Time Effects Relate to Particle Crushing in Granular Materials

Lade, Poul V.

doi:10.1007/978-3-642-32814-5_34

Time Effects Relate to Particle Crushing in Granular Materials

Poul V. Lade⁵

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Part of the book series: Springer Series in Geomechanics and Geoengineering ((SSGG))

Summary

Sands exhibit patterns of time effects different from those observed in clays. It appears that time effects in sand are associated with crushing of particles, and a mechanistic picture of time effects in granular materials is constructed in which time effects depend on particle crushing by static fatigue, interparticle friction, and grain rearrangement. The phenomenon of static fatigue or delayed fracture of individual particles seems to be at the root of time effects in sand. While creep and relaxation are caused by the same underlying phenomenon, it appears that results of creep tests cannot be obtained from results of relaxations tests, and vice versa.

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References

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Authors and Affiliations

Department of Civil Engineering, The Catholic University of America, Washington, D.C., 20064, U.S.A.
Poul V. Lade

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Poul V. Lade
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Correspondence to Poul V. Lade .

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Editors and Affiliations

, State Key Laboratory, Tsinghua University, Beijing, 100084, China, People's Republic
Qiang Yang
, State Key Laboratory, Tsinghua University, Beijing, 100084, China, People's Republic
Jian-Min Zhang
Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, 430071, China, People's Republic
Hong Zheng
Department of Civil Engineering, School of Transportation Science, Beihang University, Beijing, 100191, China, People's Republic
Yangping Yao

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Lade, P.V. (2013). Time Effects Relate to Particle Crushing in Granular Materials. In: Yang, Q., Zhang, JM., Zheng, H., Yao, Y. (eds) Constitutive Modeling of Geomaterials. Springer Series in Geomechanics and Geoengineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-32814-5_34

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DOI: https://doi.org/10.1007/978-3-642-32814-5_34
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-32813-8
Online ISBN: 978-3-642-32814-5
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