5 results

Comparing usefulness of acoustic measurements on standing trees for segregation by timber stiffness.

Conference Proceeding
Gil-Moreno, D., & Ridley-Ellis, D. (2015)
Comparing usefulness of acoustic measurements on standing trees for segregation by timber stiffness. In R. J. Ross, R. Gonçalves, & X. Wang (Eds.), Proceedings: 19th International Nondestructive Testing and Evaluation of Wood Symposium (378-385
The paper presents a comparison of standard procedures to measure acoustic stiffness of standing trees and logs. The aim is to see how useful they are for predicting the prope...

Variables affecting the stiffness and distortion of Sitka spruce.

Thesis
Reynolds, T. N. Variables affecting the stiffness and distortion of Sitka spruce. (Thesis)
Edinburgh Napier University. Retrieved from http://researchrepository.napier.ac.uk/id/eprint/5265
Inherent in the structure of timber are features affecting dimensional stability, stiffness and strength. These include knots, compression wood and spiral grain. Physical char...

Random acts of elasticity: MoE, G and EN408.

Conference Proceeding
Ridley-Ellis, D., Moore, J. & Khokhar, A. M. (2009)
Random acts of elasticity: MoE, G and EN408
The paper examines the variation in modulus of elasticity (MoE) and shear modulus (G) within sawn timber and the implications for testing timber in accordance with EN408:2003....

Determining the Shear Modulus of Sitka Spruce from Torsion Tests

Journal Article
Khokhar, A. M., Zhang, H., Ridley-Ellis, D., & Moore, J. (2008)
Determining the Shear Modulus of Sitka Spruce from Torsion Tests. Timber Engineering,
This paper presents details of the experimental method, and preliminary results from, a series of torsion tests undertaken to evaluate the shear modulus of Sitka spruce (Picea...

An inexpensive instrument to measure the dynamic response of standing trees to wind loading

Journal Article
Moore, J. R., Gardiner, B. A., Blackburn, G. R. A., Brickman, A., & Maguire, D. A. (2005)
An inexpensive instrument to measure the dynamic response of standing trees to wind loading. Agricultural and forest meteorology, 132(1-2), 78-83. doi:10.1016/j.agrformet.2005.07.007
A relatively inexpensive caliper type strain-gauge transducer was developed for measuring the dynamic behavior of tree stems and branches subjected to wind loading. Laboratory...