Structural Beam Deflection & Maximum Bending Stress Calculator
Calculate maximum central deflection (δ in mm), peak bending moment (M_max in N·m), and shear forces for simply supported structural beams under concentrated point loads.
Calculator Inputs
Live Real-TimeMaximum Mid-Span Deflection (δ)
Maximum Bending Moment (M_max)
12,500 N·m
Support Reaction Shear Force (V)
5,000 N
Code Allowable Deflection Limit (L/360)
13.89 mm
Structural Safety Passed: Computed deflection remains safely within the L/360 engineering limit.
Deflection vs Allowable Limit
Detailed Calculation Breakdown
Calculation Methodology
Central Point Load Deflection: δ_max = (P * L^3) / (48 * E * I). Max Bending Moment: M_max = (P * L) / 4. Maximum Shear: V_max = P / 2.
Important Legal & Educational Disclaimer
This structural engineering mechanics tool computes elastic flexural beam deflection.
This calculator is designed for educational and informational purposes only based on public statutory frameworks. The outputs do not constitute binding financial, tax, or legal advice. We assume no liability for decisions made based on these estimations. Always verify with the relevant official authorities or a certified professional advisor.
Frequently Asked Questions
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