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Damage in domains and
interfaces: a coupled predictive theory
Francesco Freddi and Michel Frémond |
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Vol. 1 (2006), No. 7, 1205–1233
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Abstract |
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In this study, we propose a model coupling damage of domains and damage of interfaces. A predictive theory of continuum damage mechanics is developed within the framework of the principle of virtual power. Because damage results from microscopic motions, the power of these microscopic motions is included in the power of the internal forces. The power of the internal forces we choose depends on the damage velocity and on its gradient to take into account local interactions. An interaction between the domain damage and the damage along the interface is introduced. To overcome the insensitivity of the local interface model to elongation, nonlocal elongation has been considered as a source of damage. Representative numerical examples confirm that our proposed model can be used to describe various damage phenomena in agreement with experiments. |
Keywords
principle of virtual power, domain damage, interface
damage, elongation, damage of glued concrete structures
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Milestones
Received: 6 February 2006
Revised: 20 April 2006
Accepted: 6 June 2006
Published: 1 November 2006
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Authors |
| Francesco Freddi | |
| Department of Civil Engineering
& Architecture University of Parma Viale Usberti 181/A 43100 Parma Italy |
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| Michel Frémond | |
| Laboratoire Lagrange Laboratoire Central des Ponts et Chausées - LCPC 58 Boulevard Lefebvre 75732 Paris Cedex 15 France |
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