Effects of Contour Cuts on Shear Properties of Ductile Foam Cores

摘要

Ductile foam cores have been more prominent in the marine industry due to increased energy absorption and higher strain to failure properties. As a result of the curvature and complexity of marine applications, these ductile cores are cut and scored. This study evaluates the effect of contour cuts on shear properties of common closed-cell ductile foam cores. Sandwich laminates constructed with polyvinyl chloride (PVC) and styrene acrylonitrile (SAN) foam core, which consisted of typical contour cuts, were examined in this study. The facings of the sandwich specimens were composed of E-glass reinforcement in a vinyl ester matrix. The panels were subjected to a 4-point beam test in accordance with ASTM C393 and the ASTM C273 standard shear test, to determine the shear properties.