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How to Link Abaqus with Intel FORTRAN

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Description

Here we explain how to link Abaqus with visual studio and intel FORTRAN. Before starting let’s explain the Abaqus and subroutine to understand why we need to link Abaqus.

Abaqus:

Abaqus is an FEA software used to analyze models with high complexity. The provided option by this software creates a great environment for studying various models. Not even solid mechanics but also thermal and fluid mechanic models can be simulated in this software. It is worth mentioning that the fluid mechanic model was separated after Abaqus 6.16 and since version 2017 the company started to develop an independent solver for it. In order to increase the complexity of models, engineers can use FORTRAN to develop subroutine code and Python to create a model by scripting. Here we provide a simple description to explain how these two features help you develop a model.

Subroutine for Abaqus:

Imagine you are trying to create a complex model. You are ready to define your material properties, boundary condition and loads. Now, you notice your material properties are very complex and they change by time. Even if you didn’t have this problem, you would need to change the value of time-dependent on material properties. You look at the Abaqus feature and think there is no way you can do it. In fact, your model should change during the process. Your values are not just a simple number and you need to make them as a function of time and other variables. Here is the time you need to use subroutine to define those complex properties in your model. You need to use the proper function known as Subroutine and define your function there and run that by your model.

More examples to explain subroutine usage:

1- If you want to define a complex material that is dependent on load, time, element position, and many other factors, you need to use either UMAT or USDFLD subroutines.

Anisotropic material in Umat code for Abaqus

An Example for USDFLD Subroutine in Abaqus

2- You want to define a complex load on a surface. For example, you want to define the load as a function of material position to simulate the effect of water pressure on the simulation. Also if your load is following a specific shape like Goldak heat flux in the thermal model you need to use a subroutine.

An Example for Dload Subroutine

An Example for Dflux Subroutine

3-If you need to control the time increment size during the simulation process or when your model stops, you need to use a subroutine.

About this product:

We will show you how to link Abaqus with Intel and visual studio. This approach is suitable to link the Abaqus version from 2016 to 2020. This method might work on older versions too. The software version for visual studio and the Intel compiler is 2015 in this video. They can be from a higher version but this version has been tested for several Abaqus versions. For Abaqus you need to have the Abaqus license and using a student license is not enough. However, for the Visual Studio and Intel Compiler having a student license is good enough.

Using Subroutine in Abaqus helps you create complex models. Sometimes a model requires some subroutine codes and it is inevitable. Thus, linking Abaqus might not be necessary for you now but you will need it in the future. If you think you need more background you can visit the other video about the subroutine (Please click here).

The video is short so you can learn this in less than 10 minutes.

 In this video, we avoid giving too many details so you can easily use the product. Here, you can download the video file for free.

For more information please send me an Email:

rezatangestani@hyperlyceum.com

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HLyceum

Easy learning
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