Constitutive model for large strain deformation of semicrystalline polymers
Holmes, D.W., Loughran, J.G., and Suehrcke, H. (2006) Constitutive model for large strain deformation of semicrystalline polymers. Mechanics of Time Dependent Materials, 10 (4). pp. 281-313.
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A constitutive model for large strain deformation of semicrystalline polymers has been formulated to predict the complex elasto-viscoelastic-viscoplastic material response. The general form of this model can be represented by three parallel rheological components corresponding to each of the modes of deformation. It will be shown that such a configuration is well suited to the mechanical nature of polymers as observed in recent studies. The constitutive stress-strain-time relationships are drawn from continuum mechanics which are more suitable than simple linear expressions from rheology. The result is a large strain, fully three-dimensional constitutive model, derived from a thermodynamic basis. The proposed model can be fit to macroscopic experimental data and is highly suited to numerical analysis. The paper reviews the literature relevant to constitutive representation of semicrystalline polymers, provides conclusion and validation of the most suitable form of constitutive model and presents the relevant constitutive mathematics.
|Item Type:||Article (Refereed Research - C1)|
|Keywords:||elasto-viscoelastic-viscoplastic, semicrystalline polymers, constitutive mathematics, rheological model|
|FoR Codes:||09 ENGINEERING > 0912 Materials Engineering > 091209 Polymers and Plastics @ 40%|
09 ENGINEERING > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation @ 40%
09 ENGINEERING > 0913 Mechanical Engineering > 091308 Solid Mechanics @ 20%
|SEO Codes:||97 EXPANDING KNOWLEDGE > 970109 Expanding Knowledge in Engineering @ 100%|
|Funders:||Gough Plastics Pty Ltd|
|Deposited On:||18 Aug 2011 14:53|
|Last Modified:||18 Oct 2013 01:19|
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