Function thermal_expansion_kernel 

pub fn thermal_expansion_kernel(
    coeff: f64,
    delta_temp: Temperature,
) -> Result<CausalTensor<f64>, PhysicsError>

Calculates thermal expansion strain: $\epsilon = \alpha \Delta T$.

Arguments

• coeff - Thermal expansion coefficient $\alpha$.
• delta_temp - Change in temperature $\Delta T$.

Returns

• Ok(CausalTensor<f64>) - Isotropic strain tensor (3x3).