Development of a Bi-Material Representative Volume Element Using Damaged Homogenisation Approach

Ali Jelvehpour, Manicka Dhanasekar

Science and Engineering Faculty, Queensland University of Technology, Brisbane, Australia.

DOI: 10.4236/jamp.2013.16009                

Abstract

Most civil engineering structures are formed using a number of materials that are bonded to each other with their surface-to-surface interaction playing key role on the overall response of the structure. Unfortunately these interactions are extremely variable; simplified and extremely detailed models trialed to date prove quite complex. Models that assume perfect interaction, on the other hand, predict unsafe behavior. In this paper a damage mechanics based interaction between two materials of different softening properties is developed using homogenisation approach. This paper describes the process of developing a bi-material representative volume element (RVE) using damaged homogenisation approach. The novelty in this paper is the development of non-local transient damage identification algorithm. Numerical examples prove the stability of the approach for a simplified RVE and encourage application to other shapes of RVEs.

Keywords

Transient Gradient Non-Local; Homogenisation; Damage Mechanics

Conflicts of Interest

The authors declare no conflicts of interest.

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