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CIV2206 - Structural mechanics - S1 2026
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A 60° strain rosette is mounted on a steel shaft. The following readings are obtained from each gauge:
εa = 0.000244, εb = 9.9E-5, εc = -0.0002
Determine the corresponding normal and shear strains, and draw the strain block.
Assuming plane stress conditions, use the constitutive equations to find the corresponding stresses.
Assume E = 200,000 MPa and ν = 0.3.
Note: Do NOT round off any values until the final answer.
What is the value of strain in the x direction?
Present your answer using exponential format/scientific notation with 4 significant figures.
e.g. 222.0E4 or 2.220E6
What is the value of shear strain?
Present your answer using exponential format/scientific notation with 4 significant figures.
e.g. 222.0E4 or 2.220E6
What is the value of strain in the y direction?
Present your answer using exponential format/scientific notation with 4 significant figures.
e.g. 222.0E4 or 2.220E6
What is the value of corresponding shear stress in MPa?
Do NOT include any units.
Give the answer to 2 decimal place.
What is the value of corresponding normal stress in y direction in MPa?
Do NOT include any units.
Give the answer to 2 decimal place.
What is the value of corresponding normal stress in x direction in MPa?
Do NOT include any units.
Give the answer to 2 decimal place.
What is the absolute value of maximum in-plane shear stress in MPa?
Do NOT include any units.
Give the answer to 2 decimal place.
For the maximum in-plane shear stress condition.
What is the corresponding normal stress in the y' direction in MPa?
Do NOT include any units.
Give the answer to 2 decimal place.
What is the orientation of the maximum shear stress plane, measured from the horizontal axis in degrees?
Ensure you include the correct sign of the angle. Do NOT include any units.
Give the answer to 2 decimal place.
For the maximum in-plane shear stress condition.
What is the corresponding normal stress in the x' direction in MPa?
Do NOT include any units.
Give the answer to 2 decimal place.