Three-dimensional constitutive model for elastic-plastic behaviour of fibre-reinforced composites

A formulation of a three-dimensional homogenized constitutive model is developed that can predict strain localization in fibre-reinforced composites. A constitutive equation for the model is developed in a general rate form based on independent constituent behaviour which can be either elastic or el...

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Veröffentlicht in:	International journal of solids and structures 2018-05, Vol.139-140 (1), p.150-162
Hauptverfasser:	Skovsgaard, Simon P.H., Jensen, Henrik Myhre
Format:	Artikel
Sprache:	eng
Schlagworte:	Anisotropic Anisotropy Constitutive equations Constitutive laws Constitutive models Deformation Elastoplasticity Fiber composites Fiber reinforced composites Fiber reinforced plastics Fibre reinforced Finite deformation Instability Materials elasticity Mathematical models Polymer matrix composites Strain localization Three dimensional models
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Beschreibung
Zusammenfassung:	A formulation of a three-dimensional homogenized constitutive model is developed that can predict strain localization in fibre-reinforced composites. A constitutive equation for the model is developed in a general rate form based on independent constituent behaviour which can be either elastic or elastic-plastic. The performance of the constitutive model is investigated by performing an infinite kink band analysis. The development of a kink band is investigated for several initial imperfections and compared with previously published results.
ISSN:	0020-7683 1879-2146
DOI:	10.1016/j.ijsolstr.2018.01.032