Tips & Tricks

Heat Power display in Visual Weld

The aim of this development in Visual Weld 14.5 + Sysweld 2019.0 is to display the Power Density. Currently, this functionality is only available in the old SysWeld GUI. The new functionality "Heat Power Display" is available through the "Welding Utilities" menu of Visual Weld.

Delta T Offset For Bowing Effect in Assembly Process

In case of butt joint of two plates, in reality, there is an eccentricity e between the neutral phase of bending and the centre of the tendon force caused by the weld which causes the typical horse saddle of a butt welded flat plate.. A functionality Delta T Offset  has been developed in order to overcome the limitation due to the shrinkage methodology that cannot provide correct results for a butt joint with a non-symmetrical welding. With this new development, it will be possible to apply an offset value on the thermal loading between upper and lower surfaces of shell. In consequence, the horse saddle effect of a butt welded flat plate is produced with Assembly solution.

Conversion Files .fdb in .erfh5 on Network Drive

It is not straightforward to do the conversion Files .fdb in .erfh5 on Network Drive in Visual Viewer. In order to make it work properly, it is necessary to map network drive to the local machine. In this way, the files on network could be handled like on local machine and the conversion from fdb to erf will be working properly.

Crash when launching Visual on CentOS

On Linux, at moment of launching Visual-Environmnet, crash happens after having selected Visual Weld. It is possible to try following steps to solve the problem. - Launching Visual in debug mode - Downgrade GlibC to 2.12 - Install freshly NTP

Coupling windows for postreatment visualization

When comparison between results is needed, coupling windows and synchronizing animations is a key tool.

Boundary Layer Mesh tool demonstration

Easily creating a connection between a tetramesh and an hexamesh is possible, using Boundary Layer Mesh tool.

Heat Sources in Sysweld

From finite element point of view, a heat source is modelled in SYSWELD by a volume density of energy named Qr (W/mm3) applied to elements, which move along the welding trajectory.

Weld Fatigue analysis based on the Dang Van Criteria

Numerical modeling of fatigue behavior has become critical for welding applications. For this purpose the ‘Dang Van criterion’ has been integrated in SYSWELD for fatigue evaluation of welded structure under multi-axial loadings. The Dang Van fatigue damage criterion is used to predict crack initiation and life duration of components subjected to damaging load. This criterion is based on multi-scale approach which assumes that shakedown occurs before crack initiation.

How to report and talk about simulation time in an objective manner

Reporting or talking about simulation time is a difficult subject. In the article a way to manage this problem in an objective manner is given.

Materials in the database - Which material properties to use with respect to the three methods to simulate the heat effects of welding

A material is described with exactly one set of material properties. In simulation engineering - depending on the applied method and the moment in time when the simulation is carried out in the product development cycle - only subsets of a full material data set might be required. In this article is outlined which subset is used for which purpose, what is available in the database, and what can be simulated.