The sandwich sheet is a novel laminated sheet material with advanced vibration damping advantages, and the sheet is composed with 2 outer thick metal layers and 1 thin polymer layer in between. In order to investigate its drawing characteristics, an improved cohesive model between the skin sheets was developed using a contact/interface approach. Based on the proposed model, a cup drawing process was numerically simulated using commercial FEM code ABAQUS. Numerical simulation shows that the thickness strain distribution and thinning phenomenon have similar modes on the top layer and bottom layer except at the cup bottom corner, and cohesive strength does not have severe effect to the drawing force. The drawing experiments were conducted on a hydrauic press in order to compare the whole sheet and two skin sheets thickness distribution of sandwich sheet metal cup drawing, FEM simulation result fits well with the experiment.

Volume Subject Area:
Materials
Topics:
Sheet metal, Finite element methods, Finite element model, Skin, Computer simulation, Corners (Structural elements), Damping, Metals, Polymers, Sheet materials, Simulation results, Vibration
This content is only available via PDF.
Copyright © 2008
 by ASME
You do not currently have access to this content.