Problem 1: During its operation, the drill shown below is jammed in the wall subjecting it to 20 N.m torque and 150 N force. The cross section of the jammed drill bit (screw), at section a-a can also been seen below. The screw (bit) is 5mm in radius and it is made from high speed steel with a yield strength of 1000 MPa. A. Determine the state of stress at point A of the cross section and represent it on a differential element B. Determine the principal stresses C. Calculate the factor of safety using the maximum shear stress (MSS) theory and the von Mises distortion energy theory (DE)

Problem 1: During its operation, the drill shown below is jammed in the wall subjecting it to 20 N.m torque and 150 N force. The cross section of the jammed drill bit (screw), at section a-a can also been seen below. The screw (bit) is 5mm in radius and it is made from high speed steel with a yield strength of 1000 MPa. A. Determine the state of stress at point A of the cross section and represent it on a differential element B. Determine the principal stresses C. Calculate the factor of safety using the maximum shear stress (MSS) theory and the von Mises distortion energy theory (DE)

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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