The Behavior of Advanced Filamentary Composite Plates with Cutouts.
Abstract
The results of an analytical and experimental program to investigate the behavior of advanced composite plates with cutouts are presented. Classi-cal and numerical analyses of anisotropic plates are compared with data from composite panels instrumented with strain gages, photoelastic coatings, and moire fringe multiplication techniques. A finite element analysis program is used to examine elastic and plastic interlaminar shear at free edges in composite laminates. The behavior of fiberglass-epoxy, graphite-epoxy, and boron- epoxy laminates with holes is examined for uniaxial and biaxial tension. The compressive behavior of graphite-epoxy and boron-epoxy laminates with holes is discussed. Test and analysis results for boron-epoxy laminates demonstrate the influence of such variables as fiber orientation, stacking sequence, load history, hole roughness, hole shape, diameter/width ratio, diameter/thickness ratio, loading rate, and hole reinforcement. Data and recommendations for design are discussed. (Author-PL)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1973
- Accession Number
- AD0764362
Entities
People
- Isaac M. Daniel
- James B. Whiteside
- Robert E. Rowlands
Organizations
- Grumman