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Moving Heat Source - ANSYS ACT Extension

Welding or laser cutting processes are common in manufacturing. Modeling of moving Gaussian heat source can be used to simulate these processes by predicting how much heat is needed to put into an object as well as how fast it dissipates.

An accurate prediction of the transient thermal field generated can also help predict the residual stresses generated, which in turn can affect life prediction analysis. In the past, modeling this type of moving heat source was time consuming and required creating custom MAPDL commands. Now, a free ANSYS ACT Extension is available in the ANSYS App Store that simplifies this greatly. The “Moving Heat Source Version 4.1” application facilitates the definition of a moving heat source in Workbench Mechanical with a user interface. ANSYS versions 17.0, 17.1, and 17.2 are supported.

Applying the Moving Heat Source Extension

Using this plugin, you can quickly model a moving heat source by simply entering the required inputs. The requirements needed are the face of the body which the moving heat flux will be applied to as well as the path of the heat source. The speed, radius, and power intensity of the heat source also must be defined. A number of other options exist for timestep control, cooling phase, or even modeling material removal.

The ACT extension can be found here: Moving Heat Source v4.1 (registration required) currently only ANSYS version 17.x is supported. All ACT extensions come with documentation on how to install and use the extension.

ANSYS ACT Extension ANSYS ACT Extension

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