FEM FrontISTR Workbench: Difference between revisions

Revision as of 11:23, 10 May 2021

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Introduction

The FEM FrontISTR Workbench is a FreeCAD addon that enables FrontISTR, an open-source large-scale parallel FEM program for nonlinear structural analysis.

Intended work-flow

Set up an analysis model by FEM module (in the same way as calculiX).
Switch module to "FrontISTR" and create a FrontISTR solver object.
Open the task panel of SolverFISTRTools and set working directory.
Click "Write input file"
Click "Run FrontISTR"
Check FISTR_Results for post processing.

Features

static analysis, element check
geometrical linear|nonlinear analysis
elements: 1st/2nd order tetrahedron
loads: mechanical concentrated and distributed loads, gravity
boundary: points fixed or displacement
step control: auto time increment and cutback
linear equation solver
- iterative
  - preconditioner: AMG, SSOR, Diagonal, ILU(k)(k=0,1,2)
  - method: CG, BiCGSTAB, GMRES, GPBiCG
- direct: MUMPS
output file format: AVS, VTK(paraview required)

Features to be supported in the future

analysis: thermal transfer, dynamic, eigen, frequency
materials(mechanical): elastoplastic, hyper elastic, creep, visco elastic
contact
MPC(TIE)
elements: prism, hexa, beam, shell, truss etc.

Limitations

FISTR_Results only contains results for surfaces. If you need the interior results, change Output File Format to VTK and visualize the results with paraview.

Benchmark results

See https://github.com/FrontISTR/FEM_FrontISTR/tree/master/sample/benchmarks.

Installation

Automatic

Under preparation.

Manual

See How to install additional workbenches

Prerequisites

FreeCAD v0.19+
Paraview (optional)

FrontISTR Solver Installation

FrontISTR binaries will be automatically downloaded and installed on the first run. If the download does not proceed, please follow the steps below to install the solver.

Windows

Download FrontISTR-latest.zip
Create directory FEM_FrontISTR/bin
Extract FrontISTR-latest.zip and put all files in FEM_FrontISTR/bin directory.

Linux

Under preparation.

Mac

Under preparation.

Tools

Solver FrontISTR Standard: Creates a new FrontISTR solver for this analysis.

References

Author: kinagaki rigarashi
Source code: Github.com
FreeCAD Forum: 58019
Tutorials: https://frontistr-commons.gitlab.io/FEM_FrontISTR/en/
FrontISTR solver documentation: https://manual.frontistr.com/en/
Report bugs: Please report bugs at Github.com

@@ Line 2: / Line 2: @@
 <translate>
+<!--T:1-->
 [[File:FrontISTR.svg|thumb|128px|FEM FrontISTR Workbench icon]]
@@ Line 8: / Line 9: @@
 <translate>
-== Introduction ==
+== Introduction == <!--T:2-->
+<!--T:3-->
 The [[File:FrontISTR.svg|24px]] FEM FrontISTR Workbench is a FreeCAD addon that enables FrontISTR, an open-source large-scale parallel FEM program for nonlinear structural analysis.
@@ Line 16: / Line 18: @@
 <translate>
-=== Intended work-flow ===
+=== Intended work-flow === <!--T:4-->
+<!--T:5-->
 # Set up an analysis model by FEM module (in the same way as calculiX).
 # Switch module to "FrontISTR" and create a FrontISTR solver object.
@@ Line 25: / Line 28: @@
 # Check FISTR_Results for post processing.
-=== Features ===
+=== Features === <!--T:6-->
+<!--T:7-->
 * static analysis, element check
 * geometrical linear|nonlinear analysis
@@ Line 40: / Line 44: @@
 * output file format: AVS, VTK(paraview required)
-=== Features to be supported in the future ===
+=== Features to be supported in the future === <!--T:8-->
+<!--T:9-->
 * analysis: thermal transfer, dynamic, eigen, frequency
 * materials(mechanical): elastoplastic, hyper elastic, creep, visco elastic
@@ Line 48: / Line 53: @@
 * elements: prism, hexa, beam, shell, truss etc.
-=== Limitations ===
+=== Limitations === <!--T:10-->
+<!--T:11-->
 * FISTR_Results only contains results for surfaces. If you need the interior results, change Output File Format to VTK and visualize the results with paraview.
-=== Benchmark results ===
+=== Benchmark results === <!--T:12-->
+<!--T:13-->
 See https://github.com/FrontISTR/FEM_FrontISTR/tree/master/sample/benchmarks.
-== Installation ==
+== Installation == <!--T:14-->
-=== Automatic ===
+=== Automatic === <!--T:15-->
+<!--T:16-->
 Under preparation.
-=== Manual ===
+=== Manual === <!--T:17-->
+<!--T:18-->
 See [[How to install additional workbenches]]
-=== Prerequisites ===
+=== Prerequisites === <!--T:19-->
+<!--T:20-->
 * FreeCAD v0.19+
 * [https://www.paraview.org/ Paraview] (optional)
-=== FrontISTR Solver Installation ===
+=== FrontISTR Solver Installation === <!--T:21-->
+<!--T:22-->
 FrontISTR binaries will be automatically downloaded and installed on the first run. If the download does not proceed, please follow the steps below to install the solver.
-==== Windows ====
+==== Windows ==== <!--T:23-->
+<!--T:24-->
 # Download [https://www.frontistr.com/download/link.php?https://frontistr-commons.gitlab.io/FrontISTR/release/x86_64-w64-mingw32-msmpi/FrontISTR-latest.zip FrontISTR-latest.zip]
 # Create directory FEM_FrontISTR/bin
 # Extract FrontISTR-latest.zip and put all files in FEM_FrontISTR/bin directory.
-==== Linux ====
+==== Linux ==== <!--T:25-->
+<!--T:26-->
 Under preparation.
-==== Mac ====
+==== Mac ==== <!--T:27-->
+<!--T:28-->
 Under preparation.
-== Tools ==
+== Tools == <!--T:29-->
+<!--T:30-->
 * [[Image:FEM_SolverCalculixCxxtools.svg|32px]] [[FEM_SolverFISTRtools|Solver FrontISTR Standard]]:  Creates a new FrontISTR solver for this analysis.
-== References ==
+== References == <!--T:31-->
+<!--T:32-->
 * Author: kinagaki rigarashi
 * Source code: [https://github.com/FrontISTR/FEM_FrontISTR Github.com]