| Study on Hybrid Hyperelastic Constitutive Model for Rubber Material |
| Received:September 12, 2016 Revised:September 12, 2016 |
| DOI： |
| Key Words: rubber material；nonlinear；hyperelastic；statistical theory；constitutive model |
| Author Name | Affiliation | E-mail | | YU Hai-fu | State Key Laboratory of Organic-inorganic Composite,Beijing University of Chemical Technology | yuhaifu2014@163.com | | LI Fan-zhu | State Key Laboratory of Organic-inorganic Composite,Beijing University of Chemical Technology | | | YANG Hai-bo* | State Key Laboratory of Organic-inorganic Composite,Beijing University of Chemical Technology | yanghb@mail.buct.edu.cn | | ZHANG Li-qun | State Key Laboratory of Organic-inorganic Composite,Beijing University of Chemical Technology | |
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| Abstract: |
| Based on the molecular statistical theory，a hybrid hyperelastic constitutive model for rubber material was proposed.The modified Gaussian network model and modified 8-chain network model were used to describe Gaussian deformation part and non-Gaussian deformation part respectively.The network molecular chain density at the micro-level and the stretch ratio at the macro-level were also decomposed into a Gaussian deformation part and a non-Gaussian deformation part.The comparison between test data and Treloar data of stress-strain under different tensile modes proved the applicability of the hybrid constitutive model.Compared with the Gaussian network model，3-chain network model and 8-chain network model，the hybrid hyperelastic constitutive model had obvious improvements in accuracy. |
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