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A plate with a center hole is subjected to both of axial force (F) and bending moment (M; acting about weak axis). Predict the fatigue failure with 50% reliability. The plate is machined from alloy steel (S.= 470 MPa and Sy= 350 MPa). M [Top View] M M (Side View] Where, w-35mm, d34mm, h=2mm. 1) Calculate fatigue strength (S,). and (b) 2) Calculate . and o. for two loading cases: (a) F=Fosin (ot-10) and M=0 F=Fosin (t+10) +k and M=Mo Note: F.=k = 2 kN and M.= 4 Nm 3) Determine if the bar is safe against fatigue failure and calculate safety factor for the cyclic loading cases; assume (a) obm = 0 MPa and O = 80 MPa and (b) oim = 85 MPa and o = 70 MPa regardless of the answers in question 2).

A plate with a center hole is subjected to both of axial force (F) and bending moment (M; acting about weak axis). Predict the fatigue failure with 50% reliability. The plate is machined from alloy steel (S.= 470 MPa and Sy= 350 MPa). M [Top View] M M (Side View] Where, w-35mm, d34mm, h=2mm. 1) Calculate fatigue strength (S,). and (b) 2) Calculate . and o. for two loading cases: (a) F=Fosin (ot-10) and M=0 F=Fosin (t+10) +k and M=Mo Note: F.=k = 2 kN and M.= 4 Nm 3) Determine if the bar is safe against fatigue failure and calculate safety factor for the cyclic loading cases; assume (a) obm = 0 MPa and O = 80 MPa and (b) oim = 85 MPa and o = 70 MPa regardless of the answers in question 2).

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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A plate with a center hole is subjected to both of axial force (F) and bending moment (M; acting about weak axis). Predict the fatigue failure with 50% reliability. The plate is machined from alloy steel (S.= 470 MPa and Sy= 350 MPa). M M [Top View] M M [Side View] Where, w=35mm, d=4mm, h=2mm. 1) Calculate fatigue strength (S,). 2) Calculate o. and o. for two loading cases: (a) F=Fosin (wt-10) and M=0 F=Fosin (t+10) +k and M=Mo and (b) Note: F.= k = 2 kN and M.= 4 Nm 3) Determine if the bar is safe against fatigue failure and calculate safety factor for the cyclic loading cases; assume (a) Obm = 0 MPa and O = 80 MPa and (b) oim = 85 MPa and OE = 70 MPa regardless of the answers in question 2).
Transcribed Image Text:A plate with a center hole is subjected to both of axial force (F) and bending moment (M; acting about weak axis). Predict the fatigue failure with 50% reliability. The plate is machined from alloy steel (S.= 470 MPa and Sy= 350 MPa). M M [Top View] M M [Side View] Where, w=35mm, d=4mm, h=2mm. 1) Calculate fatigue strength (S,). 2) Calculate o. and o. for two loading cases: (a) F=Fosin (wt-10) and M=0 F=Fosin (t+10) +k and M=Mo and (b) Note: F.= k = 2 kN and M.= 4 Nm 3) Determine if the bar is safe against fatigue failure and calculate safety factor for the cyclic loading cases; assume (a) Obm = 0 MPa and O = 80 MPa and (b) oim = 85 MPa and OE = 70 MPa regardless of the answers in question 2).
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