For Students · Shear & Moment
Shear & Moment for a steel beam
Built for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition. Simulate a steel beam live below — adjust the inputs and watch it respond, right in your browser.
Shear & Moment DiagramsLive
simply-supported beam
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Shear and bending-moment diagrams show the internal forces along a beam. Shear jumps at each point load; the moment is the running integral of shear and peaks where shear crosses zero. Engineers size beams for this maximum moment. Educational tool, not a substitute for structural design.
Data Inspector
Reaction A28.3 kN
Reaction B21.7 kN
Max moment46.6 kN·m
at x2.01 m
Governing equation
Reading this result: Combined loading: reactions RA=28.3 and RB=21.7 kN, and the maximum moment 46.6 kN·m lands at x=2.0 m where shear crosses zero.
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- Is this good for students?
- Yes — this version of "Shear & Moment for a steel beam" is framed for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.