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Verification and Validation of a Three-Dimensional Orthotropic Plasticity Constitutive Model Using a Unidirectional Composite

School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85287, USA
NASA Glenn Research Center, Cleveland, OH 44135, USA
George Mason University, Fairfax, VA 22030, USA
Livermore Software Technology Corporation, Livermore, CA 94551, USA
Author to whom correspondence should be addressed.
Academic Editors: John W. Gillespie and Subramani Sockalingam
Fibers 2017, 5(1), 12;
Received: 22 January 2017 / Revised: 15 February 2017 / Accepted: 1 March 2017 / Published: 4 March 2017
(This article belongs to the Special Issue Polymer Fibers)
PDF [5323 KB, uploaded 4 March 2017]


A three-dimensional constitutive model has been developed for modeling orthotropic composites subject to impact loads. It has three distinct components—a deformation model involving elastic and plastic deformations; a damage model; and a failure model. The model is driven by tabular data that is generated either using laboratory tests or via virtual testing. A unidirectional composite—T800/F3900, commonly used in the aerospace industry, is used in the verification and validation tests. While the failure model is under development, these tests indicate that the implementation of the deformation and damage models in a commercial finite element program, LS-DYNA, is efficient, robust and accurate. View Full-Text
Keywords: orthotropic composite; plasticity; damage; impact modeling orthotropic composite; plasticity; damage; impact modeling

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Hoffarth, C.; Khaled, B.; Shyamsunder, L.; Rajan, S.; Goldberg, R.; Carney, K.S.; DuBois, P.; Blankenhorn, G. Verification and Validation of a Three-Dimensional Orthotropic Plasticity Constitutive Model Using a Unidirectional Composite. Fibers 2017, 5, 12.

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