Transverse Compressional Damping in the Vibratory Response of Elastic-Viscoelastic-Elastic Beams.
Abstract
The effects of transverse compressional damping on the vibratory response of three-layer elastic-viscoelastic-elastic beams are considered both analytically and experimentally in a mechanical impedance format. The relative importance of this type of damping is assessed by comparison to shear damping mechanisms inherent in the composite using the Mead and Markus model. Results suggest the effects from compressional damping have a relatively narrow frequency bandwidth centered at the compressional (delamination) frequency, omega sub c, of the composite. Compressional damping is shown to have a minimal effect on the transverse damping response of thin three-layer damped beams for frequencies significantly less than omega sub c, where a shear damping model provides a better description of dynamic response. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1978
- Accession Number
- ADA054769
Entities
People
- B. E. Douglas