Ultrasound and Wood Science at the Forestry Research Centre in Nancy, France, for a period of twenty years, between 1979 and 1999

Topical Issue - Development of European Acoustics in 20th Century

Open Access

Table 19.

Poisson ratios calculated with data from ultrasonic measurements at 1 MHz [57].

Species
Species	Density	Violin	Poisson ratios			Specimens’ origin and age
	(kg/m³)	Sample	ν LR	ν LT	ν RT	Years	Origin
Spruce (Picea spp.)
P. abies	400	P1	0.022	0.001	0.761	7	Switzerland
P. rubens	485	P3	0.006	0.004	0.681	85	Vermont US
P. sitchensis	370	P6	0.048	0.035	0.411	15	Alaska US
P. sitchensis	437	P4	−0.018	0.052	0.670	15	Alska US
P. engelmani	357	P5	−0.003	0.019	0.770	Very old	Colorado US
Fiddle back maple (Acer spp.)
A. Pseudoplatanus	670	A7	0.081	0.140	0.333	1	Vermont US
A. platanoides	740	A3	0.055	0.260	0.106	35	New Hamp.
A. macrophylum	600	A6	0.057	0.069	0.228	15	Oregano US
A. saccharinum	700	A1	0.123	0.087	0.228	25	Germany
A. rubrum	560	A2	0.188	0.111	0.226	35	Vermont US

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