In this paper the effects of adding an extra layer within a sandwich panel and coretypes in top and bottom cores on quasistatic loading are studied experimentally. The panel includes polymer composite laminated sheets for faces and the internal laminated sheet called extra layer sheet, and two types of crushable foams are selected as the core material. Quasistatic tests were done by ZWICK testi...

This paper describes an optimization procedure to design thermoplastic composite panels under axial compressive load conditions. Minimum weight is the goal. The panel design is subject to buckling constraints. The presence of the bending-twisting coupling and of particular boundary conditions does not allow an analytical solution for the critical buckling load. Surrogate models are used to appr...

With the growing importance of principle sustainability, there is an increasing interest in use timber–concrete composite for floors, especially medium and large span buildings. Timber–concrete combines better properties both materials reduces their disadvantages. The most common choice to a cross-laminated timber panel as base composite. But solution with plywood rib panels adhesive connection...

Material selection is an important process in the product development. To avoid inappropriate decision of materials, analytic hierarchy process (AHP) can be one of the useful tools for determining the most suitable material for automotive dashboard panel. In this project, database of material properties of natural fiber composites has been organized systematically. The material properties of na...

Ballistic impact on composite panels is studied in this work both experimentally and computationally. The purpose was to develop computational methods to analyze a high speed jet engine fragment impacting on composite targets. 12 inch by 12 inch laminated panels with 8, 16, and 32 plies and the standard +-45, 0 /90 degree stacking sequences were considered. With the nominal ply thickness of 0.0...