Meshing in 3DX vs. Meshing in Abaqus CAE: Does comparison makes sense!

Meshing in 3DX vs. Meshing in Abaqus CAE: Does comparison makes sense!

Analysts are analysts and they have an analytical mindset. So whenever a traditional Abaqus user is exposed to a radically different application such as 3D Experience platform, he looks at it with intricacy. The level of inquiry is high and meshing is always one concern that cannot be skipped. Quite often this discussion ends up in a comparison between 3DX meshing and Abaqus CAE or between 3DX meshing and third party meshing applications. This blog is around comparison between the Abaqus CAE and 3DX meshing capabilities. I have tried to make as many apples with apples comparison as possible by taking same part as reference in both the environments.

Take a look at the frame structure. It’s a thin solid part that has been meshed in Abaqus CAE as well as in 3DX. The frame has been partitioned at many sections to get maximum hexahedral elements. When this frame is taken in Abaqus CAE mesh module, it looks like this: The green region is structural mesh domain and yellow regions is sweep mesh domain. However, both of these approaches give a hexahedral mesh.

When the same part is taken in 3D Experience platform, there are bunch of meshing tools in the meshing app. However, the one most straightforward for use without as many partitions as used in CAE is the partition hex mesh approach. The technique shows the following color code.

Its worth mentioning here that in 3DX the yellow represents the sweep mesh region and orange represents the free mesh regions. This is different coding from CAE where orange represents region that cannot be meshed. The mesh looks as below with 75 percent hexahedral and 25 percent tetrahedral elements.

Conclusion: Using very similar meshing techniques of partition, we get different kinds of meshes in the two applications. At the same time, using a different design method with no partitions, it is possible to get all hexahedral elements in 3DX.

Its also worth to show here all the meshing methods in 3DX meshing app. While few of these are available in CAE as well, other such as partition hex mesh and hex dominant mesh do not. At the same time, CAE offers bottom’s up meshing method that does not exist in 3DX. So meshing comparison between 3DX and Abaqus CAE is indeed an apple with orange comparison.

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Ankur Kumar

Simulation Specialist at Tata Technologies
Ankur has 11 years of experience in Computer Aided Engineering and has obtained the SIMULIA Design Sight, EPP and Support certifications from Dassault Systemes.

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Ankur Kumar

Simulation Specialist at Tata Technologies
Ankur has 11 years of experience in Computer Aided Engineering and has obtained the SIMULIA Design Sight, EPP and Support certifications from Dassault Systemes.