4-6 4. A solid steel bar 50 mm in diameter and 1.5 m long is securedbetween rigid walls. If the stress in the bar is zero at 27°C,what will be the stress (MPa) in the bar when the temperaturerises to 42°C? Use E = 200 GPa and a = 12.5 x 10-6 m/m-°C.А. 172.5 СВ. 172.5 TC. 37.5 TD. 37.5 C5. A 12-m vertical pole has an outside diameter of 300 mm andinside diameter of 250 mm. The pole is subjected to a load thatvaries uniformly from 800 N/m at the base to 1200 N/m at thetop. Compute the maximum shearing stress (MPa) in the pole.А. 2.54В. 1.65С. 3.47D. 1.116. A 12-m vertical pole has an outside diameter of 300 mm andinside diameter of 250 mm. The pole is subjected to a load thatvaries uniformly from 800 N/m at the base to 1200 N/m at thetop. Compute the maximum flexural stress (MPa) in the pole.A. 56В. 49С. 52D. 64

“Since you have asked multiple questions, we will solve the first question for you. If you want any…

A solid stee between rigid walls. If the stress in the bar is zero at 27° what will be the stress (MPa) in the bar when the temperatur rises to 42°C? Use E = 200 GPa and a = 12.5 x 106 m/m-°C. A. 172.5 C B. 172.5 T lete ong is secur C. 37.5 T D. 37.5 C

A solid stee between rigid walls. If the stress in the bar is zero at 27° what will be the stress (MPa) in the bar when the temperatur rises to 42°C? Use E = 200 GPa and a = 12.5 x 106 m/m-°C. A. 172.5 C B. 172.5 T lete ong is secur C. 37.5 T D. 37.5 C

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter1: Tension, Compression, And Shear

Section: Chapter Questions

Problem 1.6.7P: A wine of length L = 4 ft and diameter d = 0.125 in. is stretched by tensile forces P = 600 lb. The...

See similar textbooks

Similar questions

8. A steel tube is restrained between two rigid walls 80 cm apart. At a temperature of 34°C, the steel tube is stress free. What will be the stress, in MPa, in the tube when the temperature is 28°C? The steel tube has an outside diameter of 25 mm and a thickness of 1.5 mm. Use a = 11.7 x 10° m/m-°C and E = 200 GPa. a. 8.71 b. 11.9 с. 12.5 d. 14.04
A steel rod is stretched between two walls. At 20°C, the tensile force in the rod is 3000 N. If the stress is not to exceed 130 MPa at -20°C, find the minimum allowable diameter of the rod. Use a=11.7 x 10-6/°C and E = 200 GPa. Select one: O a. 10.24 mm O b. 9.92 mm O C. 16.53 mm O d. 13.22 mm
When installed, bar AB had negligible axial stress. When the bar's temperature is 124°F the axial compressive stress is 14.4 ksi. The bar is made from a ductile metal which has the following properties: E=25x10° psi, a = 9.00x10 6 (h)/°F, and v = 0.29. Assume elastic behavior. ( in. in. В 50 in.- Determine: a. The thermal strain in the bar's axial (longitudinal) direction if it could expand freely: b. Temperature at which bar was installed: c. The total strain in the lateral direction:
21. A steel tube is restrained between two rigid walls 80 cm apart. At a temperature of 34°C, the steel tube is stress free. What will be the stress, in MPa, in the tube when the temperature is 28°C? The steel tube has an outside diameter of 25 mm and a thickness of 1.5 mm. Use a = 11.7 x 10-6 m/m-°C and E = 200 GPa. a. 8.71 b. 11.9 22. Shown is a chain carrying a load P of 10 kN. minimum required diameter d of the chain. P a. 4.48 b. 5.14 C. d. 12.5 14.04 If the allowable stress in the chain is 225 MPa, what is the C. 5.32 d. 6.02
Exercise: 1. Determine the stress in each section of the bar shown in the below figure when subjected to a tensile load of 20 kN. The central section is 30 mm square cross section; the other portions are of circular section, their diameters being indicated. What will be the total extension of the bar? For the bar material 210 GN/m² t100 250 400 20 kN 20 kN 15 20 30 2. Calculate the spring constant of a spring that needs a force of 3N to be compressed from 40cm to 35cm
5. A steel bolt through a 25-in long aluminum tube has the nut turned on until it just touches the end of the tube. No stress is introduced on the bolt or the tube. The temperature of the assembly is raised from 70 to 79 degrees Fahrenheit. The cross- sectional area of the bolt is 0.08 sq. inch and the cross-sectional area of the tube of 0.25 sq. inch. For steel: E = 30 x 106 psi, coefficient of thermal expansion = 6.5 x 10-6/°F For aluminum: E = 10 x 106 psi, coefficient of thermal expansion = 13.0 x 10-6/°F a. Find the thermal deformation (in inches) of the bolt. b. Find the thermal deformation (in inches) of the aluminum tube. c. Find the stress (in psi) induced in the bolt by the temperature change. d. Find the stress (in psi) induced in the aluminum tube by the temperature change. 1911 EDI
Internal pressure and axial tensile force are applied to an open cylindrical tank 605 mm in diameter and 3.02 mm thick, resulting in the final stresses illustrated in the Mohr's circle. If a = 40.10 MPa, b = 100.06 MPa, and c = 45.05 MPa. %3D %3D %3D 1. Determine the kPa value of the internal pressure. 2. What is the axial force's magnitude in kN? a b
The blue bar is made from steel with the following mechanical properties: Young's Modulus, E = 17x10° psi; Poisson's Ratio v = 0.31. The bar has a circular cross-section with diameter d= 0.50 in. being the length of each side. 557 lb 557 Ib 60 in. - Determine the following under the action of the axial load (assume elastic behavior): a. The bar's axial deformation, ô, in in.: b. The average axial or longitudinal strain, ELong: c. The change in the bar's diameter, in in.:
A ring made of 25 mm diameter steel bar carries a pull of 10 kN. Calculate the maximum tensile 10 kN and compressive stresses in the material of the ring. The mean radius of the ring is 15 ст. 25 тm 10 kN Fig. 18. 15 ст
1. Determine the internal stresses developed in bars JH and HY when bar JH experiences a change in temperature of -250•C. Bar JH is made of aluminum, while bar HY is made of steel. Both bars have the same cross-sectional area. Note: Pin H is connected to a wheel that is restricted to move along the inclined slope. J 450 H 1 m 250 Y 2 m Material a (/°С) E (GPa) Steel 11.9 x 10-6 200 Aluminum 22.5 x 10-6 70
1. (A). A 25mm square cross-section bar of length 300mm carries an axial compressive load of 50kN. Determine the stress set up in the bar and its change of length when the load is applied. For the bar material E = 200 GN/m. [80 MN/m², 0.12mm] 2. (A). A steel tube, 25 mm outside diameter and 12mm inside diameter, cames an axial tensile load of 40 kN. What will be the stress in the bar? What further increase in load is possible if the stress in the bar is limited to 225 MN/m?? [106 MN/m²; 45 kN]
Q1: An Iron bar has a length of 50 m when the temperature is (-20 "C) .what is the length of the bar in a summer day when the temperature is (38 C) ?Calculate the thermal stress set up in the bar on summer day.a=12 x10 C ,E=25x10 Pa.