Frontiers of Mechanical Engineering >
Numerical modeling of nonlinear deformation of polymer composites based on hyperelastic constitutive law
Received date: 26 Sep 2008
Accepted date: 10 Mar 2009
Published date: 05 Sep 2009
Copyright
Fiber reinforced polymer (FRP) composites exhibit nonlinear and hyperelastic characteristics under finite deformation. This paper investigates the macroscopic hyperelastic behavior of fiber reinforced polymer composites using a micromechanical model and finite deformation theory based on the hyperelastic constitutive law. The local stress and deformation of a representative volume element are calculated by the nonlinear finite element method. Then, an averaging procedure is used to find the homogenized stress and strain, and the macroscopic stress-strain curves are obtained. Numerical examples are given to demonstrate hyperelastic behavior and deformation of the composites, and the effects of the distribution pattern of fibers are also investigated to model the mechanical behavior of FRP composites.
Key words: composites; hyperelastic; finite deformation; homogenization; micromechanics
Qingsheng YANG , Fang XU . Numerical modeling of nonlinear deformation of polymer composites based on hyperelastic constitutive law[J]. Frontiers of Mechanical Engineering, 2009 , 4(3) : 284 -288 . DOI: 10.1007/s11465-009-0067-0
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