─ 12 ─ら８と同様に採取した丸太の番号ごとの比較とし，各材で最も高い値が濃い色を示す。Fig.９の半径方向のヤング率分布に関して，各試験体ともに樹皮側の６thの値が高い傾向を示し，最下段に記載した平均値でも明確にその傾向を示した。Fig.10の比例限荷重においてもFig.９のヤング率分布と同様な傾向を示した。Fig.11の半径方向の密度分布に関して，Core側が高くなる傾向が示されており，最下段の平均値でもその傾向が認められる。次にFig.12からFig.14に各試験体の半径方向と高さ方向におけるヤング率，比例限荷重，密度のそれぞれのFig. 9 Relationship between Eb（GPa） and Distance from PithPosition from Pith Pith Bark side Core 1st 2nd3rd4th5th6th Mean Specimen number of log 5 2.26 2.29 2.57 3.19 3.58 4.29 4.71 3.27 8 1.95 2.03 3.05 4.34 4.93 4.66 4.75 3.67 10 3.26 3.42 3.80 4.82 4.96 5.43 6.52 4.60 14 2.71 2.50 3.15 4.05 4.64 4.93 6.03 4.00 15 3.14 3.38 4.26 4.90 5.78 6.62 5.86 4.85 18 4.46 5.05 6.11 6.66 6.81 6.76 6.94 6.11 21 3.10 3.27 3.77 4.22 4.72 5.01 4.97 4.15 24 2.38 2.58 3.53 4.80 5.59 6.99 7.18 4.72 32 3.65 4.08 4.65 5.02 4.98 4.92 5.26 4.65 43 2.95 3.46 4.80 5.79 5.35 5.44 5.54 4.76 Mean 2.99 3.21 3.97 4.78 5.13 5.50 5.78 Fig. 12 Relationship between M. O. E. （GPa）, Distance from Pith and HeightPosition from Pith Pith →→→→→ Bark sideCore 1st 2nd 3rd 4th 5th 6th 7th Mean Hight A 3.02 3.40 4.32 5.08 5.16 5.62 5.68 6.21 4.81 B 2.94 3.30 4.00 4.83 4.89 5.52 5.85 6.03 4.67 C 3.08 3.20 3.94 4.98 5.21 5.63 6.06 6.32 4.80 D 2.88 3.07 3.72 4.51 4.90 5.27 5.44 5.98 4.47 E 3.05 3.10 3.90 4.77 5.27 5.37 5.92 6.02 4.68 F 2.94 3.17 3.94 4.51 5.37 5.51 5.85 5.98 4.66 Mean 2.99 3.21 3.97 4.78 5.13 5.49 5.80 6.09 Fig. 13 Relationship between Proportional Limit Load （Ｎ）, Distance from Pith and HeightPosition from Pith Pith →→→→→ Bark sideCore 1st 2nd 3rd 4th 5th 6th 7th Mean Hight A 645 693 802 842 871 912 849 809 803 B 591 638 698 802 823 895 879 866 774 C 620 628 745 745 855 907 852 849 775 D 549 590 665 763 839 856 903 842 751 E 616 645 707 748 933 948 940 920 807 F 576 638 692 764 891 915 937 935 793 Mean 599 638 718 777 869 905 893 870 Fig. 14 Relationship between Density（kg/m3）, Distance from Pith and HeightPosition from Pith Pith →→→→→ Bark sideCore 1st 2nd 3rd 4th 5th 6th 7th Mean Hight A 369 367 350 357 347 353 331 324 350 B 365 359 354 367 352 347 334 319 349 C 359 358 345 343 361 342 334 328 346 D 364 359 347 343 364 345 342 347 351 E 374 358 342 348 347 338 335 334 347 F 369 352 333 350 345 343 333 335 345 Mean 367 359 345 351 353 345 335 331 Fig. 10 Relationship between Proportional Limit Load （Ｎ） and Distance from PithPosition from Pith Pith Bark side Core Mean Specimen number of log 5 568 523 582 657 743 804 791 667 8 477 478 559 655 788 786 793 648 10 624 664 704 769 834 884 892 767 14 539 517 586 754 794 841 977 715 15 614 604 712 676 820 968 888 754 18 764 860 1056 1107 1195 1210 1230 1060 21 582 614 593 634 769 696 605 642 24 519 591 686 847 939 1064 1054 814 32 693 821 814 834 931 863 781 819 43 614 712 889 840 873 947 894 824 Mean 599 638 718 777 869 906 890 1st 2nd3rd4th5th6thFig. 11 Relationship between Density（kg/m3） and Distance from PithPosition from Pith Pith Bark side Core Mean Specimen number of log 5 347 362 334 344 330 350 355 346 8 331 318 319 335 345 319 316 326 10 400 412 387 394 370 347 354 381 14 343 329 320 335 348 338 367 340 15 357 345 331 329 317 337 298 331 18 431 412 411 416 385 377 362 399 21 338 325 297 295 353 308 275 313 24 335 350 345 365 362 368 353 354 32 390 360 330 326 342 325 325 343 43 394 377 377 374 373 378 336 373 Mean 367 359 345 351 353 345 334 1st 2nd3rd4th5th6th
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