For each of the questions below, choose the correct answer.

Name

Email

1) Ductile material can undergo large elastic but small plastic deformation.

True

False

2) Poisson’s ratio value is between half and one.

True

False

3) Material volume does not change during deformation.

True

False

4) A tough material has a large ultimate stress but small area under the stress-strain curve.

True

False

5) The stress-strain equations are independent of the orientation of the coordinate system in isotropic materials

True

False

6) The material constants are functions of coordinates in non-homogenous materials.

True

False

7) The most general anisotropic material needs 36 independent constants to relate the six independent stress components to the six independent and strain at a point.

True

False

8) There are three independent material constant relating stresses and strains in isotropic material

True

False

9) The Generalized Hooke’s law is valid for any orthogonal coordinate system for isotropic material.

True

False

10) The Generalized Hooke’s law is valid for non-homogenous, isotropic material.

True

False

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