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A Damage Model with Non-convex Free Energy for Quasi-brittle Materials by François, Marc Louis Maurice is a scholarly article available to read on EtoBox.

What is A Damage Model with Non-convex Free Energy for Quasi-brittle Materials about?

A state coupling between the hydrostatic (volumetric) and deviatoric parts of the free energy is introduced in a damage mechanics model relevant for the quasi-brittle materials. It is shown that it describes the large dilatancy of concrete under compression and the different localization angles and damage levels in tension and compression. A simple isotropic description is used, although similar ideas can be extended to anisotropic damage. The model is identified with respect to tensile and compression tests and validated on bi-compression and bi-tension. Fully written in three dimensions under the framework of thermodynamics of irreversible processes, it allows further developments within a finite element code.

Author

François, Marc Louis Maurice

Published

2010

Language

EN