Effect of Transversely Low-Velocity Impact on Graphite/Epoxy Laminated Composites
Final rept. 1 Oct 1987-30 Sep 1990
STANFORD UNIV CA DEPT OF AERONAUTICS AND ASTRONAUTICS
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An investigation was performed to study the damage in GraphiteEpoxy laminated composites resulting from transversely low-velocity impact. Matrix cracking and delaminations were the primary concern of the study. This research was divided into two sequential steps 1 characterization of impact damage, and 2 development of an analytical model for estimating impact damage in composites. A unique impact tester was developed for the study. The major characteristic of the tester is the design of a rectangular barrel so that the impactor can be designed in two parts a nose and a base. Accordingly, different types of impact damage can be produced by appropriately selecting the nose shape of the impactor.
- Laminates and Composite Materials