Struct J2ReturnMapping 

pub struct J2ReturnMapping {
    pub shear_modulus: f64,
    pub bulk_modulus: f64,
    pub sigma_y0: f64,
    pub hardening_modulus: f64,
}

J2 (von Mises) return mapping algorithm with isotropic hardening.

Given a trial elastic stress, compute the corrected plastic stress via the radial return algorithm.

Fields

shear_modulus: f64

Shear modulus G (Pa).

bulk_modulus: f64

Bulk modulus K (Pa).

sigma_y0: f64

Initial yield stress (Pa).

hardening_modulus: f64

Isotropic hardening modulus H (Pa).

Implementations

impl J2ReturnMapping

pub fn new( shear_modulus: f64, bulk_modulus: f64, sigma_y0: f64, hardening_modulus: f64, ) -> Self

Create a J2 return mapping integrator.

pub fn from_young_poisson(E: f64, nu: f64, sigma_y0: f64, h: f64) -> Self

Create from Young’s modulus and Poisson’s ratio.

pub fn von_mises(stress: &[f64; 6]) -> f64

Von Mises stress (√(3 J₂)) from full Voigt stress [xx,yy,zz,xy,yz,xz].

pub fn return_map( &self, trial_stress: &[f64; 6], eps_p_bar: f64, ) -> ([f64; 6], [f64; 6], f64)

Radial return mapping.

Returns (updated_stress, delta_eps_p, delta_eps_p_equivalent).

pub fn consistent_tangent_uniaxial(&self) -> f64

Consistent tangent modulus (elastic-plastic, uniaxial).

C_ep = 2G * [1 - 3G*Δγ/q_trial - 3G/(3G+H)q_trial/(q_trial)] Simplified scalar: E_ep = EH/(E+H).

Trait Implementations

impl Clone for J2ReturnMapping

fn clone(&self) -> J2ReturnMapping

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for J2ReturnMapping

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

Formats the value using the given formatter.

impl Copy for J2ReturnMapping