Struct LinearElastic 

pub struct LinearElastic {
    pub young_modulus: f64,
    pub poisson_ratio: f64,
}

Linear elastic (isotropic) material defined by Young’s modulus and Poisson’s ratio.

Fields

young_modulus: f64

Young’s modulus (Pa)

poisson_ratio: f64

Poisson’s ratio (dimensionless, typically 0..0.5)

Implementations

impl LinearElastic

pub fn new(young_modulus: f64, poisson_ratio: f64) -> Self

Create a new linear elastic material.

pub fn bulk_modulus(&self) -> f64

Bulk modulus K = E / (3 * (1 - 2*nu)).

pub fn shear_modulus(&self) -> f64

Shear modulus G = E / (2 * (1 + nu)).

pub fn p_wave_modulus(&self) -> f64

P-wave (constrained) modulus M = E*(1-nu) / ((1+nu)(1-2nu)).

pub fn lame_lambda(&self) -> f64

First Lame parameter lambda = E * nu / ((1 + nu) * (1 - 2*nu)).

pub fn lame_mu(&self) -> f64

Second Lame parameter mu (same as shear modulus).

pub fn stress_strain_matrix_3d(&self) -> [[f64; 6]; 6]

6x6 stress-strain (stiffness) matrix in Voigt notation for 3-D isotropic elasticity.

Order: [sigma_xx, sigma_yy, sigma_zz, sigma_yz, sigma_xz, sigma_xy].

pub fn compliance_matrix_voigt(&self) -> [f64; 36]

6x6 compliance matrix S = C⁻¹ in Voigt notation.

Voigt order: [eps_xx, eps_yy, eps_zz, eps_yz, eps_xz, eps_xy].

pub fn engineering_strains(&self, stress_voigt: [f64; 6]) -> [f64; 6]

Compute engineering strains from a Voigt stress vector using the compliance matrix.

stress_voigt order: [sigma_xx, sigma_yy, sigma_zz, sigma_yz, sigma_xz, sigma_xy].

Trait Implementations

impl Clone for LinearElastic

fn clone(&self) -> LinearElastic

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LinearElastic

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for LinearElastic