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Fuzzy Set Approach in the Fatigue Damage Analysis of Composite Structures
Abstract:
In this study, the fatigue damage progress is analyzed both theoretically and experimentally. The cyclic loading causes damage, reducing the strength until the material can no longer sustain even the service loading. The theoretical analysis is associated with the definition of the damage parameter. The detailed analysis is mainly devoted to the consideration of two structural elements, i.e. a rectangular composite plate (made of glass fibre/epoxy resin) with a centrally located circular hole subjected to cyclic tensile and a square plate (made of aramid fiber/epoxy resin) subjected to shear loading. The experiments demonstrate the scatter of results. The fuzzy set analysis has been proposed in order to estimate the uncertainty in the evaluation of critical number of cycles corresponding to the final fatigue damage..
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1041-1046
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September 2014
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© 2014 Trans Tech Publications Ltd. All Rights Reserved
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