A strain gage rosette is placed on the most critical point on the surface of a part. The part is made of a ductile steel for which the Young's modulus is 30000 ksi, the Poisson's ratio is 0.3, and the yield strength is 80 ksi. The strains measured are 600μ in strain gage 1, -400µ in strain gage 2, and 500μ in strain gage 3. What is the factor of safety against failure according to the Von Mises failure criterion?

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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No need to where where the strain is located, it is my understanding that if just doing Mohrs circle and plotting Von misses right, I just wanted to check my work to make sure.

Problem 21.2
A strain gage rosette is placed on the most critical point on the surface of a part. The part is made of a
ductile steel for which the Young's modulus is 30000 ksi, the Poisson's ratio is 0.3, and the yield strength is
80 ksi.
The strains measured are 600µ in strain gage 1, -400µ in strain gage 2, and 500µ in strain gage 3.
What is the factor of safety against failure according to the Von Mises failure criterion?
y.
ka
3
45°
X
Transcribed Image Text:Problem 21.2 A strain gage rosette is placed on the most critical point on the surface of a part. The part is made of a ductile steel for which the Young's modulus is 30000 ksi, the Poisson's ratio is 0.3, and the yield strength is 80 ksi. The strains measured are 600µ in strain gage 1, -400µ in strain gage 2, and 500µ in strain gage 3. What is the factor of safety against failure according to the Von Mises failure criterion? y. ka 3 45° X
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