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Effects of Interface Treatment on the Fatigue Behavior of Shape Memory Alloy Reinforced Polymer Composites

Hiremath, SR and Harish, K and Vasireddi, Ramakrishna and Benal, MM and Mahapatra, Roy D (2015) Effects of Interface Treatment on the Fatigue Behavior of Shape Memory Alloy Reinforced Polymer Composites. In: Conference on Behavior and Mechanics of Multifunctional Materials and Composites, MAR 09-11, 2015, San Diego, CA.

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Official URL: http://dx.doi.org/ 10.1117/12.2182279

Abstract

Interfacial properties of Shape Memory Alloy (SMA) reinforced polymer matrix composites can be enhanced by improving the interfacial bonding. This paper focuses on studying the interfacial stresses developed in the SMA-epoxy interface due to various laser shot penning conditions. Fiber-pull test-setup is designed to understand the role of mechanical bias stress cycling and thermal actuation cycling. Phase transformation is tracked over mechanical and thermal fatigue cycles. A micromechanics based model developed earlier based on shear lag in SMA and energy based consistent homogenization is extended here to incorporate the stress-temperature phase diagram parameters for modeling fatigue.

Item Type: Conference Proceedings
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Additional Information: Copy right for this article belongs to the SPIE-INT SOC OPTICAL ENGINEERING, 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
Keywords: SMA composite; fiber pull-out; shear lag; interface; laser peening; microstructure; deboning; fatigue
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 19 Jul 2015 09:24
Last Modified: 19 Jul 2015 09:24
URI: http://eprints.iisc.ernet.in/id/eprint/51833

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