Fig. 3
The effects of density on elastic modulus, strength, and failure strain of the samples with the annual ring inclinations of 0°, 45°, and 90° in the lateral tension. The numbers mean wood species, 1: sugi, 2: hinoki, 5: kaya, 6: yamaguruma, 7: buna, 8: hoonoki, 9: keyaki, and 10: arakashi. The numbers are added beside the plots in the result of either temperature. Open plots, samples measured at 25 °C; filled plots, samples measured at 80 °C. R2 mean contribution ratio and error bars indicate 95% confidence interval. The symbols in round brackets beside R2 mean the symbols with linear regression