What is the factor of safety for a beam that has a maximum bending stress of 30

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Question: What is the factor of safety for a beam that has a maximum bending stress of 30 MPa and a yield strength of 150 MPa?

Options:

Correct Answer: 3

Solution:

The factor of safety (FoS) is calculated as FoS = Yield Strength / Maximum Stress = 150 MPa / 30 MPa = 5.

What is the factor of safety for a beam that has a maximum bending stress of 30 MPa and a yield strength of 150 MPa?

What is the factor of safety for a beam that has a maximum bending stress of 30 MPa and a yield strength of 150 MPa?

Step 1: Identify the maximum bending stress of the beam, which is given as 30 MPa.
Step 2: Identify the yield strength of the material, which is given as 150 MPa.
Step 3: Use the formula for factor of safety (FoS), which is FoS = Yield Strength / Maximum Stress.
Step 4: Substitute the values into the formula: FoS = 150 MPa / 30 MPa.
Step 5: Perform the division: 150 divided by 30 equals 5.
Step 6: Conclude that the factor of safety for the beam is 5.

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