Notes from WelSim

May 27, 2026

The mesh of engineering simulation 2: element size control

Most modern engineering simulation software can perform complex meshing, making controlling mesh element size one of the most commonly used tasks.

May 17, 2026

The mesh of engineering simulation 1: data structures

Modern engineering simulation software is feature-rich. Being the first stage of any simulation pipeline, meshing plays a critical role...

April 1, 2026

WELSIM 2026R2 releases with all new dark theme GUI

WELSIM, a general-purpose engineering simulation and analysis software, has released its latest 2026R2 version (internal version 3.3)....

March 20, 2026

Multi-style interface for Qt-based desktop software

Qt is one of the most popular cross-platform C++ Graphical User Interface (GUI) application frameworks in the world. Its most powerful features...

February 1, 2026

Parameters in hyperelastic model curve fitting

Many tasks in finite element analysis require curve fitting. Especially in materials engineering...

January 16, 2026

Generate the contact and boundary conditions for the CalculiX solver

CalculiX is a well-known open-source Finite Element Analysis software that focuses on structural mechanics...

January 5, 2026

WELSIM 2026R1 Releases to Support Particle Generation and Enhance Electromagnetic Simulation

WELSIM, the general-purpose engineering simulation and analysis software, has released its latest version 2026R1 (Internal Version: 3.2)...

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June 1, 2017

Structural analysis on plate with a central single circular hole

In this essay, we demonstrate a stress analysis of a plate with a central single circular hole subjected to axial loads. The aim of this study is to understand...