Struct ProgressiveFailureAnalysis 

pub struct ProgressiveFailureAnalysis {
    pub n_plies: usize,
    pub ply_damage: Vec<f64>,
    pub criteria: HashinFailureCriteria,
}

Progressive failure analysis (PFA) for a composite laminate.

Each ply is assigned a scalar damage variable d ∈ [0, 1]. When d = 1 for a ply, it is considered fully failed and its stiffness contribution is set to zero (ply-discount method).

Fields

n_plies: usize

Number of plies.

ply_damage: Vec<f64>

Damage state of each ply (0 = intact, 1 = failed).

criteria: HashinFailureCriteria

Hashin criteria for this laminate.

Implementations

impl ProgressiveFailureAnalysis

pub fn new( n_plies: usize, x_t: f64, x_c: f64, y_t: f64, y_c: f64, s12: f64, ) -> Self

Create a new PFA model with n_plies plies.

pub fn degrade_ply(&mut self, ply_idx: usize, d: f64)

Degrade ply i by setting damage to d (irreversible).

pub fn is_ply_failed(&self, ply_idx: usize) -> bool

Check if ply i is fully failed (d ≥ 1).

pub fn is_fully_failed(&self) -> bool

Check if the entire laminate has failed (all plies failed).

pub fn mean_damage(&self) -> f64

Mean damage across all plies.

pub fn apply_stress( &mut self, ply_idx: usize, sigma1: f64, sigma2: f64, tau12: f64, d_increment: f64, )

Apply ply-level stress state and update damage based on Hashin criteria.

pub fn laminate_stiffness_factor(&self) -> f64

Effective laminate stiffness factor (mean over surviving plies).

Trait Implementations

impl Clone for ProgressiveFailureAnalysis

fn clone(&self) -> ProgressiveFailureAnalysis

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ProgressiveFailureAnalysis

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

Formats the value using the given formatter.