8 ALTAIR Inspire Cast Tips: Choosing an Element Size

Article by Drew Tucker on Apr 16, 2020

Welcome to part four of our blog series where we share eight quick tips for getting started in Altair Inspire Cast . In parts one, two, and three we solved common meshing issues involving sleeves , vents , and internal voids . In this blog, we’re discussing how to choose the right size element for your simulation.

Tip #4. What size elements should I use for my simulation?

This is a common question that comes up when running simulations in Altair Inspire Cast, and the answer is...well, it really just depends.

There is, however, one rule that applies when trying to size your elements. There should be at least three elements through the thickness of the thinnest area of your casting.

So how do you find out where the thinnest section of your casting is? There are a few places to look: nominal walls, curved edges, but most commonly, at the gate.

Altair Inspire Cast Element Size

In this example, we can use the measure tool from the ribbon and use the “Measure Length” option to measure for the thinnest area. 

Altair Inspire Cast Measure Length

Altair Inspire Cast gate

In this example, we can see that the gate is 1.5 mm thick so our mesh size should be 0.5 mm.

Altair Inspire Cast Run Analysis

Note: If your computer is having trouble or taking too long to mesh the part, you may need to increase the element size. However, this is a good place to start. 

Next up in our series you’ll gain a better understanding of Component Mesh Factors. Learn what they’re all about here. 

If you have any questions or want to know more information about other Altair Simulation products like Inspire and HyperWorks please contact us .

About Drew Tucker

Drew Tucker is an Application Engineer for Manufacturing Solutions at Altair. He is the lead for Altair's explicit manufacturing simulation solutions in the Americas, and is heavily involved in metal casting & prototyping. Drew is a graduate from Western Michigan University's Engineering College and has over 10 years experience in manufacturing sector. Drew is focused on bridging the gap between additive and traditional manufacturing technologies specifically, through the use of simulation software.

View all posts by Drew Tucker


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