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A 40 mm diameter rod of a certain material is 1,2 m long and has a collar fitted to one end. The rod is held vertically and a weight of 20 kN is gradually lowered onto the collar, producing an extension of 0,253 mm. Calculate the height from which this load could be dropped onto the collar if the maximum stress in the bar is to be 100 MPa.

A 40 mm diameter rod of a certain material is 1,2 m long and has a collar fitted to one end. The rod is held vertically and a weight of 20 kN is gradually lowered onto the collar, producing an extension of 0,253 mm. Calculate the height from which this load could be dropped onto the collar if the maximum stress in the bar is to be 100 MPa.

Elements Of Electromagnetics
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
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Use the principle of Strain energy due to direct stresses strength of materials 2
A 40 mm diameter rod of a certain material is 1,2 m long and has a collar fitted to one end. The rod is held vertically and a weight of 20 kN is gradually lowered onto the collar, producing an extension of 0,253 mm. Calculate the height from which this load could be dropped onto the collar if the maximum stress in the bar is to be 100 MPa.
Transcribed Image Text:A 40 mm diameter rod of a certain material is 1,2 m long and has a collar fitted to one end. The rod is held vertically and a weight of 20 kN is gradually lowered onto the collar, producing an extension of 0,253 mm. Calculate the height from which this load could be dropped onto the collar if the maximum stress in the bar is to be 100 MPa.
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