首页> 外文期刊>Applied Mathematical Modelling >Constitutive modelling for the mullins effect with permanent set and induced anisotropy in particle-filled rubbers
【24h】

Constitutive modelling for the mullins effect with permanent set and induced anisotropy in particle-filled rubbers

机译:含颗粒砂橡胶中永久性集合的Mullins效应的本构模拟,诱导各向异性

获取原文
获取原文并翻译 | 示例
       

摘要

Rubber industry plays an important part in various application fields and particle-filled rubbers with reinforced mechanical properties are very essential. The stress softening during cyclic loading, known as the Mullins effect, are evident in filled rubbers. The Mullins softening can induce permanent set and anisotropy. It is crucial to understand these phenomena well. In this paper, we propose a new constitutive model that integrates the micro-sphere model with the network alteration theory. The physical mechanisms of the Mullins effect in particle-filled rubbers are analyzed elaborately and comprehensively to propose new directional damage equations for the network alteration parameters. Both the softening effects in stretched directions and the stiffening effects in contracted directions are taken into account in the modelling. The resulting theoretical model is then applied to predict the stress softening, the residual stretch and the induced anisotropy in vsrious filled rubbers. Moreover, the prediction effect of the current model is compared with those by applying two existing directional macromolecular models. The comparisons with other model predictions and with the experimental data are then analyzed intensively to reveal the underlying mechanisms of the Mullins effect in the different filled rubbers. The results demonstrate the capability of the proposed model to quantitatively predict the Mullins effect with permanent set and induced anisotropy and to clearly reveal the major mechanisms of the Mullins effect for various filled rubbers.
机译:橡胶工业在各种应用领域起重要作用,具有增强机械性能的粒子填充橡胶是非常重要的。在填充橡胶中,循环载荷期间的应力软化在含有穆辛的效果中。 Mullins软化可以诱导永久集和各向异性。很好地理解这些现象是至关重要的。在本文中,我们提出了一种新的组成型模型,将微球模型与网络改变理论集成在一起。颗粒填充橡胶中的Mullins效应的物理机制被精心分析,综合地分析了网络改变参数的新定向损伤方程。在建模中考虑到延伸方向上的软化效果和在收缩方向上的加强效果。然后应用所得到的理论模型以预测vSrious填充橡胶中的应力软化,残留伸展和诱导的各向同性。此外,通过施加两个现有定向大分子模型将当前模型的预测效果与那些进行比较。然后,与其他模型预测和实验数据进行比较,以积极分析,以揭示不同填充橡胶中的穆林斯效应的潜在机制。结果证明了所提出的模型与永久组和诱导的各向异性定量预测穆林斯效应的能力,并清楚地揭示了穆林斯对各种填充橡胶的主要机制。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号