JUJUMI工程计算器 · Engineering Calculators

Bending Stress

Compute bending normal stress σ = M/W from bending moment and section modulus.

Inputs

Formula

σ = M / W
压应力 (上)拉应力 (下)σ = M·c / I = M / W
Bending Stress schematic

How to use

  1. Fill in Bending moment M, Section modulus W in the Inputs section (watch the unit on each field).
  2. Click Calculate; the tool evaluates the formula shown above.
  3. Read Bending stress σ in the results area.
Formula notesBending normal stress σ = M·c/I = M/W; one extreme in compression, the other in tension.