首页> 外文期刊>Granular matter >DEM of triaxial tests on erushable sand
【24h】

DEM of triaxial tests on erushable sand

机译:可冲砂三轴试验的DEM

获取原文
获取原文并翻译 | 示例
       

摘要

This paper presents simulations of high-pressure triaxial shear tests on a crushable sand. The discrete element method is used, featuring a large number of particles and avoiding the use of agglomerates. The triaxial model features a flexible membrane, therefore allowing realistic deformation, and a simple breakage mechanism is implemented using the octahedral shear stress induced in the particles. The simulations show that particle crushing is essential to replicate the realistic behaviour of sand (in particular the volumetric contraction) in high-pressure shear tests. The general effects of crushing during shear are explored, including its effects on critical states, and the influence of particle strength and confining pressure on the degree of crushing are discussed.
机译:本文介绍了在可碎砂上进行高压三轴剪切试验的模拟。使用离散元素方法,该方法具有大量颗粒并且避免使用附聚物。三轴模型的特点是具有柔性膜,因此允许实际变形,并且使用颗粒中感应的八面体剪切应力实现了简单的断裂机制。模拟表明,在高压剪切试验中,颗粒破碎对于复制沙子的真实行为(尤其是体积收缩)至关重要。探讨了剪切过程中压碎的一般影响,包括其对临界状态的影响,并讨论了颗粒强度和围压对压碎程度的影响。

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