Abstract
The sandwich structure is of great interest because of its advantage of combining light weight and high flexural stiffness. Many previous researchers have studied the failure modes in sandwich structures and the effects on the load capacity caused by the change of the constituent materials’ properties. In this research, by applying Finite Element Analysis (FEA) method, we simulated a cantilever beam composed of a sandwich structure in Abaqus, to find out the preferred design principles that help decrease the stress and displacement in the beam when applied a uniform load. We also determined the effect of the core geometry on decreasing the displacement and the stress in the beam.
Highlights
A Sandwich structure is normally composed of two thin outer layers with a large density and a thick inner layer with a smaller density
By applying Finite Element Analysis (FEA) method, we simulated a cantilever beam composed of a sandwich structure in Abaqus, to find out the preferred design principles that help decrease the stress and displacement in the beam when applied a uniform load
We studied the effect of the core geometry on the stress and the displacement distribution
Summary
A Sandwich structure is normally composed of two thin outer layers (faces) with a large density and a thick inner layer (core) with a smaller density. Generally discussed how the Young’s Modulus and the thickness of the core and faces affect the load capacity of the sandwich panel. Saeid and Donaldson [1] studied on the effects of thickness variation of the core material on the load capacity of the structure through experiments. Konsta [3] focused on how the geometry of the core can affect the failure mode by comparing foam and honeycomb core design. In this present work, we summarized the effect of Young’s modulus and thickness variation on the load capacity of the structure by simulation analysis with FEA method. This gives us guidance on the design of hollow core structures in sandwich beams in the future
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