A one mm diameter steel wire is wounded around a copper tube with external and internal diameters of 140 mm and 120 mm respectively, to increase the strength of tube against internal pressure, find what initial tension must be given to wire, so that maximum allowable stresses for the tube and wire materials 90 and 200 N/mm? respectively are reached simultaneously. Assume poisson coefficient for wire and tube material as 0.3. Modulus of elasticity for copper and steel wire 1000 N/mm' and 2000 N/mm' respectively. The tube is open at ends.

A one mm diameter steel wire is wounded around a copper tube with external and internal diameters of 140 mm and 120 mm respectively, to increase the strength of tube against internal pressure, find what initial tension must be given to wire, so that maximum allowable stresses for the tube and wire materials 90 and 200 N/mm? respectively are reached simultaneously. Assume poisson coefficient for wire and tube material as 0.3. Modulus of elasticity for copper and steel wire 1000 N/mm' and 2000 N/mm' respectively. The tube is open at ends.

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

A prismatic bar held between the two supports is heated above ambient by 30°C. Elastic Modulus ofthe material is 150 GPa and coefficient of linear expansionis 15x106. Find the final stress in the bar if there exists 10MPA of compressive stresses due to manufacturing defects at the ambient temperature.
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)
(5) A gas engine valve spring is loaded to 35kgf when the valve is closed & 52kgf hen the valve is open. The valve lift is 8mm. The outside diameter is to be from 38mm~45mm, & the permissible stress is 413N/mm2 . Determine: (a) the wire & outside diameter; (b) the number of effective coils; (c) the free length when it is squared & ground.
The true option
6.13 A brass rod is a firm fit inside a steel tube 2 cm inside diameter and 4 cm outside diameter when the materials are at 15°C. If the rod and tube are now heated to a temperature of 150° C, calculate the maximum stresses in the brass and steel. Take the coeffi- cient of expansion for steel and brass as 10.8 × 10-6 and 18 x 10-6 per °C respectively. For steel E = 200 GPa and for brass E = 85 GPa. Poisson's ratio for both = 1/3. Neglect longitudinal frictional forces between the rod and the tube. %3D eleo
materials resistance
I need answer within 20 minutes please please with my best wishes
A 3-in. by 6-in. steel (E-29,000 ksi) bar (4-foot long) is subjected to the loads shown. Calculate the combined stresses at points A and B (be sure to indicate either tension or compression). Remember, the bar is bending in the strong direction so calculate your I accordingly. 1(1/12) (B)"(H) S=l/c A B. 6" 10,000 lbs 45,000 Ibs
i need the answer quickly