Transient bending waves in anisotropic plates studied by hologram interferometry

Journal Article · Fri Dec 01 04:00:00 EST 1989 · Experimental Mechanics; (USA)

DOI:https://doi.org/10.1007/BF02323859· OSTI ID:6859170

Fallstrom, K E; Lindgren, L E; Molin, N E; Wahlin, A ^[1]

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1. Lulea, Hogskolan (Sweden)

Propagating bending waves are studied in plates made of glass-fiber reinforced polyester. Hologram interferometry, with a double pulsed ruby laser as the light source, is used to record the out of plane motion of the waves. The interferograms have an elliptic-like symmetry for an orthotropic plate, while the wave pattern for a symmetric angle-ply reinforced plate has a symmetry about the axes of reinforcements. Experimental data are compared with analytical and numerical results. The effective Young's modulus raised to power 1/4 is shown to be an important parameter for the description of the dispersive wave pattern. 9 refs.

• OSTI ID: 6859170
• Journal Information: Experimental Mechanics; (USA), Journal Name: Experimental Mechanics; (USA) Vol. 29; ISSN EXMCA; ISSN 0014-4851
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603 -- Materials-- Properties
42 ENGINEERING
420200* -- Engineering-- Facilities
Equipment
& Techniques
ANISOTROPY
BENDING
ESTERS
HOLOGRAPHY
INTERFEROMETRY
LASERS
MATERIALS
MATERIALS TESTING
NONDESTRUCTIVE TESTING
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
PLATES
POLYESTERS
POLYMERS
REINFORCED MATERIALS
REINFORCED PLASTICS
SYNTHETIC MATERIALS
TESTING
TRANSIENTS
WAVE PROPAGATION