Engineering Board Exam Reviewer · Engineering Materials · medium

In a fiber composite, the strength and stiffness are greatest when loaded:

1. Perpendicular to the fibers
2. Parallel to the fibers (longitudinal direction)
3. At 45° to the fibers
4. Equally in all directions

Answer

B. Parallel to the fibers (longitudinal direction)

Solution

Unidirectional composites are highly anisotropic.

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