The Earthquake Engineering Online Archive

A General Framework for Continuum Damage Models, Part I: Infinitesimal Plastic Damage Models in Stress Space

Armero, Francisco; Oller, Sergio

UCB/SEMM-1999/07, Dept. of Civil and Environmental Engineering, University of California, Berkeley, 1999-05, 34 pages (500/C23/1999/07)

Presents a general framework for the development of continuum damage models in their fully coupled plastic damage form. This first part focusses on the general formulation of infinitesimal models defined by yield and damage surfaces in stress space. The main feature of the proposed formulation is the direct and independent consideration of the damage mechanisms degrading the stiffness of the material, thus allowing for a complete physical characterization of these effects. This modular structure is accomplished by a kinematic decomposition of the strains in elastic, plastic and multiple damage parts, as belonging to each activated damage mechanism.

Available online: http://nisee.berkeley.edu/documents/SEMM/SEMM-99-07.pdf (3 MB)