. Bulletin. Forests and forestry -- United States. (3. Mark, < 3. Lonf;lp:if pine. Leugth. 60.0 inches. Height, 3. 50 inches. Breadth, 3. 72 inches. [Number anuuiil rings per inch 56 CROSS BREAKING TEST. Strength of extreme fiber, 3 W I where /^;â-â-; = 10,230 pounds per square inch. Modulus of elasticity =1,700,000 pounds per square inch. Total resilience =.5,110 inch-pounds, Kl. Res., 1,780. Kesilieuce, per cubic inch =6..54 inch-pounds. El. Res., 2.28. July Load. Deflec- Micro- 20,1891. tion. meter. h. m. 2 58 300 .042 0. 958 â J- 0 1,000 .208 1.124 1 l.BOO .324 1.240 â¢y 2,000 .404 1.32

- Image ID: RH1XBE
Library Book Collection / Alamy Stock Photo
Image ID: RH1XBE
. Bulletin. Forests and forestry -- United States. (3. Mark, < 3. Lonf;lp:if pine. Leugth. 60.0 inches. Height, 3. 50 inches. Breadth, 3. 72 inches. [Number anuuiil rings per inch 56 CROSS BREAKING TEST. Strength of extreme fiber, 3 W I where /^;â-â-; = 10,230 pounds per square inch. Modulus of elasticity =1,700,000 pounds per square inch. Total resilience =.5,110 inch-pounds, Kl. Res., 1,780. Kesilieuce, per cubic inch =6..54 inch-pounds. El. Res., 2.28. July Load. Deflec- Micro- 20,1891. tion. meter. h. m. 2 58 300 .042 0. 958 â J- 0 1,000 .208 1.124 1 l.BOO .324 1.240 â¢y 2,000 .404 1.320 3 2,400 .4S1 1.307 4 2, 800 . .WS 1.474 ' 5 3,200 .040 1.556 8 3, 000 .721 I.B37 7 4,000 .815 1.731 8 4,400 .926 1. 842 9 4,800 1.0ff4 1.990 13 5,180 1.544 2.460. J>efIccttoTv in inclies. FINAL RECORD OF TIMBER TESTS. Mark. Lons-leaf pino 3 3 1 Wliite pine: IIG 1 3 Percent- age of moisture. Cross bending tests. I>imeD.sioDB Time. Length. Height. Breadth. Min. Inchea. inches. Jnclieg. 60.0 3.50 .3.72 15 00.0 3.74 3.75 10 Deflec- tion. Founds.\ Inches. 5,180 1,544 3,300 StriMigtli per square inch.(/) Voundt. 10.230 5,6eo Modulus of elas- city.(c) Resilience in inch- pounds per cub.inch.(r) Pounds. 1.760.000 1, 320.000 0.54 4.11 Mark. Long-leaf pine 3 3 1 "White pine: 116 1 3 Crushing endwise. Dimensions. Height. Inches. i a. 1 I" Cross 3.46 3.72 3.73 3.73 Sq. in. 112. 87 113.91 Crushing load. Pounds. 77, 71K) Strength per square inch. Crushing across grain. Dimensions. HeigM- ^^^Zl. Founds. 0, 040 3,480 Inches. 3.73 Inches. ( 3.47 I 3.93 3.72 3.93 Sg. in. f 13.63 I 14.62 Cruahing load. Pounds. 10,400 5,200 Strength per square inch. Founds. 760 360 Mark. Long-leaf pine 3 3 1 "Wliite pine: 116 1 3 Tension teats. Size of re- duced sec- tion. Sq. i». 2. .38 .41 Area. ^q. in. 0.971 Breaking load. Pounds. 11,400 Strengtli per square inch. Pounds. 11, 680 9,880 She.iring t^^ata. Total aliearing area. St/, in. 4.14 3.97 4. IC 4. 02 Breaking load. Founds. 2,

Search stock photos by tags


Similar stock images