Lόpez Jiménez, Francisco and Pellegrino, Sergio (2012) Constitutive modeling of fiber composites with a soft hyperelastic matrix. International Journal of Solids and Structures, 49 (3-4). pp. 635-647. ISSN 0020-7683. doi:10.1016/j.ijsolstr.2011.11.006. https://resolver.caltech.edu/CaltechAUTHORS:20120321-092722311
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Abstract
This paper presents an experimental and numerical study of unidirectional carbon fiber composites with a silicone matrix, loaded transversally to the fibers. The experiments show nonlinear behavior with significant strain softening under cyclic loading. The numerical study uses a plane-strain finite element continuum model of the composite material in which the fiber distribution is based on experimental observations and cohesive elements allow debonding to take place at the fiber/matrix interfaces. It is found that accurate estimates of the initial tangent stiffness measured in the experiments can be obtained without allowing for debonding, but this feature has to be included to capture the non-linear and strain-softening behavior.
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| Additional Information: | © 2011 Elsevier Ltd. Received 22 April 2011. Revised 21 October 2011. Available online 19 November 2011. This study was supported with funding from the Keck Institute of Space Studies at Caltech and an Earl K. Seals fellowship. | |||||||||
| Group: | Keck Institute for Space Studies, GALCIT | |||||||||
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| Subject Keywords: | Fiber composites; Hyperelastic matrix; Strain softening; Random microstructure | |||||||||
| Issue or Number: | 3-4 | |||||||||
| DOI: | 10.1016/j.ijsolstr.2011.11.006 | |||||||||
| Record Number: | CaltechAUTHORS:20120321-092722311 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20120321-092722311 | |||||||||
| Official Citation: | Francisco López Jiménez, Sergio Pellegrino, Constitutive modeling of fiber composites with a soft hyperelastic matrix, International Journal of Solids and Structures, Volume 49, Issues 3–4, February 2012, Pages 635-647, ISSN 0020-7683, 10.1016/j.ijsolstr.2011.11.006. (http://www.sciencedirect.com/science/article/pii/S0020768311003799) | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 29792 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 21 Mar 2012 16:43 | |||||||||
| Last Modified: | 09 Nov 2021 19:30 |
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