Modelling of granular solid-structure interaction: A comparative study using conventional FEM approach and linked DEM-FEM approach

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

Interaction between granular solids and boundary structures is a fundamental problem encountered in bulk solids handling and subsurface structural design. Current understanding of its mechanism has not been adequate for robust and economical engineering designs, especially for flexible boundary structures. A classic and essential example is uniaxial compression of dry granules in a deformable cylindrical container, where the response of the confined granules under axial loading and the load transmission to the contacting structure still remain not fully understood. This paper comparatively studies such a confined compression scenario using a newly developed numerical procedure (Linked DEM-FEM) and a conventional FEM approach. The examined system involved around 7700 polystyrene beads contained in an acrylic thin-walled tube supported at one rim and gagged by two end platens. The compression was applied by displacing one end platen at a constant rate while fixing the other. Characteristics of the compression system, including load-displacement response, force transmission to boundary structure, mobilised bulk wall friction coefficient, and stress distribution on the wall, were evaluated. The majority of the compared physical quantities show reasonable to good agreement, thus giving a convincing quantitative verification for both approaches.

原文???core.languages.en_GB???
主出版物標題Recent Development in Machining, Materials and Mechanical Technologies
編輯Jyh-Chen Chen, Usuki Hiroshi, Sheng-Wei Lee, Yiin-Kuen Fuh
發行者Trans Tech Publications Ltd
頁面520-525
頁數6
ISBN(列印)9783038354956
DOIs
出版狀態已出版 - 2015
事件International Conference on Machining, Materials and Mechanical Technologies, IC3MT 2014 - Taipei City, Taiwan
持續時間: 31 8月 20145 9月 2014

出版系列

名字Key Engineering Materials
656-657
ISSN(列印)1013-9826
ISSN(電子)1662-9795

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???event.eventtypes.event.conference???International Conference on Machining, Materials and Mechanical Technologies, IC3MT 2014
國家/地區Taiwan
城市Taipei City
期間31/08/145/09/14

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