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Home  >  Journal list  >  Journal of the Society of Materials Science, Japan  >  Vol.55  No.3 (2006)  >  pp.323-328

Journal of the Society of Materials Science, Japan
<<Previous article Vol.55  No.3 (2006)   pp.323 - 328 Next article>>

The Effect of the Loading Rate on Stress-Strain Characteristics of Tuff

Yuichi KOHMURA1) and Yoshinori INADA2)
1) Takenaka R & D Inst.
2) Dept. of Civil & Environmental Eng., Faculty of Eng., Ehime Univ.


Much research has been carried out on the time-dependent behavior of rocks. It is well known that uni axial compressive strength increases as the strain rate becomes larger. Rock in general mainly contains microscopic cracks. In process to failure, cracks seem to develop parallel to the loading direction from the tip of microscopic cracks. Therefore, it is important to pay attention to the behavior of the circumferential strain when the time-dependency of stress-strain characteristics of rocks is examined. In this study the uni axial compression test are carried out using tuff , and the effect of stress rate on the stress-strain behavior is described.


Keyword:
Stress rate, Tuff, Stress-strain characteristics, Uni axial compression test, Time-dependency

Received: September 08, 2005
Published online: April 26, 2006
Copyright (c) 2006 by The Society of Materials Science, Japan

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