3. For a 12-24-5 plywood sheet, determine the second moment of area longitudinally, and transversely, assuming...

Transcribed Image Text:

3. For a 12-24-5 plywood sheet, determine the second moment of area longitudinally, and transversely, assuming all veneers are the same thickness. I long. Ignore transverse veneers, and assume outer veneer is in the direction of the span. NA NA INA (2*1*2.43/12) + (2*(2.4* 1)* 4.82) + (1*2.43/12) = 2.3 + 110.59 + 1.15 = 114mm4/mm width I tranverse = 2*(1*2.43/12) + (2.4 * 1)* 2.42) = 30 mm4/mm width 3. For a 12-24-5 plywood sheet, determine the second moment of area longitudinally, and transversely, assuming all veneers are the same thickness. I long. Ignore transverse veneers, and assume outer veneer is in the direction of the span. NA NA INA (2*1*2.43/12) + (2*(2.4* 1)* 4.82) + (1*2.43/12) = 2.3 + 110.59 + 1.15 = 114mm4/mm width I tranverse = 2*(1*2.43/12) + (2.4 * 1)* 2.42) = 30 mm4/mm width