Effects of indenter tips of quasi-static indentation damage of foam Sandwich Composites

摘要

The behavior of foam sandwich composites subjected to the quasi-static load has been investigated. The results revealed that the indenter tip shapes have an influence on the indentation behavior of the specimens. Failure modes were studied by sectioning the samples at the damage location and observing under an optical microscope. The primary damage mode was found to be the fiber breakage, delamination and foam crack. Knowledge of the damage resistance properties of a sandwich panel is useful for product development and material selection.