JUJUMI工程计算器 · Engineering Calculators

Cantilever — Point Load

Compute max bending moment and free-end deflection of a cantilever with an end point load.

Inputs

Formula

Mmax = P·L; δ = P L³/(3EI)
P固定端M_max = P·L, δ = P L³ / 3EI
Cantilever — Point Load schematic

How to use

  1. Fill in Length L, End load P, Young's mod. E, Moment of inertia I in the Inputs section (watch the unit on each field).
  2. Click Calculate; the tool evaluates the formula shown above.
  3. Read Max moment Mmax, Free-end defl. δ in the results area.
Formula notesCantilever, tip load P, length L: fixed-end moment M = P·L, deflection δ = P·L³/(3EI).