Free Edge Effects in the Measurement of Composite In-Plane Shear Properties.
Abstract
A Fourier series solution is obtained for the stresses in a symmetrically laminated orthotropic plate subjected to a uniform tangential displacement along one edge with the opposite edge clamped and the two adjacent edges stress-free. These are essentially the edge conditions imposed by the rain shear test. Results can also be applied to the determination of stresses in a certain class of bonded double lap joints. Numerical examples show the shear stress distribution to be a function of various in- plane stiffness ratios and the dimensions of the plate. In addition, normal stresses of large magnitude are found in the corners. Theoretical results are qualitatively verified on fiber reinforced rubber composites. (Author-PL)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1971
- Accession Number
- AD0724146
Entities
People
- James M. Whitney
Organizations
- Air Force Research Laboratory