The focus of this research is to characterize a new material system composed of glass fiber woven cloth and H80 foam core which has potential in a wide variety of applications encompassing aerospace, military, offshore, power production another commercial industry. Sandwich panels have been developed with and without stitching reinforcement. The stitched panels had stitches at 90 with respect to the face sheets. Several tests have been performed on the panels, namely Flexural and Tensile test. The main objective of this study is to investigate the change in Flexural stiffness with respect to stitch in sandwich structure. Experiments are conducted according to ASTM standards to determine the mechanical properties and failure modes of the H80 foam. Sandwich beams composed of open cell H80 core and glass fiber epoxy laminate face sheets are tested in the flexure condition using a three point setup. Results showed a significant increase in the flexural stiffness and strength.
Composite; Flexural test; Tensile test; laminates
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