Quiz: Section 2.3 Hooke’s Law for Different Types of Materials

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This is a quiz of section 2.3 Hooke’s Law for Different Types of Materials from the textbook Mechanics of Composite Materials by Autar Kaw.

1. To find the value of the major Poisson’s ratio, ν₁₂ of a unidirectional lamina, one would apply the following stress to the unidirectional lamina.

Normal stress perpendicular to the fiber direction

Normal stress parallel to the fiber direction

Shear stress to the lamina in the 1-2 plane

2. An assumption that must be made when using Hooke’s law for a two-dimensional unidirectional lamina in plane-stress is:

Only axial loads are applied

There are no out-of-plane loads.

Only shear loads are applied.

3. To find the value of the longitudinal modulus E₁ of a unidirectional lamina, one would apply the following stress to the lamina.

Normal stress perpendicular to the fibers

Normal stress parallel to the fibers

Shear stress to the lamina in the 1-2 plane

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