Struct Magnetostrictive 

pub struct Magnetostrictive {
    pub lambda_s: f64,
    pub m_saturation: f64,
    pub youngs_modulus: f64,
    pub d_coeff: f64,
    pub coercive_field: f64,
}

Magnetostrictive material model (Joule and Villari effects).

Models Terfenol-D-like materials with magnetization curve and Preisach hysteresis.

Fields

lambda_s: f64

Saturation magnetostriction λ_s (dimensionless, e.g. 1750e-6 for Terfenol-D).

m_saturation: f64

Saturation magnetization M_s (A/m).

youngs_modulus: f64

Young’s modulus at H=0 (Pa).

d_coeff: f64

Magnetomechanical coupling coefficient d (m/A).

coercive_field: f64

Coercive field Hc (A/m) for hysteresis.

Implementations

impl Magnetostrictive

pub fn terfenol_d() -> Self

Creates a Terfenol-D model.

pub fn magnetostriction(&self, magnetization: f64) -> f64

Joule magnetostriction: ε = (3/2) * λ_s * (M/M_s)^2.

pub fn villari_effect(&self, stress: f64, h_field: f64) -> f64

Villari effect: change in magnetization due to stress.

dM/dσ ≈ d * H_applied at constant field.

pub fn preisach_hysteron( &self, h: f64, alpha: f64, beta: f64, state: bool, ) -> bool

Preisach-like hysteresis: simple scalar Preisach model.

Returns the magnetization for a triangular hysteron with thresholds (α, β).

pub fn magnetization_curve(&self, h_field: f64) -> f64

Magnetization curve (Langevin function approximation).

Trait Implementations

impl Clone for Magnetostrictive

fn clone(&self) -> Magnetostrictive

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Magnetostrictive

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

Formats the value using the given formatter.