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Structural Integrity and Durability of Advanced Composites by Alma Hodzic, Constantinos Soutis, Peter Beaumont

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3

The origins of residual stress and its evaluation in composite materials

N. Zobeiry,  and A. Poursartip     The University of British Columbia, Vancouver, BC, Canada

Abstract

Many factors contribute to the formation of residual stresses in laminated composites, including the mismatch of free strains due to the thermal changes and phase changes during the manufacturing process. In this chapter, the factors that contribute to the development of residual stresses along with the state-of-the-art experimental approaches to measure and/or monitor them are reviewed and discussed. Effects of these stresses including dimensional changes and also the reduction in mechanical performance of the final products are discussed, and mitigation strategies to remedy ...

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