Struct HssSection 

pub struct HssSection {
    pub b: f64,
    pub h: f64,
    pub t: f64,
    pub fy: f64,
    pub e: f64,
}

Hollow Structural Section (HSS / RHS) properties.

Fields

b: f64

Outer width B (mm).

h: f64

Outer height H (mm).

t: f64

Wall thickness t (mm).

fy: f64

Yield strength Fy (MPa).

e: f64

Modulus of elasticity E (MPa).

Implementations

impl HssSection

pub fn rectangular(b: f64, h: f64, t: f64, fy: f64) -> Self

Create a rectangular HSS section.

pub fn square(b: f64, t: f64, fy: f64) -> Self

Create a square HSS section.

pub fn area(&self) -> f64

Cross-sectional area (mm²).

pub fn ix(&self) -> f64

Moment of inertia about strong axis Ix (mm⁴).

pub fn iy(&self) -> f64

Moment of inertia about weak axis Iy (mm⁴).

pub fn sx(&self) -> f64

Elastic section modulus Sx (mm³).

pub fn zx(&self) -> f64

Plastic section modulus Zx (mm³) (approximate for rectangular HSS).

pub fn plastic_moment(&self) -> f64

Nominal moment capacity Mp = Zx * Fy (N·mm).

pub fn torsional_constant(&self) -> f64

Torsional constant J (mm⁴) for closed section.

pub fn warping_constant(&self) -> f64

Warping constant Cw ≈ 0 for closed HSS (negligible).

pub fn web_slenderness(&self) -> f64

Slenderness ratio for local buckling (web): h/t.

pub fn flange_slenderness(&self) -> f64

Slenderness ratio for local buckling (flange): b/t.

pub fn compact_flange_limit(&self) -> f64

AISC compact limit for HSS flanges: λp = 1.12 * sqrt(E/Fy).

pub fn flange_is_compact(&self) -> bool

Check if flange is compact.

Trait Implementations

impl Clone for HssSection

fn clone(&self) -> HssSection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HssSection

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

Formats the value using the given formatter.