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Simuleon FEA Blog

Join our online webinar: Substructures & Submodelling with Abaqus FEA

Posted by Dolf Broekaart on Feb 21, 2020 12:23:01 PM

How to strike the right balance between accuracy and solve times has been a major consideration for analysts since the inception of FEA.

In an ideal world we would include all parts and mesh each thread and fillet to ensure we have captured every detail of the model accurately. However, experienced analysts know that even with the luxury of modern-day processors, for many applications this is still a pipe dream. In reality, we tend to use our engineering judgement to omit certain parts or features and reduce mesh densities to reach acceptable but compromised solutions.

Luckily for us, Abaqus has a couple of “have your cake and eat it” solutions to this perennial problem in the form of substructures and sub-modelling. 

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Topics: software, Abaqus, submodelling, Abaqus Submodelling, Substructures

Join our substructures and submodelling Webinar

Posted by Dolf Broekaart on Oct 23, 2017 2:00:46 PM

Simuleon hosts 10 Technical Webinar Training during a year as part of the paid online continual learning program. Costs for this continual learning program are EUR 1.175,00 for a full year. More information about the continual learning program can be found here.

Substructures & Submodelling with Abaqus FEA

October’s webinar will look at analysing large models using techniques such as substructures and submodelling. It will be held on Friday 27th October.

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Topics: submodelling, Abaqus Submodelling, Substructures

Use submodeling in Abaqus to focus on region of larger model

Posted by Christine Obbink-Huizer on Aug 14, 2017 4:05:38 PM

In some cases results of interest are on different length scales. The overall behaviour of a product is of interest, but also the detailed behaviour of a specific part. It is possible to create a locally refined mesh, but this is often time consuming. Meshing will be more troublesome and the computational cost can significantly increase with a more refined mesh. Also, it is not always known in advance exactly which region should be refined.

An alternative is to use submodeling. First the complete model is analysed, usually with a relatively coarse mesh. To get more detailed information on the specific part, results from the complete model can be used to define boundary conditions for the part. This is also a suitable approach when it is not possible to determine the boundary conditions on the part, without taking into account the rest of the product. In this blog I will explain what Abaqus does when the submodeling capabilities are invoked, show how easy it is to set up an analysis using submodeling and discuss the things you need to pay attention to yourself.

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Topics: Abaqus, submodelling

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