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This thesis describes an experimental apparatus called the Tuned Excitation Launch Mechanism (TELM) that measures the free decay of beam specimens launched into simulated zero-gravity conditions. Various materials were tested including aluminum, graphite/epoxy composites, and metal matrix composites. For aluminum specimens, damping followed the Zener model when frequency was above the relaxation frequency but showed stress dependence at lower frequencies. Graphite/epoxy [0] laminates exhibited little freque

Author

alirezaaghalari1980

Language

EN