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When Ansa is used as Abaqus preprocessor for analysis, the problem of applying bolt pretension is often encountered. In addition to the complex settings, it is also easy to make mistakes, and various problems may occur if you are not careful. The following records the Ansa bolt pretension setting process and some easy mistakes, which will be used as a reference for related analysis later.

1. Solid+Assistant

The connection between the solid bolt and the flange surface must be established first. For details, please refer to Abaqus contact settings 。

For frequent Markdown users, image storage has always been a challenge. Markdown itself does not support embedded images, traditionally requiring external links to local or online files. However, publishing articles online raises storage issues. While image hosting services exist, the process can be cumbersome.

ortunately, Markdown supports image rendering via Base64 encoding. This tool Image2Base64 simplifies conversions between image files and Base64 encoding.

1. Features

Below is the graphical interface of the software (this screenshot uses Base64 rendering):

1. Compile cfmesh

The early compiled and installed OpenFOAM version of com, with the version number v2412, and there is no source code with cfmesh. According to the official documentation, you need to manually download the source code file of cfmesh:

cd $WM_PROJECT_DIR
git submodule update --init --recursive plugins/cfmesh

The following error occurs:

fatal: fatal: not a git repository (or any of the parent directories): .git

Okay, let’s try another approach. Download the source code directly through git to the specified folder, folder and URL path to view it .gitmodules document: