• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>168th Technical Meeting of the Rubber Division, ACS(American Chemical Society) >ON CHALLENGES IN STRUCTURAL ANALYSIS OF RUBBER COMPONENTS: FRICTIONAL CONTACT (Paper No 46)
【24h】

ON CHALLENGES IN STRUCTURAL ANALYSIS OF RUBBER COMPONENTS: FRICTIONAL CONTACT (Paper No 46)

机译：橡胶组件结构分析中的挑战：摩擦接触（第46号文件）

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Structural analysis of rubber and rubber-like components can be considered as one of the most challenging areas in solid mechanics. Among others, severe computational challenges are primarily associated with significant geometrical non-linearity of deformation (hyper-elasticity), incompressibility, complex constitutive models, and the contact nature of boundary/loading conditions. The last challenge is especially serious due to uniquely high friction of rubber.The present study provides an advanced approach to mitigate contact challenges for very large coefficients of friction (COF). It is shown that the nature of this challenge fundamentally differs from other rubber-related structural issues (incompressibility, large deformations, etc.). Mathematical description of the challenge is considered in detail. A simple criterion of convergence is established and quantified. According to the approach, an efficient computational method is proposed for problems with slow convergence. The method provides solutions for problems where the convergence cannot be achieved using traditional techniques. The proposed approach offers also a simple and convenient capability to check if obtained convergent results are really true solutions.Simplicity of FEA implementation of the method is illustrated. It is shown that the method can be easily used in engineering practice and can guarantee a high level of predictive accuracy. Using the considered method and criteria, process of computational convergence is illustrated and explained for several structural models of rubber components with significant COF. Also, a simple benchmarking problem is proposed for validation of FEA contact algorithms at very high friction.
机译：橡胶和类橡胶部件的结构分析可以认为是固体力学中最具挑战性的领域之一。其中，严峻的计算挑战主要与变形的几何非线性（超弹性），不可压缩性，复杂的本构模型以及边界/载荷条件的接触特性有关。由于橡胶独特的高摩擦性，最后一个挑战尤其严峻。 本研究提供了一种先进的方法来缓解非常大的摩擦系数（COF）的接触挑战。结果表明，这一挑战的本质从根本上不同于其他与橡胶有关的结构问题（不可压缩性，大变形等）。详细考虑了挑战的数学描述。建立并量化了一个简单的收敛准则。根据该方法，针对收敛速度较慢的问题提出了一种有效的计算方法。该方法为使用传统技术无法实现收敛的问题提供了解决方案。所提出的方法还提供了一种简单方便的功能，可以检查所获得的收敛结果是否是真正的解决方案。 说明了该方法的FEA实现的简单性。结果表明，该方法易于在工程实践中使用，可以保证较高的预测精度。使用考虑的方法和标准，对具有显着COF的橡胶部件的几种结构模型进行了计算收敛的说明和解释。此外，提出了一个简单的基准测试问题，用于在非常高的摩擦力下验证FEA接触算法。

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