Biaxial Testing of Graphite/Epoxy Composites Containing Stress Concentrations. Part II.
Abstract
The objective of the program was to study experimentally the deformation and failure under biaxial tensile loading of graphite/epoxy plates containing circular holes and cracks of various sizes and to determine the influence of notch size on failure. The first phase of this program described in a recent report was limited to quasi-isotropic graphite/epoxy laminates. The program consisted of testing uniaxial unnotched and notched specimens and biaxial notched specimens. The approach used was to measure deformations by means of experimental strain analysis techniques, a determine strain concentrations, strain distributions and variations to failure, failure modes and strength reduction ratios. Whenever possible results were compared with analytical predictions. The objective of the second phase of this investigation described in this final report was to further study experimentally the deformation and failure of graphite/epoxy plates with stress concentrations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1977
- Accession Number
- ADA048659
Entities
People
- I. M. Daniel
Organizations
- IIT Research Institute