• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Granular matter >On sintering of tiny glass beads in oscillating diametric compressions
【24h】

On sintering of tiny glass beads in oscillating diametric compressions

机译：径向直径压缩中的微小玻璃珠的烧结

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

Sintering of tiny spherical glass beads induced by oscillating diametric compression at room temperature is considered. The amorphous glass beads are modeled as isotropic elasto-plastic solid with bilinear stress-strain constitutive relationship, which is implemented in a finite element code. The coupled thermal and mechanical response of the glass beads under cyclic compressions is investigated. Our numerical simulations show that the local temperatures and stresses near the contact points can significantly be raised during adiabatic compression cycles. The temperature rise is more pronounced for contact between two beads with different sizes or for contact with more neighboring beads. There exist temperature and stress gradients from the interiors toward the contact points. These findings provide a feasible explanation for the sintering found in recent triaxial compression experiments with tiny glass beads under room temperature and low pressure.
机译：考虑了在室温下由径向直径压缩引起的微小球形玻璃珠的烧结。非晶玻璃珠被建模为具有双线性应力-应变本构关系的各向同性弹塑性实体，并以有限元代码实现。研究了玻璃珠在循环压缩下的耦合的热和机械响应。我们的数值模拟表明，在绝热压缩循环中，接触点附近的局部温度和应力会显着升高。对于具有不同尺寸的两个小珠之间的接触或与更多相邻小珠的接触，温度升高更为明显。从内部到接触点存在温度和应力梯度。这些发现为最近的三轴压缩实验中在室温和低压下用微小玻璃珠进行烧结提供了可行的解释。

著录项

  • 来源
    《Granular matter》 |2016年第4期|73.1-73.18|共18页
  • 作者

    Fang Chung; Wu Wei; Lin Yung-Jung; Chen Yen-Hung; Doanh Thiep;

  • 作者单位

    Natl Cheng Kung Univ, Dept Civil Engn, 1 Univ Rd, Tainan 701, Taiwan;

    Univ Nat Resources & Life Sci Vienna, Inst Geotech Engn, Feistmantelstr 4, A-1180 Vienna, Austria;

    Natl Cheng Kung Univ, Dept Civil Engn, 1 Univ Rd, Tainan 701, Taiwan;

    Natl Cheng Kung Univ, Dept Civil Engn, 1 Univ Rd, Tainan 701, Taiwan;

    ENTPE, UMR 5513, LGCB, LTDS, Rue M Audin, F-69518 Vaulx En Velin, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Finite element model; Glass bead; Numerical simulation; Sintering;

    机译：有限元模型;玻璃微珠;数值模拟;烧结;

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