Modelling the Non-Linear Viscoelastic and Viscoplastic Behaviour of Aramid Fibre Yarns
作者： E. Chailleux , P. Davies
DOI: 10.1023/B:MTDM.0000007199.01142.F8
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摘要: A non-linear viscoelastic viscoplastic model is proposed for the tensilebehaviour of aramid fibres, based on an analysis deformationmechanisms these materials. This uses macroscopicformulation developed by Schapery together with plasticity conceptof Perzyna. simple identification procedure parametershas been using creep/recovery cycles at different load levels.The reveals that two four parameters theviscoelastic (g 1 and a σ) are independent stresslevel. may be due to regular nature fibrestructure. The enables which characterise thenon-linear reversible viscoelasticity identified independentlyfrom those viscoplasticity. predictionsare compared experimental data more complex sequence andreasonable correlation obtained.
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