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Books > Professional & Technical > Mechanical engineering & materials > Materials science > Mechanics of solids > Stress & fracture
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Mechanical damage and crack growth in concrete - Plastic collapse to brittle fracture (Hardcover, 1986 ed.)
Loot Price: R5,720
Discovery Miles 57 200
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Mechanical damage and crack growth in concrete - Plastic collapse to brittle fracture (Hardcover, 1986 ed.)
Series: Engineering Applications of Fracture Mechanics, 5
Expected to ship within 10 - 15 working days
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Following Volumes III and IV that dealt with the fracture mechanics
of concrete emphasizing both material testing and structural
application in general, it was felt that specimen size and loading
rate effects for concrete require further attention. The only
criterion that has thus far successfully linearized the highly
nonlinear crack growth data of concrete is the strain energy
density theory. In particular, the crack growth resistance curves
plotting the strain energy density factor versus crack growth known
as the SR.curves are straight lines as specimen size and loading
steps or rates are altered. This allows the extrapolation of data
and provides a useful design methodology. This book is unique in
that it is devoted specifically to the application of the strain
energy density theory to civil engineering structural members made
of concrete. Analyzed in detail is the strain softening behavior of
concrete for a variety of different components including the
influence of steel reinforcement. Permanent damage of the material
is accounted for each increment of loading by invoking the
mechanism of elastic unloading. This assumption is justified in
concrete structures where the effective stiffness depends primarily
on the crack growth rate and load history. Crack growth data are
presented in terms of SR-curves with emphases placed on scaling
specimen size which alone can change the mode of failure from
plastic collapse to brittle fracture. Loading rate effects can also
be scaled to control failure by yielding and fracture."
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