Load Increment

Glossary Term

The specification of load increments is primarily applied to the calculations according to the second-order analysis and the large deformation analysis: when considering large deformations, it is often difficult to find an equilibrium. If the loading is applied incrementally, it is possible to avoid instabilities.

For example, if there are two load increments specified, a half of the load is applied in the first step. It is iterated until the equilibrium is found. In the second step, the full load is then applied to the already deformed system and iterated again until the equilibrium is found.

Load increments have a negative effect on the computing time.


Load increment Instability Load application Large deformations Iterative calculation


RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD
RSTAB Main Program
RSTAB 8.xx

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,550.00 USD