Wood moisture content, curvatures and phase lags for bilayers with different thickness ratios in cyclic conditions.

a) Thickness of spruce and beech layer;b) Ph.lag = phase lag, present measurements for all bilayers;c) taken from Ma et al.[21], dim = dimension;d) average of radial and tangential response;e)1st row: phase lag in hours, 2nd row: phase lag in radians for comparison with the measurements of Ma et al.;f) standard deviation in parenthesis.Wood moisture content, curvatures and phase lags for bilayers with different thickness ratios in cyclic conditions.