Considering the effects of the prestressing forces (assume no loss) and the working loads (include the selfweight of the beam). Calculate the stress indicated below. Calculate ftop at midspan. (MPa), consider sign convention (- for compression, + for tension)

Considering the effects of the prestressing forces (assume no loss) and the working loads (include the selfweight of the beam). Calculate the stress indicated below. Calculate ftop at midspan. (MPa), consider sign convention (- for compression, + for tension)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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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

Considering the effects of the prestressing forces (assume no loss) and the working
loads (include the selfweight of the beam). Calculate the stress indicated below.
Calculate ftop at midspan. (MPa), consider sign convention (- for compression, + for
tension)
5 KN/m EXCLUD In6
SELFWEI6 HT
300 = P
P=300 kN
I5 M
オ
400
8e = 24 IN
m3
N.A.
800
70 主

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