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.
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.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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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.
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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