May 2012
Intermediate to advanced
485 pages
10h 45m
English
Content preview from Strength of Materials
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SOLVED UNIVERSITY QUESTIONS
SOLVED PROBLEM 9.14
A steel cylindrical shell 3 m long which is closed at its ends, had an internal diameter of 1.5 m and a wall thickness of 20 mm. Calculate the circumferential and longitudinal stresses induced and also the change in dimensions of the shell if it is subjected to an internal pressure of 1.0 N/mm2. Assume E = 200 kN/mm2. Poisson’s ratio = 0.3 (Anna Univ., May 2006, ME).
Solution:
Given data: Length of shell, l = 3 m, diameter d = 1.5 m, internal pressure, p = 1.0 N/mm2 and thickness t = 20 mm.
| Circumferential stress, |  |
| Longitudinal stress, | |
| Maximum shear stress, | |
| Change in diameter, | |
| i.e., ... |