Struct PyMaterial 

pub struct PyMaterial {
    pub name: String,
    pub class: MaterialClass,
    pub young_modulus: f64,
    pub poisson_ratio: f64,
    pub density: f64,
    pub yield_stress: Option<f64>,
    pub hardening_modulus: Option<f64>,
    pub viscosity: Option<f64>,
}

A material definition holding both elastic and optional plastic properties.

Fields

name: String

Human-readable name.

class: MaterialClass

Classification.

young_modulus: f64

Young’s modulus (Pa).

poisson_ratio: f64

Poisson’s ratio (dimensionless, -1 < ν < 0.5).

density: f64

Mass density (kg/m^3).

yield_stress: Option<f64>

Yield stress for plastic materials (Pa); ignored for elastic.

hardening_modulus: Option<f64>

Isotropic hardening modulus (Pa); used after yield.

viscosity: Option<f64>

Dynamic viscosity (Pa·s) for viscous fluids.

Implementations

impl PyMaterial

pub fn elastic(name: &str, young: f64, poisson: f64, density: f64) -> Self

Create a generic elastic material.

pub fn plastic( name: &str, young: f64, poisson: f64, density: f64, yield_stress: f64, hardening: f64, ) -> Self

Create an elasto-plastic material.

pub fn viscous_fluid(name: &str, density: f64, viscosity: f64) -> Self

Create a viscous fluid material.

pub fn steel() -> Self

Return steel (structural carbon steel, approximate).

pub fn aluminium() -> Self

Return aluminium alloy 6061.

pub fn rubber() -> Self

Return natural rubber (vulcanised, approximate).

Very low Young’s modulus (~0.05 GPa) and near-incompressible (ν≈0.49).

pub fn concrete() -> Self

Return concrete (normal-weight, approximate).

pub fn titanium() -> Self

Return titanium alloy Ti-6Al-4V.

pub fn water() -> Self

Return water at 20 °C.

pub fn air() -> Self

Return air at standard conditions.

pub fn shear_modulus(&self) -> f64

Shear modulus G = E / (2(1 + ν)).

pub fn bulk_modulus(&self) -> f64

Bulk modulus K = E / (3(1 - 2ν)).

pub fn lame_lambda(&self) -> f64

Lamé’s first parameter λ.

pub fn p_wave_speed(&self) -> f64

Speed of sound (longitudinal, P-wave) in the material.

Trait Implementations

impl Clone for PyMaterial

fn clone(&self) -> PyMaterial

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PyMaterial

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

Formats the value using the given formatter.