The annealed low carbon steel behavior is approximated by o = 10000ɛ 0.25 MPa. Using the values given in Table Q3 below Evaluate: A) The yield strength after the bar is cold worked for 30%. B) If the same annealed low carbon steel bar is initially cold worked 15%, followed by additional cold work of 20%, determine the probable yield strength of the final bar. C) If the same annealed low carbon steel bar was cold worked for an unknown amount and then cold worked 20% more and found to have a yield strength of 7500 MPa. What was the unknown amount of cold work? D) Discuss the variation of yield stress in question a & b. E) Discuss the effect of mechanical working on variation of properties with respect to grain size. Also draw a clear graph of properties versus grain size for ductility and strength.

The annealed low carbon steel behavior is approximated by o = 10000ɛ 0.25 MPa. Using the values given in Table Q3 below Evaluate: A) The yield strength after the bar is cold worked for 30%. B) If the same annealed low carbon steel bar is initially cold worked 15%, followed by additional cold work of 20%, determine the probable yield strength of the final bar. C) If the same annealed low carbon steel bar was cold worked for an unknown amount and then cold worked 20% more and found to have a yield strength of 7500 MPa. What was the unknown amount of cold work? D) Discuss the variation of yield stress in question a & b. E) Discuss the effect of mechanical working on variation of properties with respect to grain size. Also draw a clear graph of properties versus grain size for ductility and strength.

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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