Transient bending waves in plates studied by hologram interferometry

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

DOI:https://doi.org/10.1007/BF02323854· OSTI ID:7140458

Fallstrom, K E; Gustavsson, H; Molin, N E; Wahlin, A ^[1]

---

1. Lulea, Hogskolan (Sweden)

Hologram interferometry, with a double pulsed ruby laser as the light source, was used to study propagating bending waves in aluminum and wood plates. The experimental results for the isotropic plate compare favorably with analytical results derived from the Kirchhoff plate equation with a point impact of finite duration. A formal solution is obtained for a point force with an arbitrary time dependence. For times much larger than the contact time, the plate deflection is shown to be identical to that from a Dirac pulse applied as the mean contact time. 10 refs.

• OSTI ID: 7140458
• 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
360103 -- Metals & Alloys-- Mechanical Properties
360603 -- Materials-- Properties
42 ENGINEERING
420200* -- Engineering-- Facilities
Equipment
& Techniques
ALUMINIUM
BENDING
ELEMENTS
HOLOGRAPHY
INTERFEROMETRY
LASERS
MATERIALS TESTING
METALS
NONDESTRUCTIVE TESTING
PLATES
STRESSES
TESTING
TRANSIENTS
WAVE PROPAGATION
WOOD