| 橡胶材料的混合高弹性本构模型研究 |
| Study on Hybrid Hyperelastic Constitutive Model for Rubber Material |
| 投稿时间：2016-09-12 修订日期：2016-09-12 |
| DOI： |
| 中文关键词: 橡胶材料 非线性 高弹性 分子统计理论 本构模型 |
| 英文关键词: rubber material nonlinear hyperelastic statistical theory constitutive model |
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| 中文摘要: |
| 基于分子统计理论提出了一种适用于橡胶材料的混合高弹本构模型。采用修正Gaussian模型和修正8-链网络模型的非线性组合分别描述Gaussian变形和非Gaussian变形部分；对于微观层面上的分子链密度和宏观层面上的拉伸比，均将其分解为Gaussian变形和非Gaussian变形部分。不同拉伸模式下的应力-应变试验数据与Treloar数据的拟合对比证明了混合本构模型的适用性，且与Gaussian模型、3-链网络模型和8-链网络模型对比，其精确性有明显提高。 |
| 英文摘要: |
| 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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