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Questions and Answers
Which test measures the behavior of materials subjected to simple beam loading?
Which test measures the behavior of materials subjected to simple beam loading?
- Shear test
- Engineering strain
- Flexural bending test (correct)
- Torsion test
Which behavior often shows a linear relation between stress and strain?
Which behavior often shows a linear relation between stress and strain?
- Elastic behavior (correct)
- Plastic behavior
- Shear test
- Torsion test
What is the definition of engineering strain (ϵ)?
What is the definition of engineering strain (ϵ)?
- Ratio of the lateral and axial strains
- Permanent deformation behavior
- Change in length divided by the original length (correct)
- Degree to which a structure deforms or strains
What is the ratio of the lateral and axial strains called?
What is the ratio of the lateral and axial strains called?
When does plastic behavior occur?
When does plastic behavior occur?
Which test measures the behavior of materials subjected to pure shear force?
Which test measures the behavior of materials subjected to pure shear force?
Which deformation behavior is nonpermanent and the piece returns to its original shape when the applied load is released?
Which deformation behavior is nonpermanent and the piece returns to its original shape when the applied load is released?
What is the variation of pure shear in which a structural member is twisted called?
What is the variation of pure shear in which a structural member is twisted called?
What is the ratio of the lateral and axial strains called?
What is the ratio of the lateral and axial strains called?
What is the degree to which a structure deforms or strains depending on the magnitude of an imposed stress called?
What is the degree to which a structure deforms or strains depending on the magnitude of an imposed stress called?
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Study Notes
Material Behavior Tests
- The three-point bending test measures the behavior of materials subjected to simple beam loading.
- The elastic behavior of materials often shows a linear relation between stress and strain.
Engineering Strain
- The definition of engineering strain (ϵ) is the ratio of change in length to the original length of the material.
Strain Ratios
- The ratio of the lateral and axial strains is called Poisson's ratio.
Material Deformation
- Plastic behavior occurs when the material undergoes permanent deformation without breaking.
- Elastic deformation is nonpermanent and the piece returns to its original shape when the applied load is released.
Pure Shear Tests
- The torsion test measures the behavior of materials subjected to pure shear force.
- The variation of pure shear in which a structural member is twisted is called torsion.
Stress and Strain
- The degree to which a structure deforms or strains depends on the magnitude of an imposed stress, which is known as stress-strain behavior.
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