• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of the Mechanics and Physics of Solids >Chemorheological response of elastomers at elevated temperatures: Experiments and simulations
【24h】

Chemorheological response of elastomers at elevated temperatures: Experiments and simulations

机译：弹性体在高温下的化学流变响应：实验和模拟

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An experimental study and a method for simulating the constitutive response of elastomers at temperatures in the chemorheological range (90-150℃ for natural rubber) are presented. A comprehensive set of uniaxial experiments for a variety of prescribed temperature histories is performed on natural rubber specimens that exhibit finite elasticity, entropic stiffening with temperature, viscoelasticity, scission, and oxygen diffusion/reaction effects. The simulation approach is based on a multi-network framework for finite elasticity, isothermal incompressibility, thermal expansion, and temperature-induced degradation. The model extends previous work to account for kinetics of scission for arbitrary time-varying temperature histories and incorporates the effects of viscoelastic relaxation and diffusion-limited oxidative scission. The model is calibrated to experiments performed on a commercially-available filled natural rubber material, and numerical simulations are compared favorably to experiments for a variety of temperature histories.
机译：提出了在化学流变温度（天然橡胶为90-150℃）下模拟弹性体本构反应的实验研究和方法。对天然橡胶样品进行了一系列规定的各种温度历史记录的全面单轴实验，这些样品表现出有限的弹性，随温度的熵变，粘弹性，断裂和氧扩散/反应效应。该模拟方法基于用于有限弹性，等温不可压缩性，热膨胀和温度引起的降解的多网络框架。该模型扩展了先前的工作，以考虑任意时变温度历史的断裂动力学，并纳入了粘弹性松弛和扩散受限的氧化断裂的影响。该模型已针对在市售的填充天然橡胶材料上进行的实验进行了校准，并且数值模拟与各种温度历史的实验相比具有优势。

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