Dead Load Calculator

import math

def dead_load(volume, density):
    """
    Calculate mass from volume (m³) and density (kg/m³).
    Returns mass in kg.
    """
    if volume <= 0 or density <= 0:
        raise ValueError("Volume and density must be positive.")
    return volume * density

# Example: Concrete (plain) (density = 2400 kg/m³)
L = 2
W = 1
H = 0.2
volume = L * W * H

mass = dead_load(volume, 2400)
weight_kg = mass  # in kg
weight_kN = mass * 9.80665 / 1000  # convert to kN
weight_lbf = mass * 2.20462        # convert to lbf

print(f"Volume: {volume:.3f} m³")
print(f"Mass: {mass:.3f} kg")
print(f"Weight: {weight_kN:.3f} kN  (or {weight_lbf:.3f} lbf)")

function [mass, weight_kN, weight_lbf] = dead_load(volume, density)
    % Calculate mass from volume (m³) and density (kg/m³).
    % Returns mass (kg), weight in kN and lbf.
    if volume <= 0 || density <= 0
        error('Volume and density must be positive.');
    end
    mass = volume * density;
    weight_kN = mass * 9.80665 / 1000;
    weight_lbf = mass * 2.20462;
end

% Example: Concrete (plain) (density = 2400 kg/m³)
L = 2;
W = 1;
H = 0.2;
volume = L * W * H;

[mass, weight_kN, weight_lbf] = dead_load(volume, 2400);
fprintf('Volume: %.3f m³\n', volume);
fprintf('Mass: %.3f kg\n', mass);
fprintf('Weight: %.3f kN (%.3f lbf)\n', weight_kN, weight_lbf);