Estimation of the reinforcement factor xi for calculating the transverse stiffness E2 with the Halpin-Tsai equations using the finite element method
In this work, an estimation of the reinforcement factor n of the Halpin Tsai equations used to calculate the transverse stiffness E2 is provided. An improved estimation of the value xi=2 originally proposed by Halpin and Tsai is given through a set of finite element analyses that consider randomly d...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2015 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/56833 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/56833 |
| Access Level: | acceso abierto |
| Palabra clave: | Reinforcement factor Transverse stiffness Unidirectional lamina Finite element analysis INGENIERIA MECANICA |
| Sumario: | In this work, an estimation of the reinforcement factor n of the Halpin Tsai equations used to calculate the transverse stiffness E2 is provided. An improved estimation of the value xi=2 originally proposed by Halpin and Tsai is given through a set of finite element analyses that consider randomly distributed unidirectional fibers for different volume fractions. The analysis overcomes the original hypothesis of a square array distribution of fibers in the transverse plane. It is concluded that a value of xi=1.5 is a better estimation for the usual volume fractions found in practice for a unidirectional lamina of fiber reinforced composites. |
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