Function shear_modulus_from_youngs_and_poisson 

pub fn shear_modulus_from_youngs_and_poisson(
    youngs_modulus: f64,
    poisson_ratio: f64,
) -> Option<f64>

Computes shear modulus from Young’s modulus and Poisson’s ratio.

Formula: G = E / (2 * (1 + ν)).

Returns None when youngs_modulus is negative, when the denominator is zero, or when any input or result is not finite.

Examples

use use_elasticity::shear_modulus_from_youngs_and_poisson;

assert_eq!(shear_modulus_from_youngs_and_poisson(260.0, 0.3), Some(100.0));