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What force is required to punch a 20-mm diameter hole through a 10-mm thick plate? The ultimate strength of the plate material is 450 MPa. (A) 386 KN B 241 KN 283 kN 252 kN D

What force is required to punch a 20-mm diameter hole through a 10-mm thick plate? The ultimate strength of the plate material is 450 MPa. (A) 386 KN B 241 KN 283 kN 252 kN D

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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What force is required to punch a 20-mm diameter hole through a 10-mm thick plate? The ultimate strength of the plate material is 450 MPa. (A) 386 KN B 241 KN 283 kN 252 kN D
Transcribed Image Text:What force is required to punch a 20-mm diameter hole through a 10-mm thick plate? The ultimate strength of the plate material is 450 MPa. (A) 386 KN B 241 KN 283 kN 252 kN D
A steel wire 30 ft long, hanging vertically, supports a load of 500 lb. Neglecting the weight of the wire, determine the required diameter if the stress is not to exceed 20.0 ksi and the total elongation is not to exceed 0.20 in. Assume E = 29 x 106 psi. A)) 1.38 inch )1.98 inch C) 1.23 inch D) ) 2.13 inch
Transcribed Image Text:A steel wire 30 ft long, hanging vertically, supports a load of 500 lb. Neglecting the weight of the wire, determine the required diameter if the stress is not to exceed 20.0 ksi and the total elongation is not to exceed 0.20 in. Assume E = 29 x 106 psi. A)) 1.38 inch )1.98 inch C) 1.23 inch D) ) 2.13 inch
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