Non-linear characterization of PP/Twaron laminates based on a model of plasticity with damage
The non-linear stress–strain response of thermoplastic laminates was investigated for a polypropylene matrix composite reinforced with continuous Twaron fibers. Tensile tests were performed on unidirectional composites with a fiber orientation of [0]5, [24]5, [33]5, [45]5 and [90]5 and also on a [±4...
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2011 |
| País: | México |
| Institución: | Centro de Investigación Científica de Yucatán |
| Repositorio: | Repositorio Institucional CICY |
| Idioma: | inglés |
| OAI Identifier: | oai:cicy.repositorioinstitucional.mx:1003/256 |
| Acceso en línea: | http://cicy.repositorioinstitucional.mx/jspui/handle/1003/256 |
| Access Level: | acceso abierto |
| Palabra clave: | info:eu-repo/classification/cti/7 info:eu-repo/classification/cti/33 info:eu-repo/classification/cti/3312 |
| Sumario: | The non-linear stress–strain response of thermoplastic laminates was investigated for a polypropylene matrix composite reinforced with continuous Twaron fibers. Tensile tests were performed on unidirectional composites with a fiber orientation of [0]5, [24]5, [33]5, [45]5 and [90]5 and also on a [±45]2S laminate. The inelastic strains of these materials were described with a modification made to a model of plasticity with damage, originally proposed by Ladeveze (1992). This approach considers the longitudinal plasticity and stiffening behavior of a thermoplastic composite, and models the damaged elastoplastic stress–strain response of the material. The theoretical stress–strain curves and experimental results from the model composites [0]5, [90]5 and [±45]2S were compared, demonstrating that the model can be used as a designing tool for laminated thermoplastic composites. |
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