Optimum Selection of Corrugated Sandwich Panels Shape and Materials Subjected to Blast Loading

Abstract

The behavior of different structures subjected to blast loads is always an important factor to study. Sandwich panels have a wide range of applications in different fields of engineering and the construction of some industrial and military structures. These panels are made of two sheets and an intermediate core. The core has a significant role in reducing the deflection and enhancing energy absorb of structure. In this article, the effect of the shape of the corrugated panel and the type of panel materials is investigated. Hence, the reaction of aluminum and steel sandwich panels subjected to blast loads has been investigated. In the process of analysis, four kinds of profiles, which are: rectangular, trapezoidal, triangular and elliptical, are considered as panel cores. the most deflection was for rectangular profiles and the least deflection was for triangular ones. Those panels which are completely made of aluminum or the panels with steel cores can sustain more strain energy by their back sheets. all the panels that are completely made of aluminum have more damped energy than others. Those panels which have only aluminum sheets or aluminum cores are placed next to whole aluminum panels in order to damped energy level. In the study of the joint effect of the type of materials and the shape of the core panel, the panel with the upper and back of the steel and aluminum core with the triangular shape has the most desirable.

Keywords

• blast loading
• sandwich panel
• corrugated core
• damped energy
• maximum deflection