A method to determine composite material residual tensile strength in the fibre direction as a function of the matrix damage state after fatigue loading
| Autor: | Thierry Palin-Luc, Damien Caous, Julien Valette, Jean-Christophe Wahl, Christophe Bois |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Composite number Composite 02 engineering and technology Residual Industrial and Manufacturing Engineering Ply Mécanique: Génie mécanique [Sciences de l'ingénieur] 0203 mechanical engineering Damage mechanics Ultimate tensile strength Composite material Mécanique: Mécanique des structures [Sciences de l'ingénieur] Fatigue business.industry Mechanical Engineering Mécanique: Matériaux et structures en mécanique [Sciences de l'ingénieur] Function (mathematics) Structural engineering Composite laminates 021001 nanoscience & nanotechnology Residual strength 020303 mechanical engineering & transports Mechanics of Materials Fatigue loading Ceramics and Composites Strength 0210 nano-technology business Lamina |
| Popis: | The phenomenon of residual strength in composite laminates after fatigue loading has been studied for decades but is generally expressed as a function of the number of cycles applied to the specimens. Phenomenological laws deduced from these tests are therefore loading dependent and identifying a valid model for any loading condition of a given laminate requires long fatigue testing campaigns. To overcome this difficulty, a testing procedure is proposed to express the residual tensile strength of a unidirectional ply in the fibre direction, as a function of its matrix damage. The resulting behaviour is then independent of the imposed loading and can be determined by only a few fatigue tests. Experimental results obtained on glass-epoxy non-crimp fabric laminates are presented and analysed. |
| Databáze: | OpenAIRE |
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