Impact Resistance of Fiber Composites: Energy-Absorbing Mechanisms and Environmental Effects

CC Chamis; JH Sinclair

doi:10.1520/STP32798S

SYMPOSIA PAPER Published: 01 January 1985

STP32798S

Impact Resistance of Fiber Composites: Energy-Absorbing Mechanisms and Environmental Effects

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Energy-absorbing mechanisms are identified and evaluated using several approaches. The energy-absorbing mechanisms considered are those in unidirectional composite beams subjected to impact. The approaches used include mechanistic models, statistical models, transient finite-element analysis, and simple beam theory. Predicted results are correlated with experimental data from Charpy impact tests. The environmental effects on impact resistance are also evaluated. Working definitions for energy-absorbing and energy-releasing mechanisms are proposed and a dynamic fracture progression is outlined. Possible generalizations to angleplied laminates are described.

Author Information

Chamis, CC

National Aeronautics and Space Administration, Lewis Research Center, Cleveland, OH

Sinclair, JH

National Aeronautics and Space Administration, Lewis Research Center, Cleveland, OH

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Developed by Committee: D30

Pages: 326–345

DOI: 10.1520/STP32798S

ISBN-EB: 978-0-8031-4929-8

ISBN-13: 978-0-8031-0436-5

Impact Resistance of Fiber Composites: Energy-Absorbing Mechanisms and Environmental Effects

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