Autors: Zhelyazov, T. A., Ivanov R. Title: Numerical simulation of cracking in concrete using damage mechanics Keywords: cracking of concrete; shear panel; damage mechanics; volume of cracks Abstract: Damage Mechanics is employed to simulate the crack initiation and propagation in concrete structural elements. To this end, the stressstrain relationship for concrete is modified by introducing a damage variable which affects the elasticity tensor. The damagebased constitutive relationship defined for concrete is integrated into a generalpurpose finite element code. The damage accumulated in each finite element is quantified throughout the loading history. Finite elements in which a critical value of the damage variable is reached are deactivated. The volume of cracks can also be approximately evaluated. The relative amount of cracks is considered by the authors to be an important characteristic of the material in the context of smart, selfhealing concrete. It provides valuable information for the design of a smart structural element, namely in optimizing the amount and pattern of placement of the healing agent. References Issue

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