Hyperelasticity of Rubbery Materials with Chains' volume, Nonaffine Deformation, and Topological Constraint

2017 International Conference on Material Engineering and Manufacturing

Hao, D.^1,3 ; Zhang, L.^1 ; Yu, J.^2 ; Shi, J.Y.^1 ; Mao, D.Y.^1

High Speed Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang

621000, China^1

Computational Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang

621000, China^2

College of Aerospace Science and Engineering, National University of Defense Technology, Changsha

410073, China^3

关键词: Engineering applications;    Homogeneous deformation;    Hyperelastic models;    Industrial fields;    Non-affine deformation;    Predictive accuracy;    Rubbery materials;    Topological constraints;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/265/1/012001/pdf
DOI  :  10.1088/1757-899X/265/1/012001

来源: IOP

【 摘 要 】

Rubbery materials play a significant role in industrial field for the reason of better excellent elasticity. A hyperelastic model is proposed, into which chains' volume, nonaffine deformation, and topological constraint are introduced. After obtained the model, it is naturally transformed to investigate homogeneous deformations for isotropic and incompressible rubbery materials and verified by Treloar's experiments. The results show that the present model has ability to express the hyperelasticity of rubbery materials, and the highly predictive accuracy with only simple computation makes the novel model adequate for engineering applications.