Micromechanical behavior of granular materials in direct shear modeling

NCU Institutional Repository > 工學院 > 土木工程學系 > 期刊論文 > Item 987654321/100288

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://ir.lib.ncu.edu.tw/handle/987654321/100288

题名:	Micromechanical behavior of granular materials in direct shear modeling
作者:	黃文昭;Huang, Wen-Chao;Sung, Chiu-Yen;Liao, Hung-Yun;Chu, Sheng-Shin
贡献者:	工學院土木工程學系
关键词:	direct shear test;discrete element method;granular material;micromechanical behavior
日期:	2015-05-19
上传时间:	2026-04-21 13:56:22 (UTC+8)
出版者:	Taylor and Francis Ltd.;Taylor & Francis
摘要:	摘要： Direct shear testing is among the most frequently performed laboratory tests for determining the engineering properties of soil, particularly dry granular soils. This study employed the discrete element method to simulate a direct shear test to examine the microstructure and micromechanical behaviors of granular materials in dense and loose states. The analysis results show that a relationship exists between the microscopic and macroscopic properties of the simulated dense granular assemblies. Dilation of the dense granular material resulted from an increase in volume in the area along the shear plane. By contrast, contraction of the loose granular material resulted from a decrease in volume decrease throughout the granular sample. The dense materials exhibited axial compression and lateral extension stress paths in the middle of the shear plane. The loose materials exhibited stress path variations that were markedly more complex and varied. For the dense materials, the initial orientation of the major principal stress plane was approximately horizontal. During the test, the formation of a contact force chain caused the major plane to rotate counterclockwise until it was at approximately 45°-55° to the original, horizontal position. 出版者： Taylor & Francis 出版日期： 2015-05-19 出處： Journal of the Chinese Institute of Engineers, 2015-05, Vol.38 (4), p.469-480 版權： 2015 The Chinese Institute of Engineers 2015 識別號： ISSN: 0253-3839 識別號： EISSN: 2158-7299 識別號： DOI: 10.1080/02533839.2014.998286
显示于类别:	[土木工程學系 ] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	14	检视/开启

在NCUIR中所有的数据项都受到原著作权保护.

社群 sharing

数据加载中.....