Struct Material 

pub struct Material {
    pub name: Cow<'static, str>,
    pub youngs_modulus: f64,
    pub poisson_ratio: f64,
    pub yield_strength: f64,
    pub ultimate_tensile_strength: f64,
    pub density: f64,
    pub thermal_expansion: f64,
}

Engineering material with mechanical properties.

Fields

name: Cow<'static, str>

Material name / identifier.

youngs_modulus: f64

Young’s modulus (Pa).

poisson_ratio: f64

Poisson’s ratio (dimensionless, typically 0.2-0.5).

yield_strength: f64

Yield strength (Pa).

ultimate_tensile_strength: f64

Ultimate tensile strength (Pa).

density: f64

Density (kg/m^3).

thermal_expansion: f64

Coefficient of thermal expansion (1/K).

Implementations

impl Material

pub fn new( name: impl Into<Cow<'static, str>>, youngs_modulus: f64, poisson_ratio: f64, yield_strength: f64, ultimate_tensile_strength: f64, density: f64, thermal_expansion: f64, ) -> Result<Self>

Create a validated material.

Checks: E > 0, -1 < v < 0.5, sigma_y >= 0, UTS >= sigma_y, rho > 0.

pub fn shear_modulus(&self) -> f64

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

pub fn bulk_modulus(&self) -> f64

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

pub fn lame_lambda(&self) -> f64

First Lame parameter.

pub fn thermal_strain(&self, delta_t: f64) -> f64

Thermal strain for a given temperature change: e_th = alpha * dT.

pub fn thermal_stress(&self, delta_t: f64) -> f64

Thermal stress under full constraint: sigma = E * alpha * dT.

pub fn steel() -> Self

Structural steel (ASTM A36 / S275).

pub fn aluminum() -> Self

Aluminum 6061-T6.

pub fn copper() -> Self

Copper (annealed, C11000).

pub fn titanium() -> Self

Titanium Ti-6Al-4V (annealed).

pub fn glass() -> Self

Soda-lime glass.

Note: glass is brittle — yield_strength represents tensile fracture strength, not a ductile yield point.

pub fn rubber() -> Self

Natural rubber (vulcanized).

Note: rubber properties are highly compound-dependent. yield_strength represents approximate tensile strength.

pub fn concrete() -> Self

Normal-strength concrete (C30).

Note: yield_strength is the compressive strength. Concrete has negligible tensile strength (~3 MPa) and is primarily a compressive material.

pub fn wood_oak() -> Self

Oak wood (along grain).

Note: wood is anisotropic — all values are longitudinal (along grain). Cross-grain properties differ significantly.

pub fn carbon_fiber() -> Self

Carbon fiber composite (unidirectional, ~60% Vf, intermediate modulus).

Note: values are longitudinal. Transverse properties are much lower. yield_strength represents ultimate tensile strength (composites are brittle — no ductile yield).

pub fn stainless_steel_304() -> Self

Stainless steel 304 (austenitic).

pub fn cast_iron() -> Self

Gray cast iron (ASTM Class 40).

Note: cast iron is brittle in tension. yield_strength is the 0.2% proof stress; tensile fracture occurs at ~293 MPa with minimal plastic deformation.

pub fn brass() -> Self

Brass (C36000, free-cutting).

pub fn hdpe() -> Self

High-density polyethylene (HDPE).

Trait Implementations

impl Clone for Material

fn clone(&self) -> Material

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Material

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

Formats the value using the given formatter.

impl Default for Material

fn default() -> Self

Defaults to structural steel.

impl<'de> Deserialize<'de> for Material

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Material

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

Formats the value using the given formatter.

impl PartialEq for Material

fn eq(&self, other: &Material) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Material

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Material