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Questions and Answers
What is the proportionality coefficient between compressive stress and axial strain?
What is the proportionality coefficient between compressive stress and axial strain?
- Stress-strain curve
- Young's modulus (correct)
- Poisson's ratio
- Anisotropic property
What is the range of Poisson's ratio for different rocks?
What is the range of Poisson's ratio for different rocks?
- 1.00 to 1.50
- 0.10 to 0.50 (correct)
- 0.01 to 0.10
- 0.50 to 1.00
What does the slope of the stress-strain curve represent?
What does the slope of the stress-strain curve represent?
- Poisson's ratio
- Axial strain
- Young's modulus (correct)
- Compressive stress
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Study Notes
- Elastic properties indicate deformational behavior of rocks.
- Deformation is expressed as percent strain.
- Young's modulus and Poisson's ratio are used to evaluate deformational behavior of rocks.
- Young's modulus is the proportionality coefficient between compressive stress and axial strain.
- The slope of the stress-strain curve is the Young's modulus.
- Rock is anisotropic, not isotropic.
- The elastic properties of rock are not the same in all directions.
- Poisson's ratio is the extension that occurs perpendicular to the direction of loading.
- Poisson's ratio ranges from 0.10 to 0.50 for different rocks.
- Poisson's ratio varies depending on the direction of loading.
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