At room temperature the gap between bar A and bar B shown in Fig. 8.54 is 0.2 mm. What are the stresses developed in the bars, if temperature rise is 30°C ? Given: A. = 800 mm² E. = 2 x 10° N/mm? a = 12 x 106/°C = 600 mm² A, E, = 1 x 10° N/mm? a, = 23 × 106 °C L, = 200 mm. %3D Lu = 250 mm [Ans. P. = 7.15 N/mm² ; p, = 9.53 N/mm²] Bar A Bar B 250 mm 200 mm-

At room temperature the gap between bar A and bar B shown in Fig. 8.54 is 0.2 mm. What are the stresses developed in the bars, if temperature rise is 30°C ? Given: A. = 800 mm² E. = 2 x 10° N/mm? a = 12 x 106/°C = 600 mm² A, E, = 1 x 10° N/mm? a, = 23 × 106 °C L, = 200 mm. %3D Lu = 250 mm [Ans. P. = 7.15 N/mm² ; p, = 9.53 N/mm²] Bar A Bar B 250 mm 200 mm-

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

See similar textbooks

Similar questions

Problem 2.3 A machine bracket is loaded with an inclined force of 1000 N as shown in the figure 1000N 200mm -A- CHAPTER 250mm 1000N A 450 50mm a) Find the principal stresses at point A. b) Show the results on a properly oriented element.
A wrought iron pipe, 12-foot long, is rigidly fastened between two walls. Find the stress in ksi developed in the pipe due to a temperature rise of 83 degrees F. (Use E = 10,000 ksi and α = 6.4 x 10^-6 in/in/*F)
Example 3.8. A lever is keyed to a shaft of 100 mm diameter. The width of the key is 12 mm and the length is 50 mm. Find the load that can be applied at a radius of 1.2 m, if the shear stress in the key is not to exceed 100 N/mm². AB 12mm 100mm
4. A steel rod of length L and uniform cross sectional area A is secured between two walls, as shown. Use L=1.7 m, E = 200 GPa, a = 11.9 × 10-6 /°C and AT = 70 °C. Calculate the stress for a temperature increase of AT for: a) The walls are fixed. b) The walls move apart a distance 0.4 mm. (20 pts)
Q2. Show that = Cr2(a - 0 + sin 0 cos 0 – tan a cos? 0) is a permissible Airy function for the tapered cantilever of uniform thickness, shown in Figure 2, and derive expressions for the corresponding stresses or, 0g and tre. Also, find the %3D value of the radial stress at 0-0° when a=30°. w/ unit length Figure 2
answer as soon as soon as possible
Calculate the diameter of a pressure vessel of thickness 0.04 m and the inside pressure is 20 mpa. Assume the permissible stress of the vessel is 100 mpa.
The state of stress at a point in a structural member is given by = 0x = Ax² + By², ay = Cy² + Dz², oz Ez² + Fx² Txy = Gy + Hz, Txz = Iz + Jx, Tyz = Kx + Ly where A, B,..., L are constants. Find expressions of the body forces to ensure the equi- librium. Units of the stresses are MPa.
QI/ for the vessel pressure shown in fig find longitudinal and hoop tensile stress in the wall knowing that internal pressure is 2.5 MPa and thickness of the wall Smm R-1m L-2m
Fig. (6)
Handwritten solution
The force applied at the handle of the rigid lever causes lever to rotate 0.04 radians clockwise about the pin connection at B. if each cable is made of steel (E=200Gpa) and has a cross-sectional area of 3x10^-3m^2. Calculate a) The average normal stress in each cable? b) the force applied at E? The horizontal distance between points D and E is 200mm