ABSTRACT

These damage indices are proofed to be related to internal energies of deformed/damaged structural states. Then in the paper, the FE solution process for computer simulations is described, which corresponds to the homogenization of the damage description in the constitutive relations up to structural level, applying a multilevel-simulation concept. Necessary degradation properties in the constitutive laws are discussed for reinforced concrete materials. Further, the developed concept is explained by hand of two examples: aRC test frame, and a RC urban plate bridge. Finally, the extension to problems of structural life-duration and residual life-time is commented, always based on the derived intrinsic damage indicators.