Multiaxial loading on a 3D woven carbon fiber reinforced plastic composite using tensile-torsion tests : Identification of the first damage envelope and associated damage mechanisms
| Autor: | Julien Schneider, Nicolas Tableau, Kamel Khellil, Frédéric Laurin, Zoheir Aboura |
|---|---|
| Přispěvatelé: | Safran Aircraft Engines, Roberval (Roberval), Université de Technologie de Compiègne (UTC), DMAS, ONERA, Université Paris Saclay (COmUE) [Châtillon], ONERA-Université Paris Saclay (COmUE) |
| Rok vydání: | 2019 |
| Předmět: |
[PHYS]Physics [physics]
chemistry.chemical_classification Digital image correlation Materials science Composite number Torsion (mechanics) 02 engineering and technology Polymer first damage envelopes Fibre-reinforced plastic 021001 nanoscience & nanotechnology damage mechanisms [SPI]Engineering Sciences [physics] 020303 mechanical engineering & transports 0203 mechanical engineering Acoustic emission chemistry 3D woven composite with polymer matrix Multi-axial loading Ultimate tensile strength Ceramics and Composites Composite material 0210 nano-technology Civil and Structural Engineering |
| Zdroj: | Composite Structures Composite Structures, Elsevier, 2019, 227, pp.111305. ⟨10.1016/j.compstruct.2019.111305⟩ |
| ISSN: | 0263-8223 |
| Popis: | International audience; This study focuses on the experimental identification of the first damage envelope in a 3D woven composite with polymer matrix, under multi-axial loadings including combined in-plane tension and out-of-plane shear loadings (σ-τ envelopes). Proportional Tensile-Torsion tests on rectangular bars were performed to induce different multi-axial stress states. To enable envelopes identification, onset of the first damage has been evaluated thanks to the correlation of various and complementary investigation measurement techniques, such as Stereo-Digital Image Correlation (Stereo-DIC), Acoustic Emission (AE) and in-situ microscopic observations. In addition, a specific data reduction process has been used to manage accurate quantification of the stress state induced by the multi-axial loadings. Based on these findings, both σ 11-τ 13 and σ 22-τ 23 envelopes were identified on a 3D woven 2 composite material with polymer matrix. Using microscopic observations, damage mechanisms (type and localization) related to the multi-axial loadings were identified. In addition, thanks to the strain fields measured by the Stereo-DIC on the material surface, particular relations between the multi-axial loadings and the 3D woven architecture have been established. KEYWORDS: 3D woven composite with polymer matrix, Multi-axial loading, first damage envelopes, damage mechanisms. |
| Databáze: | OpenAIRE |
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