Vibration of Cylindrical Shells of Bimodulus Composite Materials.
Abstract
A theory is formulated for the small-amplitude free vibration of thick, circular cylindrical shells laminated of bimodulus composite materials, which have different elastic properties depending upon whether the fiber-direction strain is tensile or compressive. The theory used is the dynamic, shear deformable (moderately thick shell) analog of the Sanders best first approximation thin-shell theory. By means of tracers, the analysis can be reduced to various simpler shell theories, namely Love's first approximation, and Donnell's shallow-shell theory. As an example of the application of the theory, a closed-form solution is presented for a freely supported panel or complete shell. To validate the analysis, numerical results are compared with existing results for various special cases. Also, the effect of the various shell theories, thickness shear flexibility, and bimodulus action are investigated. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1980
- Accession Number
- ADA092197
Entities
People
- Charles W. Bert
- M Kumar
Organizations
- University of Oklahoma