A Boundary Element Model For Dynamic Analysis of Two-Phase and Three-Phase Composites

Authors: ALİ HAMZA TANRIKULU, YALÇIN MENGİ, AHMED KAMİL TANRIKULU

Abstract: In this study, a boundary element formulation having nonlocal boundary conditions is presented for the dynamic analysis of a two-phase composite. Nonlocal boundary conditions, used in the formulation, make it possible to analyze a three-phase composite. The formulation is performed in Fourier transform space using a constant element model. Based on the formulation presented in this study, two general purpose computer programs are developed, namely, CD2NL (for two-dimensional analysis) and CD3NL (for three-dimensional analysis). The programs perform the analysis in Fourier transform space and can also be used for static analysis by assigning a small value to the frequency. The results of some benchmark problems obtained using the programs are compared with those in the literature.

Keywords: Boundary Element Method, Two-Phase Composite, Three-Phase Composite, Nonlocal Boundary Conditions, Fourier Transform Space.

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