This document provides a summary of topics covered in a Mechanics of Solids tutorial, including pressure vessels, combined loadings, stress and deflection analysis problems. Problems 1-3 cover pressure vessels and determining stresses in pipes under various internal pressures. Problems 4-7 analyze combined loadings on beams, bands and links, determining stresses, deflections, and using moment area theorems.
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Tutorial 9
1. Department of Aerospace Engineering
AE 212 Mechanics of Solids
Tutorial 9 Date 29/10/2012 Topics covered: Pressure Vessels and Combined Loadings
1. The open ended pipe has a wall thickness of 2 mm and an internal diameter of 40 mm. Calculate the
pressure that ice exerted on the interior wall of the pipe to cause it to burst in the manner shown.
The maximum stress that the material can support at freezing temperature is .Show
the stress acting on a small element of material just before the pipe fails.
2. The open ended polyvinyl chloride pipe has an inner diameter of 40 mm and thickness of 2 mm. If it
carries flowing water at 60 N/mm2 pressure, determine the state of stress in the walls of the pipe. If
the flow of water within the pipe is stopped due to the closing of a valve, determine the state of
stress in the walls of the pipe. Neglect the weight of the water. Assume the supports only exert
vertical forces on the pipe.
3. The ring having the dimensions shown, is placed over a flexible membrane which is pumped up with
a pressure p. Determine the change in the internal radius of the ring after this pressure is applied.
The modulus of elasticity for the ring is E.
4. The steel band is 2 cm wide and is secured around the smooth rigid cylinder. If the bolts are
tightened so that the tension in them is 400 N, determine the normal stress in the band, the pressure
exerted on the cylinder and the distance the half the band stretches. E=210GPa
2. 5. The cylinder of negligible weight rests on a smooth floor. Determine the eccentric distance at
which the load can be placed so that the normal stress at pint A is zero.
6. If P=15kN, plot the distribution of stress acting over the cross section of the offset link.
7. The bar has a diameter of 40 mm. If it is subjected to the two force components at its ends as shown,
determine the state of stress at point A and show the results on a differential volume element
located at this point.
3. 1. Determine the maximum deflection using moment area theorems for the following beams.
4. 2. Determine the elastic curve for beam using the coordinates specified and determine the
maximum slope and maximum deflection. EI is constant.
3. The beam is made of ceramic material.In order to obtain its modulus of elasticity,it is
subjected to elastic loading as shown below.If the moment of inertia is I and the beam has
measured maximum deflection of ,determine E.
4. The simply supported shaft has a moment of inertia of 2I for region BC and a moment of
inertia of I for regions AB and CD. Determine the maximum deflection of the shaft due to the
load P. Modulus of elasticity is E.
5. 5. Determine the deflection at the end B of the clamped steel strip. The spring has a stiffness of
k=2 N/mm. The strip is 5 mm wide and 10 mm high. Also draw the shear and moment
diagrams for the strip.
6. If the bearing exerts only vertical reactions on the shaft, determine the slope at the bearings
and the maximum deflection of the shaft. EI is constant. Use Moment Area Theorems.