Question

The number of independent elastic constant for a linear elastic isotropic and homogeneous material is

• A. $4$
• B. $3$
• C. $2$
• D. $1$

Answer 1

The correct option is C $2$

$\begin{array}{cc}\text{Material}& \text{No.of independent}\\ & \text{elastic constants}\\ \text{Isotropic}& 2\\ \text{Orthotropic(wood)}& 9\\ \text{Anisotropic}& 21\end{array}$