4. A steel rod 3 ft long with a cross – sectional area of /576 ft2 is stretched between two fixed points.The tensile force is 1200 Ib at 40°F. Using E = 26 x 106 / °F, calculate:the temperature to which the stress in the bar will be 10 ksi; andthe temperature at which the stress will be zero.a.b.

A steel rod 3 ft long with a cross – sectional area of 1/576 ft² is stretched between two fixed points. The tensile force is 1200 lb at 40°F. Using E = 26 x 106 / °F, calculate: a. the temperature to which the stress in the bar will be 10 ksi; and b. the temperature at which the stress will be zero.

A steel rod 3 ft long with a cross – sectional area of 1/576 ft² is stretched between two fixed points. The tensile force is 1200 lb at 40°F. Using E = 26 x 106 / °F, calculate: a. the temperature to which the stress in the bar will be 10 ksi; and b. the temperature at which the stress will be zero.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

PROBLEM 1 A circular aluminum tube of L=600mm is loaded in by compressive forces at its ends. The outside and inside diameters are 75mm and 63mm respectively. A strain gage is placed on the outside of the tube to measure nomal strains in the longitudinal direction. E=73 GPa and Poisson's is 0.33. a. If the normal stress in the tube is 57 MPa, what is the load P? b. if the strain is 781 X 10-6, what is the shortening of the tube? What is the percent change in its cross-sectional area.
7. A steel rod 3 ft long with a cross-sectional area of 0.3 in.2 is stretched between two fixed points. The tensile force in the rod is 1200 lb at 40°F. Using a = 6.5 x 10°F andE=29 x 10° psi. a) Calculate the temperature at which the stress in the rod will be 10 ksi. b) Calculate the temperature at which the stress in the rod will be zero.
The rigid bar is supported by a smooth pin and two rods as shown. Neglect the weight of the rigid bar. The assembly is initially stress-free. Determine the stress in each rod if the temperature increases by 25°C after a load W = 100 kN is applied. The steel rod has an area of 320 mm² with a = 11.7 um/ ( m°C ) and E = 200 GPa. For the bronze rod, it has an area of 1380 mm? with a = 18.9 µm/ ( m°C ) and E = 83 GPa. Bronze | 3 m Steel | 1.5 m 1.0 m - - 2.5 m +1.5 m→
A steel wire (E = 200 GPa) of diameter d = 1.0 mm is bent around a pulley of radius Ro= 400 mm (see figure below). Ro a. What is the maximum stress in the wire? b. Does the stress increase or decrease if the radius of the pulley is increased?
A flat steel bar, 26 mm wide by 2 mm thick and 1.8 m long, is bent by couples applied at the ends so that the midpoint deflection is 27 mm. Compute the maximum stress in the bar. Use E =220 GPa. Answer must be in MPa.
A flat steel bar, 30 mm wide by 2 mm thick and 1.3 m long, is bent by couples applied at the ends so that the midpoint deflection is 27 mm. Compute the maximum stress in the bar. Use E = 220 GPa. Answer must be in MPa.
A flat steel bar, 26 mm wide by 3 mm thick and 1.7 m long, is bent by couples applied at the ends so that the midpoint deflection is 21 mm. Compute the maximum stress in the bar. Use E = 240 GPa. Answer must be in MPa.
Three aluminum rods support the rigid L-shaped bracket BCF as shown in the figure. Determine the stress in rod DE (express answer in MPa) if rod FG is cooled by 50°C. All three rods have the same cross-sectional area of 1000 mm^2. Use 73.1 GPa and 23 x 10^-6/°C for the modulus of elasticity and the coefficient of thermal expansion of aluminum, respectively.
The post shown, whose cross-sectional area is 100 x 150 mm2, rests at the middle of a circular solid steel plate. The steel plate is placed above a hollow cylinder. Both the steel plate and the cylinder have diameter of 300 mm and a thickness of 20 mm. Solve for the following: a. punching shear stress in the steel plate b. punching shear stress in the hollow cylinder c. bearing stress in the steel plate due to the post d. bearing stress in the cylinder due to the steel plate
Rods AB and BC have diameters of 2.9 mm and 4.6 mm, respectively. A force F = 2.4 kN is applied to the ring at B, as shown. (Figure 1) Determine the angle so that the average normal stress in each rod is equivalent. Express your answer to three significant figures. What is this stress? Express your answer to three significant figures and include appropriate units.
2. A copper rod of diameter 12 mm is subjected to a compressive force of 8 kN. The change in diameter happens to be 4.5 x 103 mm. Determine the strain along the length of the material and the Poisson's ratio when E = 110 GPa.
1. An axial force of 250 kN is applied to the assembly shown, made of cylindrical brass core surrounded by an aluminum shell. The axial force is applied through rigid end plates. a) Determine the normal stress in each of the metal components, given that Ebrass = 105 GPa and Ealum = 70 GPA. 100mm b) What is the axial deformation of the assembly? 200mm 200mm