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Cyclic Creep and Recovery Behaviour of Glass Fibre Reinforced Epoxy Composite

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Abstract:

This paper presents the results of an experimental and numerical investigation of the tensile behaviour of glass fibre reinforced epoxy composite for incremental and cyclic creep-recovery load conditions. The proposed constitutive model incorporates linear viscoelasticity coupled with damage and viscoplasticity for prediction of the creep-recovery responses. The material parameters are determined by fitting the experimental results. Scanning electron microscopy (SEM) of composite fracture surfaces is performed to explain the failure mechanisms. A computational algorithm for the integration of the proposed constitutive model at the material point level is derived and implemented into the finite element code ABAQUS. The model predictions are found to be in good agreement with the experimental data.

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Periodical:

Key Engineering Materials (Volumes 577-578)

Pages:

657-660

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.577-578.657

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Online since:

September 2013

Authors:

Martina Lovrenić-Jugović, Zdenko Tonković, Ljerka Slokar

Keywords:

Creep Recovery, Damage, Experiment, Finite Element Analysis (FEA), SEM Analysis, Short-Fiber-Filled Epoxy, Viscoelasticity, Viscoplasticity

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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