Bending Stress Calculator

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Bending Stress Calculator

Calculate bending stress in beams using the flexure formula. Supports rectangular, circular, and custom cross-sections.

Section Shape *

Load Type *

Base (b) *

Height (h) *

Bending Moment (M) *

lb·in

Material Yield Strength (optional)

psi

Steel: 36,000 psi, Aluminum: 20,000 psi, Wood: 5,000 psi

Show Steps

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Maximum Bending Stress

—

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Section Modulus (S)

—

in³

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Bending Stress (σ)

—

psi

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Factor of Safety

—

FOS

✅

Status

—

vs. Yield

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Calculation Breakdown

Step-by-step stress analysis

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Bending Stress Formulas

Flexure formula and section properties

⚙️ Engineering Disclaimer: This calculator provides estimates for bending stress based on simplified models. For critical structural design, consult a structural engineer who will consider all loads, supports, and applicable building codes.