Beam Shear Stress Calculator
Peak web shear stress: 1.5V/A for rectangles, V/A_web for I-beams.
Shear peaks at the NEUTRAL AXIS (where bending stress is zero) โ the parabolic VQ/Ib distribution. In I-beams the web carries ~95% of V almost uniformly.
Formula
Beam Shear Stress Calculator is a free shear stress beam for structural engineers, fabricators and site engineers โ instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About Beam Shear Stress Calculator
Peak web shear stress: 1.5V/A for rectangles, V/A_web for I-beams. The calculation implements ฯ_max = 1.5ยทV/A (rect); โ V/(t_wยทd) (I-beam) (Shear stress distribution โ strength of materials). Shear peaks at the NEUTRAL AXIS (where bending stress is zero) โ the parabolic VQ/Ib distribution. In I-beams the web carries ~95% of V almost uniformly.
How to use Beam Shear Stress Calculator
- 1Enter Shear force V in kN.
- 2Enter Width (or web thickness) in mm.
- 3Enter Depth in mm.
- 4Enter Shape (1 rectangle (ร1.5) ยท 2 I-beam web (ร1.0)).
- 5Read Max shear stress instantly โ no submit button needed.
- 6Need US units? Flip the SI/Imperial toggle and every field converts.
Why use Beam Shear Stress Calculator?
- โImplements the standard formula โ ฯ_max = 1.5ยทV/A (rect); โ V/(t_wยทd) (I-beam)
- โReference cited on-page: Shear stress distribution โ strength of materials
- โOne-click SI โ Imperial toggle โ values convert in place, physics stays in SI
- โLive worked example: the substitution recomputes from your numbers
- โRuns entirely in your browser โ nothing uploaded, free forever
Frequently asked questions
What formula does the Beam Shear Stress Calculator use?+
It computes ฯ_max = 1.5ยทV/A (rect); โ V/(t_wยทd) (I-beam), per Shear stress distribution โ strength of materials. The formula is displayed under the result along with a worked example substituted with your own inputs.
What should I keep in mind when using this calculator?+
Shear peaks at the NEUTRAL AXIS (where bending stress is zero) โ the parabolic VQ/Ib distribution. In I-beams the web carries ~95% of V almost uniformly.
Can I use this for real structural design?+
It implements the exact textbook/code formula cited below the result and is ideal for sizing, checking and learning. Final designs should be verified by a qualified engineer against the full code with all load cases.
Is the Beam Shear Stress Calculator free to use?+
Yes โ completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
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