
- 2024Development of an Analytical Model for Predicting the Tensile Modulus of Complex Polypropylene Compoundscitations
- 2023Prozessoptimierte Hybridgarne für den Faserspritzprozess
- 2023Determination of the frequency- and temperature-dependent stiffness and damping properties of thermoplastics for the prediction of the vibration and heating behaviour during ultrasonic weldingcitations
- 2022Development of a high-fidelity framework to describe the process-dependent viscoelasticity of a fast-curing epoxy matrix resin including testing, modelling, calibration and validationcitations
- 2021Advances in Polymer Processing 2020
- 2020Comparative study of the residual stress development in HMDSN-based organosilicon and silicon oxide coatingscitations
- 2020A micromechanical model for loading and unloading behavior of fiber reinforced plastics under cyclic loadingcitations
- 2020Advances in Polymer Processing 2020citations
- 2020Advances in Polymer Processing 2020
- 2019Evaluation and modeling of the fatigue damage behavior of polymer composites at reversed cyclic loadingcitations
- 2019Modeling of pvT behavior of semi-crystalline polymer based on the two-domain Tait equation of state for injection moldingcitations
- 2018Improved homogeneity of plasma and coating properties using a lance matrix gas distribution in MW-PECVDcitations
- 2018Tiefzieh- und Hinterspritzprozess für Kunststoff-Magnesium-Hybridecitations
- 2017Combination technology of deep drawing and back-moulding for plastic/metal hybrid components
- 2015Surface quality of profile extrusion dies manufactured by Selective Laser Melting
- 2015Film stress of amorphous hydrogenated carbon on biaxially oriented polyethylene terephthalatecitations
Places of action
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article
Evaluation and modeling of the fatigue damage behavior of polymer composites at reversed cyclic loading
Abstract
Understanding the composite damage formation process and its impact on mechanical properties is a key step towards further improvement of material and higher use. For its accelerated application, furthermore, practice-related modeling strategies are to be established. In this collaborative study, the damage behavior of carbon fiber-reinforced composites under cyclic loading with load reversals is analyzed experimentally and numerically. The differences of crack density evolution during constant amplitude and tension-compression block-loading is characterized with the help of fatigue tests on cross-ply laminates. For clarifying the evolving stress-strain behavior of the matrix during static and fatigue long-term loading, creep, and fatigue experiments with subsequent fracture tests on neat resin samples are applied. The local stress redistribution in the composite material is later evaluated numerically using composite representative volume element (RVE) and matrix models under consideration of viscoelasticity. The experimental and numerical work reveals the strong influence of residual stresses and the range of cyclic tension stresses to the damage behavior. On the microscopic level, stress redistribution dependent on the mean stress takes place and a tendency of the matrix towards embrittlement was found. Therefore, it is mandatory to consider stress amplitude and means stress as inseparable load characteristic for fatigue assessment, which additionally is influenced by production-related and time-dependent residual stresses. The phenomenological findings are incorporated to a numerical simulation framework on the layer level to provide an improved engineering tool for designing composite structures. © 2019 by the authors.