Q5: A steel cantilever shaft. The fillet is 6 mm, Sut= 560 MPa and Sy= 420 MPa. Assume the shaft surface is cold-rolled, operating temperature is 550c, reliability is 50%. Calculate the design safety factor Nfusing Good-Man theory of failure. R6 400N $25 600N 500N 250N 200mm For the stepped rod shown which is acted upon by both a fluctuating axial force (F1) of between - 900 N and 3,600 N and a constant axial force (F2) of 2,250 N, determine (a) The factor-of-safety (Nf) using the Goodman theory. The stepped rod is made of high-strength steel, ground to the dimensions shown. The stepped rod operates at room temperature. Known that the ultimate stress 735 MPa, yield stress 500 MPa and k=1.15. d = 0.48 cm d = 0.32 cm F, F2

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Q5: A steel cantilever shaft.The fillet is 6 mm,
Sut= 560 MPa and Sy= 420 MPa. Assume the
shaft surface is cold-rolled, operating temperature
is 550c, reliability is 50%. Calculate the design
safety factor Nfusing Good-Man theory of failure.
R6
400N
|$25
600N
500N
250N
200mm
For the stepped rod shown which is acted upon by
both a fluctuating axial force (F1) of between -
900 N and 3,600 N and a constant axial force (F2)
of 2,250 N, determine (a) The factor-of-safety
(Nf) using the Goodman theory. The stepped rod
is made of high-strength steel, ground to the
dimensions
shown.
The
stepped rod operates at room temperature. Known
that the ultimate stress 735 MPa, yield stress 500
MPa and k=1.15.
d = 0.48 cm
d = 0.32 cm
F,
F2
Transcribed Image Text:Q5: A steel cantilever shaft.The fillet is 6 mm, Sut= 560 MPa and Sy= 420 MPa. Assume the shaft surface is cold-rolled, operating temperature is 550c, reliability is 50%. Calculate the design safety factor Nfusing Good-Man theory of failure. R6 400N |$25 600N 500N 250N 200mm For the stepped rod shown which is acted upon by both a fluctuating axial force (F1) of between - 900 N and 3,600 N and a constant axial force (F2) of 2,250 N, determine (a) The factor-of-safety (Nf) using the Goodman theory. The stepped rod is made of high-strength steel, ground to the dimensions shown. The stepped rod operates at room temperature. Known that the ultimate stress 735 MPa, yield stress 500 MPa and k=1.15. d = 0.48 cm d = 0.32 cm F, F2
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