Tips & Tricks

How to simulate welding process with variable weld speed and Heat power ?

In real process, the user changes the velocity depending to the distance already covered or still to cover in welding process. To better reproduce the start and the end of a welding process, the velocity must be able to vary during at least these two phases as well as the heat source power. And to be more generic, this feature introduces a time dependency of the heat source velocity and its power density.

Horse saddle distortion modelling in Visual Weld

Welding of structures involves complex interactions between thermal, metallurgical and mechanical phenomena leading to residual stresses and distortions, which play a major role during subsequent service of these structures. Controlling material characteristics, residual stress and keep distortion within tolerances via the computer can significantly enhance the performance, the quality of the product and the structure’s service life

Restart Sysweld thermo-metallurgy and mechanical calculation in batch mode

The aim of this article consists to show sysweld/systus users how to perform a restart computation when a calculation run in batch mode is stopped in middle for some reasons or not.

Overview of CSM Welding Advisor in Visual Environment 18.0.2

This tip is to give an overview of new CSM welding advisor in Visual Environment 18.0.2. This new advisor comes in replacement of Visual Welding advisor and uses Assembly solver to perform transient welding simulation.

Friction Stir Welding modelling with an Axi-symmetric tool

Friction Stir Welding (FSW) is an innovative technology, which allows a solid junction of heterogeneous alloys, using a wear-resistant rotary tool that follows the welding seam. ESI Welding solution allows todays to predict temperature generated by FSW process. The proposed methodology is based on local approach that cannot give global distortion of the welded components. The aim of this article is to show how user can setup it own FSW process and run the computation using Visual Weld application

e-Café #2 PYFUN, PYSTOP - Programmer ses propres critères d'arrêt de calcul

Comment programmer des critères d'arrêt de calcul en Python

e-Café #1- Construire sa propre carte matière MMAT à l’aide de Visual-Crash PAM

Construire sa propre carte matière MMAT à l’aide de Visual-Crash PAM

『VPS2016にて廃止されるキーワード』

ESIでは、日々、ソルバーへ機能を追加し性能の向上を図っています。しかし、中には時代遅れとなったり、他と連携が難しくなったりする機能が出てくることがあります。

『Sensorのオフセット機能（Load定義時）』

VPS2017に追加されたSensorの新機能について紹介します。Load定義の起動トリガーとしてSensorで設定した場合、VPS2017以前ではSensorが起動した時刻におけるLoadカーブの値が参照され、計算に適用されていました。VPS2017からはSensorが起動したタイミングをLoadカーブの時刻0とし、オフセットして計算を開始することが可能となりました

『DMP計算の領域分割方法』

DMP計算（Distributed Memory Parallel、分散メモリ並列計算）では、計算モデル（メッシュ）を指定した数に領域分割（Domain Decomposition）し、計算を行います。