A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The traditional concept of failure for geomaterials is first recalled. Advanced failure conditions are then presented and discussed. The conditions for shear band occurrence (non-homogeneous bifurcation) are given. It is next shown that homogeneous bifurcations can occur in the hardening regime (e.g. the so-called static liquefaction) even before the occurrence of failure by shear banding. Other instability conditions of this kind are discussed and connected with the nullity of second order work. It is finally shown that the familiar concept of undrained strength can be better understood as a condition of controllability loss.
The traditional concept of failure for geomaterials is first recalled. Advanced failure conditions are then presented and discussed. The conditions for shear band occurrence (non-homogeneous bifurcation) are given. It is next shown that homogeneous bifurcations can occur in the hardening regime (e.g. the so-called static liquefaction) even before the occurrence of failure by shear banding. Other instability conditions of this kind are discussed and connected with the nullity of second order work. It is finally shown that the familiar concept of undrained strength can be better understood as a condition of controllability loss.
Failure in geomaterials
Nova, Roberto (author)
European Journal of Environmental and Civil Engineering ; 13 ; 779-802
2009-09-01
24 pages
Article (Journal)
Electronic Resource
Unknown
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