Problem #2: A steel bolt with a diameter of 8 mm fits through an aluminum sleeve with and outer diameter d. = 13 mm and an inner diameter d; = 10 mm. The apparatus is snug-fit and stress-free at an initial temperature of 20° C. If the apparatus is slowly heated to 110° C, find the axial stress in the bolt and the sleeve, and state whether each is in tension or compression. You may ignore the thickness of the washers at either end of the sleeve. Aluminum Young's Modulus (GPa) 70 Coeff. Thermal Exp. (/°C) | 23×10-6 Steel 200 14x10-6

Problem #2: A steel bolt with a diameter of 8 mm fits through an aluminum sleeve with and outer diameter d. = 13 mm and an inner diameter d; = 10 mm. The apparatus is snug-fit and stress-free at an initial temperature of 20° C. If the apparatus is slowly heated to 110° C, find the axial stress in the bolt and the sleeve, and state whether each is in tension or compression. You may ignore the thickness of the washers at either end of the sleeve. Aluminum Young's Modulus (GPa) 70 Coeff. Thermal Exp. (/°C) | 23×10-6 Steel 200 14x10-6

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

Pressure Vessels

The term pressure vessel refers to a closed container that contains gas or liquid at a different pressure than environment pressure. The pressure vessels have a wide scale of applications in our day-to-day lives and other industrial places. Some common examples of pressure vessels are gas cylinders, autoclaves, compressor vessels, etc.

Question

Problem #2: A steel bolt with a diameter of 8 mm fits through an aluminum sleeve with and
outer diameter do 13 mm and an inner diameter di 10 mm. The apparatus is snug-fit and
stress-free at an initial temperature of 20° C. If the apparatus is slowly heated to 110° C, find the
axial stress in the bolt and the sleeve, and state whether each is in tension or compression. You
may ignore the thickness of the washers at either end of the sleeve.
Aluminum
Young's Modulus (GPa)
70
Coeff. Thermal Exp. (/°C) | 23×10-6
Steel
200
14x10-6

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3) The rigid horizontal bar AB is supported by three vertical rods as shown in the figure and carries the load of 110 kN. The system is stress free before the load is applied. After the load was applied, the temperature of all wires is raised by 20°C. Use a = 12x10-6/°C for steel, a = 18x10-6/°C for copper and a = 20x10-6/°C_for brass. Neglecting the weight of the bar AB, determine the location of the 110 kN force in order that AB remains horizontal. copper bar: A=195mm? steel bar: brass bar: A=130mm? A=325mm A D 110 kN Note: copper=110 GPA Brass=97 GPA Steel= 200 GPA 3.00m 2.00m 1.80m 1.20m 1.50m
Q4: A composite bar is constructed from a steel rod of 25 mm diameter surrounded by a copper tube of 50 mm outside diameter and 25 mm inside diameter. The rod and tube are joined by two 20 mm diameter pins as shown in Fig, below. Find the shear stress set up in the pins if, after pinning, the temperature is raised by 50°C.
SHOW ILLUSTRATION AND SOLUTION Problem 1: A steel rod with a cross - sectional area of 150 mm2 is stretched between 2 fixed supports. The tensile load at 20 oC is 5 kN. Use E = 200 GPa and  = 11.7 x 10- 6 /oC 1. At what temperature will the stress be zero?2. What will be the stress at - 20
Calculate the tensile force on the wire following the figure and given data below.
this is about thermal stress
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Problem 1: A steel rod with a cross-sectional area of 0.20 in´ is stretched between two fixed points. The tensile load at 65°F is 1250 lb. What will be the stress at 0°F? At what temperature will the stress be zero? Assume a = 6.5×10° in / (in.°F) and E = 29 x 10° psi.
Tassimo mikanikium
need correct
None