Y max = distance to extreme point from neutral axis (m, mm, in) Σ max= maximum stress (Pa (N/m 2), N/mm 2, psi) L = length of beam (m, mm, in) Maximum StressĮquation 1 and 2a can be combined to express maximum stress in a beam with uniform load supported at both ends at distance L/2 as Q = uniform load per length unit of beam (N/m, N/mm, lb/in) The maximum moment is at the center of the beam at distance L/2 and can be expressed as The moment in a beam with uniform load supported at both ends in position x can be expressed as Beam Supported at Both Ends - Uniform Continuous Distributed Load The calculator below can be used to calculate maximum stress and deflection of beams with one single or uniform distributed loads. Beams - Fixed at Both Ends - Continuous and Point Loads.Beams - Fixed at One End and Supported at the Other - Continuous and Point Loads.
Y = distance to point from neutral axis (m, mm, in) The stress in a bending beam can be expressed as