What this calculator helps you find
Shear force changes abruptly at a concentrated load. Under a uniform distributed load, the shear-force diagram is linear; under a linearly varying load, it is curved. Compare the diagram with the applied loading and support reactions to check equilibrium.
Relevant formula
dV/dx = −w(x)
Worked example
A centered 10 kN point load on a simply supported beam produces a positive constant shear of 5 kN before the load, a 10 kN downward jump at the load, and negative 5 kN afterward.
Use results responsibly
Use this tool for idealized, static two-dimensional analysis and for checking calculations. Confirm units, sign conventions, supports, material properties, and applicable design standards before using results in a project. Review the assumptions and limitations and validation records.