Improved damping in composite tubes through stress coupling and co-cured damping layers
Abstract
A unique tube design which uses the stress coupling effects inherent in composite materials to induce large shear strains in cocured damping layers was studied analytically and experimentally. Varying the ply orientation angle of the composite material along the length of the tube increased the regions of high shear. The governing differential equations were derived and solved exactly. A computer program was written to calculate tube stiffness and loss factor. Preliminary results indicate that this design produces tubes with high damping, high stiffness, low weight, and which can be mounted using simple end fixtures.
- Publication:
-
36th International SAMPE Symposium and Exhibition
- Pub Date:
- 1991
- Bibcode:
- 1991sampesymp..373O
- Keywords:
-
- Dynamic Structural Analysis;
- Pipes (Tubes);
- Stress Analysis;
- Vibration Damping;
- Computer Programs;
- Coupled Modes;
- Curing;
- Differential Equations;
- Ply Orientation;
- Stiffness;
- Structural Mechanics