Affiliation:
1. School of Aeronautics and Astronautics Purdue University West Lafayette, IN 47907
Abstract
Experimental data of the three dimensional problem of impact of a flat strip by a spherical impactor are presented and interpreted qualitatively by comparison with a plane-strain numerical analysis of an infinitely wide plate impacted by a cylindrical im pactor. The role of transverse shear stress in proximal and middle layer crack initiation is established. A detail presentation of damage is provided with exact delamination zones. The basic conclusions drawn establish a basis for further research in under standing impact induced fracture in composites.
Subject
Materials Chemistry,Mechanical Engineering,Mechanics of Materials,Ceramics and Composites
Reference8 articles.
1. Microscopic Observations of Cross Sections of Impacted Composite Laminates
2. Broutman, L.J. "Failure Mechanisms for Filament Reinforced Plastics," Modern Plastics, Vol. 42, pp. 143-150, 214-216 (1965).
3. Delamination in Quasi-Isotropic Graphite-Epoxy Laminates
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