...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Проблемы прочностиПроблемы прочности: на рус．укр．и анг．языках >Numerical Simulation of Elastic Linear Micropolar Media Based on the Pore Space Length Scale Assumption
【24h】

Numerical Simulation of Elastic Linear Micropolar Media Based on the Pore Space Length Scale Assumption

机译：数值模拟线性微极弹性媒体基于孔隙空间长度范围假设

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

The 3D micropolar theory numerical simulations have been performed on the brittle isotropic materials (amorphous glass, brittle rock and two different lightweight concretes) with different pore sizes using the cylindrical models under uniaxial compressive loading. To pursue this goal, it is assumed that first, second and third microrotation constants ( α, β, and γ), which appear in the couple stress equilibrium equation, are proportional to the square of average pore diameter or so called characteristic length. Unexpectedly such an assumption leads to a constant polar ratio and consequently, the polar ratio cannot be accounted for as a material constant. The present phenomenon substantiates the existence of a redundant material constant for the 3D micropolar media. Accordingly, the micropolar shear constant к is a material constant. Different coupling numbers N, with relevant domain are numerically investigated to explore the characteristic features of the micropolar shear constant к. According to the results obtained in this paper, the present methodology shows a very good convergence and is consistent with the physically accepted results for the heterogeneous and homogeneous materials including nano- and microscale pores, whereas several unconverted or discontinuous stress fields are found out when using mesoscale pores. The latter disadvantage is believed to be caused by the impact of voids ratio variation under quasistatic loading.
机译：3 d微极理论数值模拟执行了脆弱的各向同性材料(非晶玻璃、脆性岩石和两个不同的轻质混凝土)不同使用圆柱形模型下孔隙大小单轴压缩加载。目标,假设第一,第二和第三microrotation常量(α,β和γ)出现在一些压力平衡方程,平均孔隙是成比例的平方直径或所谓的特征长度。意外导致了这样一种假设常数极地比率,因此,极地比例不能计入材料常数。的存在多余的材料常数3 d微极介质。微极剪切常数к材料常数。相关域流场进行数值研究探索的特征微极剪切常数к。结果摘要方法显示了很好的收敛性和与身体接受的结果一致异构和均质材料包括纳米和微尺度毛孔,而几个不改变的或不连续的压力字段是使用中尺度时发现毛孔。后者被认为是缺点由孔隙率变化的影响准静态加载。

著录项

相似文献

  • 外文文献
  • 中文文献
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