2. An AISI 4142 steel Q&T at 800°F exhibits Syt = 235 kpsi, Syc = 285 kpsi, and &f= 0.07. For the given state of plane stress, (a) determine the factor of safety, (b) plot the failure locus and the load line and estimate the factor of safety by graphical measurement. (x (kpsi) 150 -1.50 125 -80 125 Ty (kpsi) -50 50 0 -125 80 Txy (kpsi) 0 0 -75 50 -75
2. An AISI 4142 steel Q&T at 800°F exhibits Syt = 235 kpsi, Syc = 285 kpsi, and &f= 0.07. For the given state of plane stress, (a) determine the factor of safety, (b) plot the failure locus and the load line and estimate the factor of safety by graphical measurement. (x (kpsi) 150 -1.50 125 -80 125 Ty (kpsi) -50 50 0 -125 80 Txy (kpsi) 0 0 -75 50 -75
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:2. An AISI 4142 steel Q&T at 800°F exhibits Syt = 235 kpsi, Syc = 285 kpsi, and Ef = 0.07. For the
given state of plane stress, (a) determine the factor of safety, (b) plot the failure locus and the load line and
estimate the factor of safety by graphical measurement.
0x (kpsi)
150
-150
125
-80
125
"Ty (kpsi)
-50
50
0
- 125
80
Txy (kpsi)
0
0
-75
50
-75
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Step 1: finding factor of safety for 1st and 2nd stress variation and ploting the diagram.
VIEWStep 2: finding factor of safety for 3rd stress variation and ploting the diagram.
VIEWStep 3: finding factor of safety for 4th stress variation and ploting the diagram,and 5th calculation
VIEWStep 4: finding factor of safety for 5th stress variation and ploting the diagram.
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