The link was sent to your email.

We were unable send the link to your email. Please check your email.

Missing captcha code. Please check whether your browser is not blocking reCAPTCHA.

Invalid captcha code. Please try again.

Online Help

GEO5

Tree
Settings
Product:
Program:
Language:

Solution Method

The program FEM serves to analyze geotechnical problems characterized by a nonlinear response of the soil or rock body. A successful analysis of most of such problems calls for an iterative solution of a given boundary value problem. Applying the finite element method (FEM) then leads to an incremental form of the equilibrium conditions written as:

where:

ΚΤ

-

instantaneous stiffness matrix

Δu

-

vector of nodal displacement increments

Δf

-

vector of out-of-balance force increments

This equation can be solved only approximately using a suitable numerical method. The goal of the method is to arrive, during the process of iteration, at such a state of stress and strain that satisfies the condition Δf = 0. To that end, the program offers two basic methods:

  1. Newton-Raphson method - NRM
  2. Arc-length method - ALM

Analysis settings - setting the solution method

Try GEO5 software yourself.
Download Free Demoversion.