Satic states of cohesive granular media

This paper investigates the influence of cohesion on the behavior of 2D granular media simulated by using a molecular dynamics method, involving a simple contact law with adhesion. The study considers an adhesion index which is non intrinsic but significant for interpreting the mechanical effects of...

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Main Authors: I. Preechawuttipong, R. Peyroux, F. Radjai, W. Rangsri
Format: Journal
Published: 2018
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Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=37549011796&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/61096
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-610962018-09-10T04:04:12Z Satic states of cohesive granular media I. Preechawuttipong R. Peyroux F. Radjai W. Rangsri Engineering This paper investigates the influence of cohesion on the behavior of 2D granular media simulated by using a molecular dynamics method, involving a simple contact law with adhesion. The study considers an adhesion index which is non intrinsic but significant for interpreting the mechanical effects of applied pressure. A static state system of 4000 particles is numerically simulated by oedometrical compression under a constant force, without gravity. The results show how the geometrical texture and the network of contact forces change according to the level of adhesion. This effect is explained essentially in term of the increase in the number of the tensile contacts and by the development of the internal self-stress structure. As in the case of non cohesive granular media, a high spatial heterogeneity of the contact forces is observed. 2018-09-10T04:04:12Z 2018-09-10T04:04:12Z 2007-01-01 Journal 1738494X 2-s2.0-37549011796 10.1007/BF03177453 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=37549011796&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/61096
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Engineering
spellingShingle Engineering
I. Preechawuttipong
R. Peyroux
F. Radjai
W. Rangsri
Satic states of cohesive granular media
description This paper investigates the influence of cohesion on the behavior of 2D granular media simulated by using a molecular dynamics method, involving a simple contact law with adhesion. The study considers an adhesion index which is non intrinsic but significant for interpreting the mechanical effects of applied pressure. A static state system of 4000 particles is numerically simulated by oedometrical compression under a constant force, without gravity. The results show how the geometrical texture and the network of contact forces change according to the level of adhesion. This effect is explained essentially in term of the increase in the number of the tensile contacts and by the development of the internal self-stress structure. As in the case of non cohesive granular media, a high spatial heterogeneity of the contact forces is observed.
format Journal
author I. Preechawuttipong
R. Peyroux
F. Radjai
W. Rangsri
author_facet I. Preechawuttipong
R. Peyroux
F. Radjai
W. Rangsri
author_sort I. Preechawuttipong
title Satic states of cohesive granular media
title_short Satic states of cohesive granular media
title_full Satic states of cohesive granular media
title_fullStr Satic states of cohesive granular media
title_full_unstemmed Satic states of cohesive granular media
title_sort satic states of cohesive granular media
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=37549011796&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/61096
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