Impact resistance of fiber compositesStress-strain curves are obtained for a variety of glass fiber and carbon fiber reinforced plastics in dynamic tension, over the stress-strain range of 0.00087-2070/sec. The test method is of the one-bar block-to-bar type, using a rotating disk or a pendulum as the loading apparatus and yielding accurate stress-strain curves up to the breaking strain. In the case of glass fiber reinforced plastic, the tensile strength, strain to peak impact stress, total strain and total absorbed energy all increase significantly as the strain rate increases. By contrast, carbon fiber reinforced plastics show lower rates of increase with strain rate. It is recommended that hybrid composites incorporating the high strength and rigidity of carbon fiber reinforced plastic with the high impact absorption of glass fiber reinforced plastics be developed for use in structures subjected to impact loading.
Document ID
19820056317
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Chamis, C. C. (NASA Lewis Research Center Cleveland, OH, United States)
Sinclair, J. H. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1982
Subject Category
Structural Mechanics
Meeting Information
Meeting: Composite materials: Mechanics, mechanical properties and fabrication