Beam Deflection & Bending Stress Calculator
Calculate maximum elastic deflection, bending moment, extreme fiber stress, and factor of safety for cantilever and simply supported beams with point or distributed loads.
Beam Loading & Boundary Conditions
m
N
Cross-Section & Material Properties
mm
mm
mm
Maximum Elastic Deflection
SAFE (FOS = 8.33)
1.00 mm
Span ratio: L / 2000 (Exceeds L/360 architectural standard)
Max Bending Stress (σ)
30.0 MPa
12.0% of Yield Strength (250 MPa)
Max Bending Moment (M)
2,500 N·m
2.50 kN·m at mid-span
Section Properties & Stiffness
Area Moment of Inertia (I):
4.17 × 10⁶ mm⁴
Elastic Section Modulus (Z):
83.3 × 10³ mm³
Flexural Rigidity (E·I):
833.3 kN·m²