Wood Handbook, Wood as an Engineering Material

(Wang) #1

Table 5–3a. Strength propertiesof some commercially important woods grown in the United States (metric)a—con.


Static bending

Impact
bending
(mm)

Com-
pression
parallel
to grain
(kPa)

Com-
pression
perpen-
dicular
to grain
(kPa)

Tension
perpen-
dicular
to grain
(kPa)

Side
hard-
ness
(N)

Modulus
of
rupture
(kPa)

Modulus
of
elasticityc
(MPa)

Work to
maxi-
mum
load
(kJ m–3)

Shear
parallel
to
grain
(kPa)

Common species
names


Moisture
content

Specific
gravityb
Oak, red—con.
Willow Green 0.56 51,000 8,900 61 890 20,700 4,200 8,100 5,200 4,400
12% 0.69 100,000 13,100 101 1,070 48,500 7,800 11,400 — 6,500
Oak, white
Bur Green 0.58 50,000 6,100 74 1,120 22,700 4,700 9,300 5,500 4,900
12% 0.64 71,000 7,100 68 740 41,800 8,300 12,500 4,700 6,100
Chestnut Green 0.57 55,000 9,400 65 890 24,300 3,700 8,300 4,800 4,000
12% 0.66 92,000 11,000 76 1,020 47,100 5,800 10,300 — 5,000
Live Green 0.80 82,000 10,900 85 — 37,400 14,100 15,200 — —
12% 0.88 127,000 13,700 130 — 61,400 19,600 18,300 — —
Overcup Green 0.57 55,000 7,900 87 1,120 23,200 3,700 9,100 5,000 4,300
12% 0.63 87,000 9,800 108 970 42,700 5,600 13,800 6,500 5,300
Post Green 0.60 56,000 7,500 76 1,120 24,000 5,900 8,800 5,400 5,000
12% 0.67 91,000 10,400 91 1,170 45,300 9,900 12,700 5,400 6,000
Swamp chestnut Green 0.60 59,000 9,300 88 1,140 24,400 3,900 8,700 4,600 4,900
12% 0.67 96,000 12,200 83 1,040 50,100 7,700 13,700 4,800 5,500
Swamp white Green 0.64 68,000 11,000 100 1,270 30,100 5,200 9,000 5,900 5,200
12% 0.72 122,000 14,100 132 1,240 59,300 8,200 13,800 5,700 7,200
White Green 0.60 57,000 8,600 80 1,070 24,500 4,600 8,600 5,300 4,700
12% 0.68 105,000 12,300 102 940 51,300 7,400 13,800 5,500 6,000
Sassafras Green 0.42 41,000 6,300 49 — 18,800 2,600 6,600 — —
12% 0.46 62,000 7,700 60 — 32,800 5,900 8,500 — —
Sweetgum Green 0.46 49,000 8,300 70 910 21,000 2,600 6,800 3,700 2,700
12% 0.52 86,000 11,300 82 810 43,600 4,300 11,000 5,200 3,800
Sycamore, American Green 0.46 45,000 7,300 52 660 20,100 2,500 6,900 4,300 2,700
12% 0.49 69,000 9,800 59 660 37,100 4,800 10,100 5,000 3,400
Tanoak Green 0.58 72,000 10,700 92 — 32,100 — — — —
12% — — — — — — — — — —
Tupelo
Black Green 0.46 48,000 7,100 55 760 21,000 3,300 7,600 3,900 2,800
12% 0.50 66,000 8,300 43 560 38,100 6,400 9,200 3,400 3,600
Water Green 0.46 50,000 7,200 57 760 23,200 3,300 8,200 4,100 3,200
12% 0.50 66,000 8,700 48 580 40,800 6,000 11,000 4,800 3,900
Walnut, black Green 0.51 66,000 9,800 101 940 29,600 3,400 8,400 3,900 4,000
12% 0.55 101,000 11,600 74 860 52,300 7,000 9,400 4,800 4,500
Willow, black Green 0.36 33,000 5,400 76 — 14,100 1,200 4,700 — —
12% 0.39 54,000 7,000 61 — 28,300 3,000 8,600 — —
Yellow-poplar Green 0.40 41,000 8,400 52 660 18,300 1,900 5,400 3,500 2,000
12% 0.42 70,000 10,900 61 610 38,200 3,400 8,200 3,700 2,400


Softwoods
Baldcypress Green 0.42 46,000 8,100 46 640 24,700 2,800 5,600 2,100 1,700
12% 0.46 73,000 9,900 57 610 43,900 5,000 6,900 1,900 2,300
Cedar
Atlantic white Green 0.31 32,000 5, 200 41 460 16,500 1,700 4,800 1,200 1,300
12% 0.32 47,000 6,400 28 330 32,400 2,800 5,500 1,500 1,600
Eastern redcedar Green 0.44 48,000 4,500 103 890 24,600 4,800 7,000 2,300 2,900
12% 0.47 61,000 6,100 57 560 41,500 6,300 — — 4,000
Incense Green 0.35 43,000 5,800 44 430 21,700 2,600 5,700 1,900 1,700
12% 0.37 55,000 7,200 37 430 35,900 4,100 6,100 1,900 2,100
Northern white Green 0.29 29,000 4, 400 39 380 13,700 1,600 4,300 1,700 1,000
12% 0.31 45,000 5,500 33 300 27,300 2,100 5,900 1,700 1,400


General Technical Report FPL–GTR– 190
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