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Books > Professional & Technical > Mechanical engineering & materials > Mechanical engineering
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Modeling and Mechanics of Granular and Porous Materials (Hardcover, 2002 ed.)
Loot Price: R5,346
Discovery Miles 53 460
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Modeling and Mechanics of Granular and Porous Materials (Hardcover, 2002 ed.)
Series: Modeling and Simulation in Science, Engineering and Technology
Expected to ship within 18 - 22 working days
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Soils are complex materials: they have a particulate structure and
fluids can seep through pores, mechanically interacting with the
solid skeleton. Moreover, at a microscopic level, the behaviour of
the solid skeleton is highly unstable. External loadings are in
fact taken by grain chains which are continuously destroyed and
rebuilt. Many issues of modeling, even of the physical details of
the phenomena, remain open, even obscure; de Gennes listed them not
long ago in a critical review. However, despite physical
complexities, soil mechanics has developed on the assumption that a
soil can be seen as a continuum, or better yet as a medium obtained
by the superposition of two and sometimes three con and the other
fluids, which occupy the same portion of tinua, one solid space.
Furthermore, relatively simple and robust constitutive laws were
adopted to describe the stress-strain behaviour and the interaction
between the solid and the fluid continua. The contrast between the
intrinsic nature of soil and the simplistic engi neering approach
is self-evident. When trying to describe more and more
sophisticated phenomena (static liquefaction, strain localisation,
cyclic mo bility, effects of diagenesis and weathering, ..... ),
the nalve description of soil must be abandoned or, at least,
improved. Higher order continua, incrementally non-linear laws,
micromechanical considerations must be taken into account. A new
world was opened, where basic mathematical questions (such as the
choice of the best tools to model phenomena and the proof of the
well-posedness of the consequent problems) could be addressed."
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