Elastic Wood Properties from Dynamic Tests and Computer Modeling
Publication: Journal of Structural Engineering
Volume 118, Issue 10
Abstract
Elastic moduli for a specimen of Norway spruce (Picea abies) have been evaluated by dynamic tests and corresponding computer calculations. Modal testing of a wooden beam of structural size resulted in modal properties for 13 different modes of vibration. Corresponding modes of vibration were calculated using a finite element model based on Timoshenko beam elements with constant homogeneous properties. Similarity between experimental and theoretical values for eigenfrequencies for the fundamental axial mode of vibration required a value for Young's modulus Corresponding matching of the fundamental frequency for torsional vibration yielded The calculated eigenfrequencies for higher modes of vibration correspond very well to the experimental values. It should be noted specifically that the eigenfrequencies for edge‐wise bending modes correspond well, although the value for the shear modulus was based on a torsional mode matching.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 118 • Issue 10 • October 1992
Pages: 2677 - 2690
Copyright
Copyright © 1992 ASCE.
History
Published online: Oct 1, 1992
Published in print: Oct 1992
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