Q-2      The rotating shaft running at n = 900 rpm, shown in the figure below, is machined from AISI 1045 CD steel. It is subjected to a force of F = 10.1 kN. The shaft is experiencing an operating temperature of 35 oC. With the specified loading and for a reliability of 99.9 %, a) Determine the minimum factor of safety for fatigue based on infinite life*.         b)  Determine the maximum safe load (Fmax) that can be applied for a factor of safety of 1.5 and a design life of 5x105 cycles, all other input values remaining the same.  c)  Determine factor of safety against yielding.     *Free-body, shear-force and bending moment diagrams are required.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Q-2      The rotating shaft running at n = 900 rpm, shown in the figure below, is machined from AISI 1045 CD steel. It is subjected to a force of F = 10.1 kN. The shaft is experiencing an operating temperature of 35 oC. With the specified loading and for a reliability of 99.9 %,

a) Determine the minimum factor of safety for fatigue based on infinite life*.        

b)  Determine the maximum safe load (Fmax) that can be applied for a factor of safety of 1.5 and a design life of 5x105 cycles, all other input values remaining the same. 

c)  Determine factor of safety against yielding.  

 

*Free-body, shear-force and bending moment diagrams are required.

500
-175-
25 D.
A
– 35 D.
3 R.
50 D.
-25 D.
В
- 20
- 20
20
-180
-280
20
(Dimensions in mm.)
Transcribed Image Text:500 -175- 25 D. A – 35 D. 3 R. 50 D. -25 D. В - 20 - 20 20 -180 -280 20 (Dimensions in mm.)
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