SINGLE AND MULTIPLE IMPACT BEHAVIOR OF A CFRP LAMINATE

Citation
Ms. Found et Ic. Howard, SINGLE AND MULTIPLE IMPACT BEHAVIOR OF A CFRP LAMINATE, Composite structures, 32(1-4), 1995, pp. 159-163
Citations number
15
Categorie Soggetti
Materials Sciences, Composites
Journal title
ISSN journal
02638223
Volume
32
Issue
1-4
Year of publication
1995
Pages
159 - 163
Database
ISI
SICI code
0263-8223(1995)32:1-4<159:SAMIBO>2.0.ZU;2-Z
Abstract
Single and repeated impact tests have been conducted on a thin (0, 45, 0) CFRP laminate using an instrumented dropweight impact rig. For sin gle impacts the data suggest that the initiation of failure is governe d by the impact force rather than the impact energy and a limiting max imum force of 570 N was observed for our circularly clamped plates. Ch anges in the rate of increase in impact force could be related to chan ge in damage with increasing impact energy. Damage caused by repeated impacts at energies of 0.54 and 0.73 J did not produce changes in the peak impact force. However a second impact at 0.93 J produced a signif icant reduction in the peak force and an increase in impact duration.