Evolution of Anisotropy in Granular Materials: Effect of Particle Rolling and Particle Crushing
The effect of particle rolling and crushing on the evolutions of the two types of anisotropy, i.e., anisotropy of particle packing (microstructure) and anisotropy of force chains, is investigated numerically using the discrete element method. To this end, the classical fabric tensor is adopted...
Збережено в:
| Дата: | 2014 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут проблем міцності ім. Г.С. Писаренко НАН України
2014
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| Назва видання: | Проблемы прочности |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/112716 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Evolution of Anisotropy in Granular Materials: Effect of Particle Rolling and Particle Crushing / L.L. Zhou, X.H. Chu, Y.J. Xu // Проблемы прочности. — 2014. — № 2. — С. 73-80. — Бібліогр.: 11 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The effect of particle rolling and crushing on the
evolutions of the two types of anisotropy, i.e.,
anisotropy of particle packing (microstructure)
and anisotropy of force chains, is investigated
numerically using the discrete element method.
To this end, the classical fabric tensor is adopted
to describe the anisotropy of microstructure,
while two similar orientation tensors defined by
the directions of contact forces are used to characterize
the anisotropy of force chains. Numerical
results show that the evolutions of
anisotropy follows the same tendency as the
stress–strain curve, and the anisotropy of force
chains is more intense than that of the
microstructure. In addition, particle rolling exerts
different effect on anisotropy before and after
the peak stress state, and particle crushing
decreases the anisotropy of granular materials. |
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