Materials Science And Engineering Properties
1st Edition
ISBN: 9781111988609
Author: Charles Gilmore
Publisher: Cengage Learning
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Chapter 9, Problem 9.14P
To determine
The number of hours the turbine blade can go without failure.
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A steel rod, which is free to move, has a length of 200 mm and diameter of20 mm at a temperature of 15°C. If the rod is heated uniformly to 115°C,determine the length and the diameter of this rod to the nearest micron atthe new temperature if the linear coefficient of thermal expansion of steel is12.5 * 10-6 m/m/°C. Is there a stress on the rod at 115°C?
A 1-m long steel bar(E = 200 GPa) of 10x10mm dimension fixed at both ends is heated by 90 ᴼC from initially 30 ᴼC. What is the normal stress, in MPa, induced in the system due to change in temperature? Use α= 12x10-6 per ᴼC.
A cylinder tank with 10 inches in diameter contains an oxygen gas at 2500 psi. Calculate the required wall thickness in millimeter under stress of 28000 psi.
Chapter 9 Solutions
Materials Science And Engineering Properties
Ch. 9 - Prob. 1CQCh. 9 - Prob. 2CQCh. 9 - Prob. 3CQCh. 9 - Prob. 4CQCh. 9 - Prob. 5CQCh. 9 - Prob. 6CQCh. 9 - Prob. 7CQCh. 9 - Prob. 8CQCh. 9 - Prob. 9CQCh. 9 - Prob. 10CQ
Ch. 9 - Prob. 11CQCh. 9 - Prob. 12CQCh. 9 - Prob. 13CQCh. 9 - At temperatures above the equi-cohesive...Ch. 9 - Prob. 15CQCh. 9 - Prob. 16CQCh. 9 - Prob. 17CQCh. 9 - Prob. 18CQCh. 9 - Prob. 19CQCh. 9 - Prob. 20CQCh. 9 - Prob. 21CQCh. 9 - Prob. 22CQCh. 9 - Prob. 23CQCh. 9 - Prob. 24CQCh. 9 - Prob. 25CQCh. 9 - Prob. 26CQCh. 9 - Prob. 27CQCh. 9 - Prob. 28CQCh. 9 - Prob. 29CQCh. 9 - Prob. 30CQCh. 9 - Prob. 31CQCh. 9 - Prob. 32CQCh. 9 - Prob. 33CQCh. 9 - Prob. 34CQCh. 9 - Prob. 35CQCh. 9 - Prob. 1ETSQCh. 9 - Prob. 2ETSQCh. 9 - Prob. 3ETSQCh. 9 - Prob. 4ETSQCh. 9 - Prob. 5ETSQCh. 9 - Prob. 6ETSQCh. 9 - Prob. 7ETSQCh. 9 - Prob. 8ETSQCh. 9 - Prob. 9ETSQCh. 9 - Prob. 10ETSQCh. 9 - Prob. 11ETSQCh. 9 - Prob. 12ETSQCh. 9 - Prob. 9.1PCh. 9 - Prob. 9.2PCh. 9 - Prob. 9.3PCh. 9 - Prob. 9.4PCh. 9 - Prob. 9.5PCh. 9 - Prob. 9.6PCh. 9 - Prob. 9.7PCh. 9 - Prob. 9.8PCh. 9 - Prob. 9.9PCh. 9 - Prob. 9.10PCh. 9 - For silver at a tensile stress of 7 MPa and a...Ch. 9 - For germanium at a tensile stress of 410 MPa and a...Ch. 9 - Prob. 9.13PCh. 9 - Prob. 9.14PCh. 9 - Prob. 9.15PCh. 9 - Prob. 9.16PCh. 9 - Prob. 9.17PCh. 9 - Prob. 9.18PCh. 9 - Prob. 9.19PCh. 9 - Prob. 9.20PCh. 9 - Prob. 9.21PCh. 9 - Prob. 9.22P
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- A metal bar of length 100 mm is inserted between two rigid supports and its temperature is increased by 10°C. If the coefficient of thermal expansion is 12 x 10-6 per °C and the Young's modulus is 2 x 105 MPa, the stress in the bar isarrow_forwardA 20m diameter spherical tank is to be used to store gas. The shell plating is 10 mm thick and the working stress of the material, that is, the maximum stress to which the material should be subjected, is 125 MPa. What is the maximum permissible gas pressure?arrow_forwardsteel rod, which is free to move, has a length of 200 mm and diameter of20 mm at a temperature of 15°C. If the rod is heated uniformly to 115°C,determine the length and the diameter of this rod to the nearest micron atthe new temperature if the linear coefficient of thermal expansion of steel is12.5 X 10-6 m/m/°C. Is there a stress on the rod at 115°C?arrow_forward
- A steel rod, which is free to move, has a length of 200 mm and diameter of 20 mm at a temperature of 15°C. If the rod is heated uniformly to 115°C,determine the length and the diameter of this rod to the nearest micron at the new temperature if the linear coefficient of thermal expansion of steel is 12.5 * 10-6m/m/C. Is there a stress on the rod at 115°C?If the rod is snugly fitted against two immovable nonconducting walls at a temperature of 15°C and then heated uniformly to115°C, what is its length at 115°C? If the modulus of elasticity of steel is207 GPa, what is the stress induced in the bar? Is this stress tension or compression?arrow_forwardA thin-walled steel tank has an outside diameter of 600mm and a length of 3m. It is subjected to an internal pressure of 2MPa.9. What is the minimum thickness of the tank if the allowable design stress is 75MPa?10. If the thickness of the tank is 8mm, determine the circumferential stress in the tank.arrow_forwardA steel plate used for polymer forming is to be bent into a circular shape having an inside radius of 10 m. What maximum thickness can be used for the plate if the normal stress is not to exceed 267 MPa? Assume that the modulus of elasticity for the steel is 201 GPa.arrow_forward
- One aluminium rod joint together with steel and bronze rods loaded with axial load as shown in Figure 3. Calculate normal stress in each materials if P = 3kN.arrow_forwardA steel bar 25cm long of rectangular cross section 25mm by 50mm is subjected to a uniform tensile stress of 200N/m^2 along it's length.find the changes in dimension.E=205000N/mm^2, poison ratio=0.3arrow_forwardDetermine the outside diameter of hallow steel tube that will carry a tensile load of 500kN at a stress of (11+150) MPa. Assume the wall thickness to be 1/10 of the outside diameter *arrow_forward
- A copper rod of cross-sectional area 0.500 cm2 and length 1.00 m is elongated by 2.00 * 10-2 mm, and a steel rod of the same crosssectional area but 0.100 m in length is elongated by 2.00 * 10-3 mm . (a) Which rod has greater tensile strain? (i) The copper rod; (ii) the steel rod; (iii) the strain is the same for both. (b) Which rod is under greater tensile stress? (i) The copper rod; (ii) the steel rod; (iii) the stress is the same for both.arrow_forwardA 25m steel rod with diameter of 20 mm is secured between rigid supports at both ends. If there is no stress at a temperature of 20oC, E = 200GPa.6. Compute the stress when the temperature drops to 0oC, if it has a coefficient of thermal expansion of 0.0000117 m/moC. 7. Compute the strain of the rod if the rod supports yield and move together a distance of 0.5mm as temperature drops.8. Compute the stress in the rod if the supports yield and move together a distance of 0.5mm as the temperature drops.arrow_forwardmechanics deformable bodies 1. A hollow steel shaft has an outside diameter of 220 mm and an inside diameter of 200 mm. Which of the following nearly gives the torque in kN-m that will cause stress of 75.5 MPa in the shaft?arrow_forward
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