Dynamic and acoustic properties of beams of composite material | Zendy

Shiva Sander-Tavallaey | Zendy

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Dynamic and acoustic properties of beams of composite material

Author(s) -

Shiva Sander-Tavallaey

Publication year - 1998

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.422148

Subject(s) - composite number , modal , materials science , boundary value problem , beam (structure) , modal analysis , acoustics , boundary (topology) , structural engineering , resonance (particle physics) , composite material , vibration , physics , mathematics , mathematical analysis , engineering , particle physics

Modern engineering techniques require the use of more sophisticated and optimized structural design. One way towards this aim is the use of materials which in some way optimize their inherent properties. A concept which suits this purpose very well is composite/sandwich material. Sandwich/composite materials find numerous applications where high strength and low weight are important criteria. The dynamic behavior of a sandwich beam with different boundary conditions has been investigated. Measurements have been carried out. Free‐free and clamped‐clamped boundary conditions were included. Modal analysis has been used to estimate resonance frequencies and modal parameters. Further, acoustical parameters of a composite plate are measured. An analytical model for prediction of wave propagation constants in sandwich/composite structure is presented. Measured and predicted results are compared.

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