NAME

Hongxiang Tang

Paper Publications

基于Cosserat连续体的颗粒破碎影响研究
  • Hits:
  • Indexed by:

    期刊论文

  • First Author:

    余村

  • Co-author:

    楚锡华,唐洪祥,徐远杰

  • Date of Publication:

    2013-08-10

  • Journal:

    岩土力学

  • Included Journals:

    PKU、ISTIC

  • Document Type:

    J

  • Volume:

    34

  • Issue:

    z1

  • Page Number:

    67-72,79

  • ISSN No.:

    1000-7598

  • Key Words:

    颗粒材料;Cosserat连续体;颗粒破碎;应变局部化

  • Abstract:

    颗粒破碎对颗粒材料宏观力学行为有重要影响.结合Hardin的破碎经验公式,将表征破碎程度的破碎参量与Cosserat连续体的内部长度参数相关联,形成一个基于Cosserat连续体且能考虑颗粒破碎的弹塑性模型.数值算例主要考察了颗粒破碎对颗粒材料承载能力、塑性应变及局部化行为的影响,数值结果表明,颗粒破碎主要发生在剪切带内,颗粒破碎使得剪切带明显变窄且剪切带内外等效塑性应变梯度明显增大.

Pre One:THREE-DIMENSIONAL PRESSURE-DEPENDENT ELASTOPLASTIC COSSERAT CONTINUUM MODEL AND FINITE ELEMENT SIMULATION OF STRAIN LOCALIZATION

Next One:Study of effect of particle breakage based on Cosserat continuum
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Address: No.2 Linggong Road, Ganjingzi District, Dalian City, Liaoning Province, P.R.C., 116024

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