Axisymmetric Tutorial

This tutorial will illustrate the axisymmetric modeling option of Phase2. Axisymmetric modeling allows you to analyze a 3-D excavation which is rotationally symmetric about an axis. The input is 2-dimensional, but the analysis results apply to the 3-dimensional problem.

An Axisymmetric model in Phase2 is typically used to analyze the end of a circular (or nearly circular) tunnel. The model we will be analyzing, shown above, represents the end of a cylindrical tunnel of 4 meter radius.

Axisymmetric Tutorial (click to view PDF file of tutorial)

Topics Covered in this Tutorial

Axisymmetric modeling overview
Project Settings
Boundary conditions
Custom discretization
Axisymmetric field stress
Stress trajectories / hydrostatic stress
Displacements
Queries / graphing queries
Saving a query to a file
Plane strain comparison with axisymmetric results
Radial meshing

Axisymmetric model, end of cylindrical tunnel