Question 4 (a) A 75 mm diameter solid circular shaft rotating at 800 rpm transmits 400 kW and, in addition, carries a tensile axial load force of 140 kN. The shaft material has a tensile yield strength of 110 MPa. Determine if the shaft will fail based on: (i) The maximum shear stress theory (ii) The maximum distortion energy theory (b) The state of stress at a critical point in a gray cast iron component is as follows: x = 0 Oy=-180 MPa Txy = 200 MPa Determine if failure will occur at the point according to: (i) the maximum normal stress theory, and (ii) Mohr's failure criterion. For the cast iron the ultimate tensile strength is 290 MPa and the ultimate compressive strength is 650 MPa.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
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Question 4
(a) A 75 mm diameter solid circular shaft rotating at 800 rpm transmits 400 kW and, in
addition, carries a tensile axial load force of 140 kN. The shaft material has a tensile yield
strength of 110 MPa. Determine if the shaft will fail based on:
(i) The maximum shear stress theory
(ii) The maximum distortion energy theory
(b) The state of stress at a critical point in a gray cast iron component is as follows:
x = 0
Oy=-180 MPa
Txy = 200 MPa
Determine if failure will occur at the point according to: (i) the maximum normal stress
theory, and (ii) Mohr's failure criterion.
For the cast iron the ultimate tensile strength is 290 MPa and the ultimate compressive
strength is 650 MPa.
Transcribed Image Text:Question 4 (a) A 75 mm diameter solid circular shaft rotating at 800 rpm transmits 400 kW and, in addition, carries a tensile axial load force of 140 kN. The shaft material has a tensile yield strength of 110 MPa. Determine if the shaft will fail based on: (i) The maximum shear stress theory (ii) The maximum distortion energy theory (b) The state of stress at a critical point in a gray cast iron component is as follows: x = 0 Oy=-180 MPa Txy = 200 MPa Determine if failure will occur at the point according to: (i) the maximum normal stress theory, and (ii) Mohr's failure criterion. For the cast iron the ultimate tensile strength is 290 MPa and the ultimate compressive strength is 650 MPa.
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