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Micromechanics Based Multiscale Modeling of the Inelastic Response and Failure of Complex Architecture Composites

abstract: Advanced composites are being widely used in aerospace applications due to their high stiffness, strength and energy absorption capabilities. However, the assurance of structural reliability is a critical issue because a damage event will compromise the integrity of composite structures and lead to ultimate failure. In this dissertation a novel homogenization based multiscale modeling framework using semi-analytical micromechanics is presented to simulate the response of textile composites. The novelty of this approach lies in the three scale homogenization/localization framework bridging between the constituent (micro), the fiber tow scale (meso), weave scale (macro), and the global response. The multiscale framework, named Multiscale Generalized Method of Cells (MSGMC), continuously bridges between the micro to the global scale as opposed to approaches that are top-down and bottom-up. This framework is fully generalized and capable of modeling several different weave and braids without reformulation. Particular emphasis in this dissertation is placed on modeling the nonlinearity and failure of both polymer matrix and ceramic matrix composites. / Dissertation/Thesis / Ph.D. Aerospace Engineering 2011

Identiferoai:union.ndltd.org:asu.edu/item:9505
Date January 2011
ContributorsLiu, Kuang Chieh (Author), Chattopadhyay, Aditi (Advisor), Mignolet, Marc (Committee member), Jiang, Hanqing (Committee member), Li, Jian (Committee member), Rajadas, John (Committee member), Arizona State University (Publisher)
Source SetsArizona State University
LanguageEnglish
Detected LanguageEnglish
TypeDoctoral Dissertation
Format205 pages
Rightshttp://rightsstatements.org/vocab/InC/1.0/, All Rights Reserved

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