FrontISTR v5.0b Release Notes¶

November 9, 2018

FrontISTR v5.0β Has Been Released!¶

FrontISTR v5.0β

• Release date: November 1, 2018
• Changes from v5.0α (February 11, 2018)
  • Improvements: 9
  • Specification changes: 5
  • Bug fixes: 11
  • Others: 2
• How to obtain FrontISTR v5.0b
  • Download from the FrontISTR Study Group data reservoir
  • Clone from GitHub
• Online manual
• Acknowledgments

Changes from v5.0α: Improvements¶

• Speedup of the node_global_to_local function
• Added contact-related variables to the result output
• Large rotation support for the friction force computation
• Added binary VTK format to the visualization files
• Implementation of the cell data output function to VTK files
• Speedup of material definition reading
• Support for the iterative method when both contact and MPC are present
• Nonlinear analysis support for incompatible elements
• Added an axial force computation function for beam elements

Changes from v5.0α: Specification Changes¶

• Changed the default stress-strain output to true stress / logarithmic strain
• Changed the default of 361 elements to Fbar elements
• Changed so that when the residual is NaN, it is regarded as having exceeded maxres
• Changed the default output of the sample input files to VTK
• Fix to return the solution as 0 immediately when the right-hand-side vector passed to the linear solver is 0

Changes from v5.0α: Bug Fixes¶

• Fix of the thermal strain computation for Fbar elements and the stress update in the update lagrange method
• Fix of the defect in initial temperature setting
• Fix of the reaction force output
• Fix of the defect where the number of output points in Gaussian integration point output is determined by only the first 1 element
• Fix of the defect in the residual computation in rotational displacement control (!BOUNDARY, ROT_CENTER)
• Minor fixes related to compilation
• Fix of the convergence deterioration in elasto-plastic analysis
• Fix of the problem where the right-hand-side vector is zero-cleared after the contact search, and the first displacement increment of the next NR iteration becomes 0
• Fix of the convergence criterion of the Lanczos method in eigenvalue analysis
• Fix of the visualization file output hecmw_vis.ini
• Fix of several memory leaks

Changes from v5.0α: Others¶

• Removal of metis-copyright and the manual
• Creation of the programmer information file

How to Obtain FrontISTR v5.0b¶

Download from the FrontISTR Study Group data reservoir

FrontISTR Study Group https://www.frontistr.com/

→ "Menu" → "Data Reservoir" → "FrontISTR Ver.5.0b (181101)"

(User registration is required)

※ These are the procedures at the time as published in the original material. For a screen example, refer to the original figure.

How to Obtain FrontISTR v5.0b¶

Clone from GitHub

https://github.com/FrontISTR/FrontISTR/

Select the [tag] tab and click "Clone or download"

※ These are the procedures at the time as published in the original material. For a screen example, refer to the original figure.

How to Obtain FrontISTR v5.0b¶

Clone from GitHub

% git clone -b v5.0b https://github.com/FrontISTR/FrontISTR.git
% cd FrontISTR
% git status

For an example of the execution screen, refer to the original figure.

Online Manual (v5.0b) Public Release¶

The manual is now available online

• https://frontistr-commons.gitlab.io/FrontISTR_manual/v5.0b/ja/ (Japanese version)
• https://frontistr-commons.gitlab.io/FrontISTR_manual/v5.0b/en/ (English version)

※ There are parts where the translation into English is a little behind.

※ From this version onward, distribution in PDF will no longer be provided.

Example of the Online Manual Display¶

A screen example of "Theory Manual → Dynamic Analysis Methods". The entire screen containing formulas is included as an original figure.

Acknowledgments¶

Number of commits: v5.0α → v5.0β

FrontISTR.git

FrontISTR_manual.git

※ The number of commits merged into master from v5.0a to v5.0b in the git repository was counted (the manual from 2018/2/7 onward)

※ Merge commits are not counted

※ Notational variations of author names were merged manually

Thank you very much for your many commits