Determine the stress in each section of the bar shown below, which is subjected to an axial tensile load of (20KN). The central section is 30 mm Square Cross -Section; the other portions are of circular section, their diameters being indicated. what will be the total extension of the bar? For the bar material (E = 210 GN/m²). 250 100 400 mm * 1 20KN 0 20 KN 20 * 2 130mm 115

Determine the stress in each section of the bar shown below, which is subjected to an axial tensile load of (20KN). The central section is 30 mm Square Cross -Section; the other portions are of circular section, their diameters being indicated. what will be the total extension of the bar? For the bar material (E = 210 GN/m²). 250 100 400 mm * 1 20KN 0 20 KN 20 * 2 130mm 115

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

Determine the stress in each section of the
bar shown below, which is subjected to an axial tensile
load of (20KN). The central section is 30 mm Square cross
-Section; the other portions are of circular section, their
diameters being indicated. what will be the total extension
of the bar? For the bar material (E = 210 GN/m²).
250
100
400 mm
* *
↓
20KN
20 KN
↓
20
0 2
30mm
3
115

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