Struct PyFatigueMaterial 

pub struct PyFatigueMaterial {
    pub basquin_coefficient: f64,
    pub basquin_exponent: f64,
    pub endurance_limit: f64,
}

Fatigue material described by the Basquin (S–N) power law.

Fields

basquin_coefficient: f64

Basquin coefficient A (stress intercept at N = 1).

basquin_exponent: f64

Basquin exponent b (negative slope of the S–N curve).

endurance_limit: f64

Endurance limit σ_e (Pa). Below this stress fatigue life is infinite.

Implementations

impl PyFatigueMaterial

pub fn new( basquin_coefficient: f64, basquin_exponent: f64, endurance_limit: f64, ) -> Self

Create a new fatigue material.

pub fn cycles_to_failure(&self, stress_amplitude: f64) -> f64

Estimate cycles to failure N_f for a given stress amplitude σ_a (Pa).

Returns f64::INFINITY when σ_a ≤ endurance_limit. Uses the Basquin relation: N_f = (A / σ_a)^(1/b).

pub fn miner_damage(&self, n_cycles: f64, stress_amplitude: f64) -> f64

Miner’s rule damage increment for one block of n_cycles at stress_amplitude.

Trait Implementations

impl Clone for PyFatigueMaterial

fn clone(&self) -> PyFatigueMaterial

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PyFatigueMaterial

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

Formats the value using the given formatter.

impl Default for PyFatigueMaterial

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for PyFatigueMaterial

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for PyFatigueMaterial

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

where __S: Serializer,

Serialize this value into the given Serde serializer.