Measurement of Poisson's ratios for yellow-poplar

Longitudinal/tangential, longitudinal/radial, tangential/radial, and radial/tangential Poisson's ratios for yellow-poplar (Liriodendron tulipifera) were determined using the white light speckle technique in experimental mechanics called the Digital Image Correlation Technique (DICT). Average va...

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Bibliographic Details
Published in:Forest products journal 1997-03, Vol.47 (3), p.78-80
Main Authors: Zink, A.G. (Virginia Polytechnic Inst. and State University, Blacksburg, VA.), Hanna, R.B, Stelmokas, J.W
Format: Article
Language:English
Subjects:
Applied sciences
CAE
Computer aided engineering
DIGITAL IMAGE CORRELATION TECHNIQUE
Exact sciences and technology
Forest products industry
LIGHT
LIRIODENDRON TULIPIFERA
Load
LUMIERE
LUZ
MEASUREMENT
Mechanical engineering
Mechanics
MEDICION
MESURE
Polymer industry, paints, wood
Properties and testing
Ratio analysis
Ratios
Strain gauges
Studies
Trees
WHITE LIGHT
WHITE LIGHT SPECKLE TECHNIQUE
Wood
Wood products
Wood. Paper. Non wovens
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Summary:Longitudinal/tangential, longitudinal/radial, tangential/radial, and radial/tangential Poisson's ratios for yellow-poplar (Liriodendron tulipifera) were determined using the white light speckle technique in experimental mechanics called the Digital Image Correlation Technique (DICT). Average values were found to compare well with other literature values where available; however, DICT allowed for calculation of Poisson's ratios from multiple measurements spanning the entire specimen rather than from one or two points per specimen. It was further discovered that for yellow-poplar. Poisson's ratio is not a constant during the loading process, but decreases with increasing load
ISSN:0015-7473
2376-9637