Answered: Knowing that connecting rod BD has a…

Knowing that connecting rod BD has a uniform cross section of area equal to 800 mm², determine the magnitude of the load P so that the normal stress in rod BD is 50 MPa.

Welding: Principles and Applications (MindTap Course List)

8th Edition

ISBN:9781305494695

Author:Larry Jeffus

Publisher:Larry Jeffus

Chapter20: Shop Math And Weld Cost

Section: Chapter Questions

Problem 24R: What is a dimensioning tolerance?

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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

Knowing that connecting rod BD has a uniform cross section of area equal to 800 mm², determine the magnitude of the load P so that the normal stress in rod BD is 50 MPa.

135 mm 240 mm
450 mm
120 mm
A
C
VP Р
B
D
510 mm.

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