Fig. 5From: Application of time–temperature superposition principle to Chinese fir orthotropic creepHorizontal shift factor a T (symbols) used to construct master curves at reference temperature 30 °C for the L (a), R (b), and T (c) specimens, and fit of the horizontal shift factor variation to the WLF equation (solid line) and Arrhenius law (dotted line). L (J–T effect) in a experimental data corrected by the vertical factor b T for L specimenBack to article page