The connecting rod number 2 shown in the figure is made of low carbon steel with yield strength Sy = 100 MPa, and its modulus of elasticity is E=200 GPa. The tensile strength of the material is Sut=160 MPa. A general variable load F between 6 and 10 kN acts on the system from point C as shown in the figure. a) Draw the necessary free body diagram to find the force on the tie rod. Find the mean and amplitude stresses on the connecting rod depending on the diameter d of the rod. b) The drawbar is forged and 99% reliability is required. Find the finite life strength (Sf) since a lifetime of 100,000 cycles is required in the design. c) If the design safety factor Nf=2 is desired, what should the diameter d of the connecting rod be? Calculate. Note: For finite life calculations, take f as 1
The connecting rod number 2 shown in the figure is made of low carbon steel with yield strength Sy = 100 MPa, and its modulus of elasticity is E=200 GPa. The tensile strength of the material is Sut=160 MPa. A general variable load F between 6 and 10 kN acts on the system from point C as shown in the figure. a) Draw the necessary free body diagram to find the force on the tie rod. Find the mean and amplitude stresses on the connecting rod depending on the diameter d of the rod. b) The drawbar is forged and 99% reliability is required. Find the finite life strength (Sf) since a lifetime of 100,000 cycles is required in the design. c) If the design safety factor Nf=2 is desired, what should the diameter d of the connecting rod be? Calculate. Note: For finite life calculations, take f as 1
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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The connecting rod number 2 shown in the figure is made of low carbon steel with yield strength Sy = 100 MPa, and its modulus of elasticity is E=200 GPa. The tensile strength of the material is Sut=160 MPa. A general variable load F between 6 and 10 kN acts on the system from point C as shown in the figure.
a) Draw the necessary free body diagram to find the force on the tie rod. Find the mean and amplitude stresses on the connecting rod depending on the diameter d of the rod.
b) The drawbar is forged and 99% reliability is required. Find the finite life strength (Sf) since a lifetime of 100,000 cycles is required in the design.
c) If the design safety factor Nf=2 is desired, what should the diameter d of the connecting rod be? Calculate.
Note: For finite life calculations, take f as 1
Transcribed Image Text:1m
-1.25 m-
0.6 m
d
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