FRP Pultruded Profiles Calculation Formulas

Weight (kg/m):
W = (a + b - t) × t × ρ / 1000
a, b = Leg lengths (mm), t = Thickness (mm)

Tensile Capacity:
T = (a + b - t) × t × σt × 0.001

Weight (kg/m):
W = [2×(h + b) - 4×t] × t × ρ / 1000
h = Height, b = Flange width (mm)

Tensile Capacity:
T = [2×(h + b) - 4×t] × t × σt × 0.001

Weight (kg/m):
W = [b₁×t₁ + b₂×t₂ + (h - t₁ - t₂)×w] × ρ / 1000
b = Flange width, t = Flange thickness, w = Web thickness (mm)

Tensile Capacity:
T = Total cross-sectional area × σt × 0.001

Weight (kg/m):
W = (2×sidewall + base) × thickness × ρ × length / 1000

Load Capacity:
F = (EI)/(0.013×L³)
E = Modulus (~17 GPa), I = Moment of inertia, L = Span length (mm)