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Disorder and Fracture (Paperback, Softcover reprint of the original 1st ed. 1990)
Loot Price: R2,941
Discovery Miles 29 410
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Disorder and Fracture (Paperback, Softcover reprint of the original 1st ed. 1990)
Series: NATO Science Series B:, 235
Expected to ship within 10 - 15 working days
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Total price: R2,951
Discovery Miles: 29 510
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Fracture, and particularly brittle fracture, is a good example of
an instability. For a homogeneous solid, subjected to a uniform
stress field, a crack may appear anywhere in the structure once the
threshold stress is reached. However, once a crack has been
nucleated in some place, further damage in the solid will in most
cases propagate from the initial crack, and not somewhere else in
the solid. In this sense fracture is an unstable process. This
property makes the process extremely sensitive to any heterogeneity
present in the medium, which selects the location of the first
crack nucleated. In particular, fracture appears to be very
sensitive to disorder, which can favor or impede local cracks.
Therefore, in most realistic cases, a good description of fracture
mechanics should include the effect of disorder. Recently this need
has motivated work in this direction starting from the usual
description of fracture mechanics. Parallel with this first trend,
statistical physics underwent a very important development in the
description of disordered systems. In particular, let us mention
the emergence of some "new" concepts (such as fractals, scaling
laws, finite size effects, and so on) in this field. However, many
models considered were rather simple and well adapted to
theoretical or numerical introduction into a complex body of
problems. An example of this can be found in percolation theory.
This area is now rather well understood and accurately described.
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