Engineering Board Exam Reviewer · Strength of Materials · medium
Poisson's ratio of a material is the ratio of:
- Axial strain to lateral strain
- Shear stress to shear strain
- Normal stress to normal strain
- Lateral strain to axial strain (in magnitude)
Answer
D. Lateral strain to axial strain (in magnitude)
Solution
Poisson's ratio = |lateral strain| / |axial strain|; for most engineering metals it lies between about 0.25 and 0.35.
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