The following beam is constructed of four wood boards as shown and resists a vertical shear force V = 500 lb, and given a nail spacing of s = 3 in: a. Calculate the horizontal shearing force per nail. b. Calculate the shear stress at the Neutral Axis 0.75in 3.0in 0.75in 4.5in .75in 3.0in

The following beam is constructed of four wood boards as shown and resists a vertical shear force V = 500 lb, and given a nail spacing of s = 3 in: a. Calculate the horizontal shearing force per nail. b. Calculate the shear stress at the Neutral Axis 0.75in 3.0in 0.75in 4.5in .75in 3.0in

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter5: Stresses In Beams (basic Topics)

Section: Chapter Questions

Problem 5.11.4P: A wood box beam is constructed of two 260 mm × 50 mm boards and two 260 mm × 25 mm boards (sec...

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Concept explainers

Combined Loading

Any functioning component, such as machine parts, structural members, pressure vessels, and so on, are all under the influence of more than one force. When anybody is under the influence of more than one force such as shear forces, bending moments, axial forces, torsion, and so on, then such body is said to be under combined loading. A very practical example of combined loading is the crankshaft of an internal combustion engine (IC engine). The crankshaft of the IC engine is under high rpm, which is caused due to the torsional forces. Due to the presence of piston, counterbalances, and internal imbalances, the crankshaft experiences lateral forces and due to the rise in temperature, the crankshaft undergoes thermal expansion, which pulls the crankshaft along the axial direction and lateral direction. The presence of unbalanced loads along the periphery of the crankshaft also induces a bending moment.

Question

The following beam is constructed of four wood boards as shown and resists a vertical shear
force V = 500 lb, and given a nail spacing of s = 3 in:
a. Calculate the horizontal shearing force per nail.
b. Calculate the shear stress at the Neutral Axis
0.75in
3.0in
0.75in
4.5in
0.75in
3.0in

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