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A hyperelastic constitutive model for fiber-reinforced rubber-like materials

Fereidoonnezhad, B ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1016/j.ijengsci.2013.06.001
  3. Publisher: 2013
  4. Abstract:
  5. In this paper, a Strain Energy Function (SEF) is proposed to characterize the hyperelastic behavior of transversely isotropic incompressible fiber-reinforced rubbers. The kinematics of the deformation is based on a strain measure consistent with the physics of the deformation. The SEF consists of an isotropic part and an anisotropic one where a simple form of SEF is used for both parts. In order to investigate the capabilities of the proposed model, two fiber-reinforced rubbers under homogeneous deformations are examined. The predictions of the model show a good agreement with the experimental data for both tensile and shear deformations. Also, torsion of a fiber-reinforced rubbery circular cylinder is investigated. It is shown that, in the absence of an additional axial force, the cylinder may elongate (Poynting effect) or contract (reverse-Poynting effect) based on the fibers angle and the amount of deformation
  6. Keywords:
  7. Constitutive model ; Fiber-reinforced rubbers ; Hyperelasticity ; Homogeneous deformation ; Hyperelastic behavior ; Hyperelastic constitutive model ; Strain energy functions ; Transverse isotropy ; Transversely isotropic ; Circular cylinders ; Constitutive models ; Fibers ; Deformation
  8. Source: International Journal of Engineering Science ; Volume 71 , 2013 , Pages 36-44 ; 00207225 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0020722513000852