Title :
Spring boundary conditions and modeling of 2D wave propagation in composites with imperfect interfaces
Author :
Golub, Mikhail V. ; Boström, Anders
Author_Institution :
Inst. for Math., Mech. & Inf., Kuban State Univ., Krasnodar, Russia
Abstract :
The possibility of applying spring boundary conditions to model propagation of elastic waves in layered composites with nonperfect contact between layers in studied. The stiffnesses in the spring boundary conditions are determined by the crack density, the effective size of microdefects, and the elastic properties of the materials via the Baik-Thompson and Boström-Wickham approaches. The efficiency of the model is analyzed for periodic structures with damaged layers.
Keywords :
composite materials; elastic constants; elastic waves; elasticity; microcracks; wave propagation; 2D wave propagation; Baik-Thompson approach; Bostrom-Wickham approach; composite materials; crack density; elastic properties; elastic waves; imperfect interfaces; microdefects; nonperfect contact; spring boundary conditions; stiffness; Mathematical model; Springs;
Conference_Titel :
Days on Diffraction (DD), 2010
Conference_Location :
St. Petersburg
Print_ISBN :
978-1-4577-0244-0
Electronic_ISBN :
978-5-9651-0529-8
