The Effect of Voids on the Mechanical Properties of High Modulus Graphite Fiber/Epoxy - Reinforced Composites.
Rept. for 26 Aug 69-26 Mar 70,
AVCO CORP LOWELL MA SYSTEMS DIV
Pagination or Media Count:
The report presents the results of a detailed investigation of various methods of characterizing voids in graphite epoxy composites. The importance of such studies is the necessity to describe voids for our correlation of destructive and non-destructive measurements and in order to apply current theoretical results. Studies of void effects were extended by fabrication of more than forty laminate panels with void fractions ranging up to 11 and for fiber contents varying from 50 to 73 volume percent. Subsequent destructive and non-destructive testing provided correlations with shear, flexure, and compression response. The main contribution here was the isolation of fiber content and void fraction influences and interactions. Of particular interest are the investigations of shear wave phenomena. Author
- Laminates and Composite Materials