A Study on Fracture Toughness of Advanced Structural Composites.
Abstract
Structural fracture in homogeneous, isotropic materials is discussed. Fundamental relations associated with linear elastic fracture mechanics, based on the Griffith-Irwin approach, are presented. Fracture mechanics of fiber reinforced composites are discussed, including some fracture test results of numerous composites, including beryllium/aluminum, glass/epoxy, Scotchply, boron/aluminum and graphite/polyimide. Some of the nonhomogeneous anisotropic composites are unidirectionally reinforced; others are angle-plied. The fracture phenomenon and process in filamentary composites are detailed. Recommendations for future work on fracture of structural composites for high- performance flight vehicles are outlined. (Author, modified-PL)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1973
- Accession Number
- AD0764070
Entities
People
- George C. Chang
Organizations
- United States Naval Academy