Question

For a continuous and oriented fiber-reinforced composite, the moduli of elasticity in the longitudinal and transverse directions are 19.7 and 3.66 GPa respectively. What is the modulus of elasticity in the longitudinal direction?

1) 19.7 GPa
2) 3.66 GPa
3) Cannot be determined
4) Not enough information provided

Answer 1

The modulus of elasticity in the longitudinal direction for the given fiber-reinforced composite is 19.7 GPa.

Step-by-step explanation:

The modulus of elasticity in the longitudinal direction for a continuous and oriented fiber-reinforced composite, as mentioned, is 19.7 GPa. This value is specifically given in the question, so the modulus of elasticity in the longitudinal direction can be confidently stated as 19.7 GPa.

The modulus of elasticity, also known as Youg's modulus, is a measure of the stiffness of a material and defines how much it will deform under a certain load. A higher modulus indicates a stiffer material. The question also mentions a different modulus in the transverse direction (3.66 GPa), which is typically lower in fiber-reinforced composites due to the alignment of the fibers along the longitudinal direction, where the material is stiffer.