CATI Tech Notes

SOLIDWORKS Tips and Tricks and Info on Professional 3D Printing with Stratasys from the Technical staff of CATI

SOLIDWORKS: How the Shell Can I Manage My SOLDIWORKS Simulation Shell Elements?

How the Shell Can I Manage My SOLDIWORKS Simulation Shell Elements?   If you were enticed by the title of this blog, then you are probably already aware of what a shell is and why they are so valuable. For those who are not aware, they are, in this context, a 2D element used in SOLIDWORKS Simulation. I will not bore you with too many details about shell elements, but instead show you some nifty techniques to help you manage and create shells more efficiently. Shells are defined by manually inputting several properties each time a body is converted to a shell element from a solid element. Who would want

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Posted in Daily Dose.....of SolidWorks Support, Simulation, SOLIDWORKS Tips and Tricks

Thermal stress study frozen in time? There’s a design study for that!

Before we get started I would like to provide a little background. There is no study type called “thermal stress” in SOLIDWORKS simulation. Thermal stress is simply the stress induced by a temperature load instead of a force or pressure. To obtain this information one must first create a thermal study and then use the output, temperature, as the prescribed load in a static study. One could also apply additional force and/or pressure loads, but this is atypical because the goal, for most applications, is to isolate the stress caused by heating or cooling. There are two types of thermal studies, steady-state and transient, and the default is steady-state. Suppose

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Posted in Daily Dose.....of SolidWorks Support, Simulation

SOLIDWORKS: Flow Simulation – Local Rotating Reference Frame

Flow Simulation – Local Rotating Reference Frame   When creating a flow simulation with rotating bodies, a reference frame can be defined globally or locally. If defined globally, all of the walls rotate in the model. A global definition would not be suitable for a single body rotating with respect to the entire model (ie a fan in an electronic enclosure). In this blog I will only be talking about local rotating reference frames and specifically the averaging type. How to Prepare the Assembly   This is really the least intuitive portion of creating a local rotating reference plane. As long as you can honor the following rules your models

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Posted in Daily Dose.....of SolidWorks Support, Simulation, SOLIDWORKS Tips and Tricks

SOLIDWORKS 2017 What’s New: Convert Static Study to Non-Linear or Dynamic – #SW2017

Convert Static Study to Non-Linear or Dynamic   The ability to convert static study to a non-linear/dynamic study has arrived in SOLIDWORKS 2017!! Except it is not called convert. In the past when right clicking on the study tab (bottom of screen) there was an option to “duplicate” a study. This “duplicate” study has been renamed to “copy study.”     When copy study is selected you may copy your previous study into a new static study or you may choose to change the type of study to either a non-linear or dynamic study. As before when using duplicate study you may choose new configurations and/or choose a new name.

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Posted in Daily Dose.....of SolidWorks Support, Simulation, SOLIDWORKS What's New

SOLIDWORKS 2017 What’s New: Mesh Enhancements for Plastic Mold Simulation – #SW2017

Mesh Enhancements for Plastic Mold Simulation   The SOLIDWORKS Plastics 2017 mesh enhancements increase user convenience, enable more accurate runner simulation, and decrease processing time. When generating a mesh on a model that has had a mesh previously generated a new option is available to “use previous design.”     By using the previous design, the user no longer needs to be concerned with mesh parameters when generating an identical mesh. Now a new mesh can be quickly generated in order to vary other design criteria like material or injection position.     While the ability to vary runner diameters has been available in the past, there was only one

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Posted in Daily Dose.....of SolidWorks Support, SOLIDWORKS What's New

FORCE/AREA STRESSING YOU OUT? HOW TO APPROXIMATE STRESS RISERS IN SOLIDWORKS

Have you ever conducted a Simulation study in SOLIDWORKS and asked yourself, “How can this part be yielding, I’ve only applied 200 pounds of force?” And then you noticed that the whole part is well below yield except for the area around a small edge. In engineering this is referred to as a stress riser which is basically a location on the geometry where stress is concentrated. Theoretically we are unable to evaluate the stress at these locations because the equations of FEA evaluate to infinity. 1 Stress Riser How can we be confident that the real part will not yield at these locations? Fortunately, we have a couple techniques

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Posted in Simulation

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