Nonlinear Behavior of Concrete Dams Using Damage Mechanics
Publication: Journal of Engineering Mechanics
Volume 121, Issue 4
Abstract
This paper presents damage-mechanics-based models for predicting the nonlinear static response of unreinforced concrete dams. An anisotropic formulation of the damage because of cracking is proposed. It leads to a reasonable finite-element mesh size. Correct convergence of energy dissipation is ensured by using the energy equivalence concept. The proposed expression for the evolution of damage is a function of the basic properties of concrete strength, and , and the fracture energy G f . Three examples are presented to illustrate the performance and accuracy of the proposed formulation. The first example compares the numerical results with experimental measurements obtained from a reduced model of a concrete dam. The second example uses Koyna dam as a test case to compare the damage mechanics theory with other theories on cases of reservoir overflow. The last example investigates the influence of initial damage on the seismic response of a gravity dam analyzed using the equivalent static loads.
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Information & Authors
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Published In
Journal of Engineering Mechanics
Volume 121 • Issue 4 • April 1995
Pages: 513 - 527
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: Apr 1, 1995
Published in print: Apr 1995
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