Example 1: A beam with an inverted tee-shaped cross section is subjected to positive bendingmoments of Mz = 5 kN m. Determine:(a) the centroid location, the moment of inertia about the z axis, and the controlling sectionmodulus about the z axis.(b) the bending stress at points H and K. State whether the normal stress is tension or compression.(c) the maximum bending stress produced in the cross section. State whether the stress is tensionor compression.NISNTSOSIOSI(7)120 mm

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Answered: d cross section is subjected to…

d cross section is subjected to positive bending a about the z axis, and the controlling section ether the normal stress is tension or compression. cross section. State whether the stress is 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

Example 1: A beam with an inverted tee-shaped cross section is subjected to positive bending
moments of Mz = 5 kN m. Determine:
(a) the centroid location, the moment of inertia about the z axis, and the controlling section
modulus about the z axis.
(b) the bending stress at points H and K. State whether the normal stress is tension or compression.
(c) the maximum bending stress produced in the cross section. State whether the stress is tension
or compression.
NIS
NTS
OSI
OSI
(7)
120 mm

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