Influence of manufacturing shrinkage and microstructural features on the strength properties of carbon fibers/PEEK composite material

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Published Sep 22, 2022
DOI https://doi.org/10.3221/IGF-ESIS.62.36

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Evgeny Lomakin
Department of Mechanics and Mathematics, Lomonosov Moscow State University, Russia
Boris Fedulov
Department of Mechanics and Mathematics, Lomonosov Moscow State University, Russia
Alexey Fedorenko
Center for Materials Technologies, Skolkovo Institute of Science and Technology, Russia

Abstract

This research discusses the micromechanical modelling for thermoplastic composite material. Elastoplastic and damage model for PEEK matrix composite with the dependency of properties to stress state is presented. Plasticity initiation conditions and failure criterion are analyzed. The influence of manufacturing residual stresses is considered. All typical engineering experiments for neat PEEK under different stress state are good predicted by the model. Numerical experiment for macro-properties estimation based on micromechanical model is conducted and the results are compared with the test data.

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    Issue
    Vol. 16 No. 62 (2022): October 2022
    Section
    SI: Russian mechanics contributions for Structural Integrity

    How to Cite

    Lomakin, E., Fedulov, B. and Fedorenko, A. (2022) “Influence of manufacturing shrinkage and microstructural features on the strength properties of carbon fibers/PEEK composite material”, Frattura ed Integrità Strutturale, 16(62), pp. 527–540. doi: 10.3221/IGF-ESIS.62.36.
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