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Free Fortran compiler on Windows for Abaqus material modeling - UPDATED

Posted by Christine Obbink-Huizer on Jan 6, 2022 12:35:34 PM

This blog is on installing the Intel oneAPI Fortran compiler for use with Abaqus. It is an update of my previous blog, where some relevant information was only available in the comment section. This blog is intended to be used as a reference instead of the old blog.

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Topics: Abaqus, Tips, Tricks & Approaches, compiler, material modeling, fortran, user-subroutines

Deep drawing: iterative design with Abaqus

Posted by Christine Obbink-Huizer on Jun 1, 2021 1:15:51 PM

In this blog we'll simulate a sheet metal forming process called deep drawing, with SIMULIA Abaqus Software. It can be challenging to design a deep drawing product and the tools to create it, because many potential issues are not observed until the first prototype is produced. Simulations can help determine whether a design suffices, without actually having to create costly tools or do time consuming tests. Multiple design iterations can easily be investigated.

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Topics: metal forming, Tips, Tricks & Approaches, sheetmetal, deep drawing

Parametric or non-parametric optimization

Posted by Paul Bolcos on May 14, 2021 1:56:10 PM

Previously we posted a blog about optimization of a clap skate using Tosca. I wanted to revisit the topic, by comparing the parametric optimization in Isight and non-parametric optimization in Tosca.

In that blog clap skates were used, but since the weather has started to warm up, I thought in-line skates would be a better case study, particularly the frame (Figure 1). Both software are powerful and complex, so I will try to keep things simple and showcase the basics. More detailed information for the optimization in Isight can be found here and in Tosca here.

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Topics: Abaqus, isight, Topology Optimization, tosca, parameter based optimization, SIMULIA Tosca, Tips, Tricks & Approaches, inline skates

Is my FEA model good enough? – Tales from academia

Posted by Paul Bolcos on Apr 6, 2021 8:36:53 AM

In this blog I wanted to explore the age-old question facing most FEA analysts: Is my model good enough? with examples from my PhD work in knee joint biomechanics.

To create an FE model and run it in a reasonable amount of time, several assumptions and simplifications are needed. One of the aims of one of the knee joint FE models I developed previously was to rapidly identify locations at risk of OA in a patient-specific manner. To achieve the rapid part we used simplified materials models for the main tissues in the knee joint, based on previous literature studies:

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Topics: Tips, Tricks & Approaches, Accuracy FEA model, knee, femoral, tibial cartilage, collagen network damage

Calculating Rolling Resistance with a Parametrical Equation

Posted by Dolf Broekaart on Feb 24, 2021 9:53:44 AM

In this blog we have given the honour to Per Landeback as a special guest writer for our blog. Per has written this great blog about a parametrical Equation to calculate Rolling Resistance of a car tire.

BIO - Per Landeback

Retired test and simulation engineer with vast experience of various vehicles as car, bus, truck and train. Studied at Chalmers University of Technology and performed Master Thesis at a Volvo Aero military engine. Held previous positions as employee/consultant at SAAB, Volvo Truck, Volvo Bus, Bombardier, Scania Truck and NEVS (National Electric Vehicle Sweden). Technical aeras within Comfort, Handling, Braking, Steering, Suspension, Engine mountings, Tires and General component calculation/simulation

"Thank you for the invitation to write about tire rolling resistance and especially about my developed Parametrical Rolling Resistance Equation. This is considered as a first publication and it very likely a paper will be a published. Therefore, general Copywrite rules apply."

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Topics: Tips, Tricks & Approaches, Rolling resistance, car tire, road resistance

Free fortran compiler on Windows for Abaqus material modeling

Posted by Christine Obbink-Huizer on Feb 19, 2021 3:55:21 PM

Abaqus has many built-in options but sometimes these do not suffice. You may want to include a material model that is not implemented, have a complex type of loading that is not available by default or even define your own element. Abaqus' user subroutine capabilities allow you to do this. User subroutines are written in Fortran and in order to use them, you need a Fortran compiler. In this blog I'll show how to install a freely available fortran compiler and link it to Abaqus. Thanks to Oliver Lundqvist working for Sweco in Finland for making me aware of this option, and to oaeres on who provided this solution (especially the last workaround).

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Topics: Abaqus, Tips, Tricks & Approaches, compiler, material modeling, fortran, user-subroutines

Modeling extreme deformations and soil structure interaction for deep sea applications with Abaqus

Posted by Nikolaos Mavrodontis on Feb 8, 2021 9:55:11 AM



In this blog post, we will be looking into a different discretization method, available in Abaqus Explicit. This discretization method can prove to be really useful, in applications where gross distortions or large spatial displacements are expected to occur. A category of applications that can benefit from such a technology, are installations/decommissions of deep sea components, interacting with the seabed.

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Topics: CEL, SPH, shell layer, Soil Structure Interaction, Tips, Tricks & Approaches, Explicit

Abaqus 2021 - What's new?

Posted by Nikolaos Mavrodontis on Dec 7, 2020 4:01:02 PM

Abaqus 2021 is out. In this blog post, we will be showing some of the enhancements, that we found interesting. Additionally most major enhancements will be highlighted, for this new Abaqus release. For a more in depth explanation of the new enhancements, you can take a look in the release notes, provided here.

The discussed enhancements, are included in versions up to Abaqus 2021 FD03(FP.CFA.2042), which has been released. More  enhancements are scheduled for later releases of Abaqus 2021x.

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Topics: whats new, Tips, Tricks & Approaches, Abaqus 2021

Simulating railway track hot rolling in Abaqus

Posted by Christine Obbink-Huizer on Nov 23, 2020 10:47:20 AM

In the hot rolling process, metal is heated and passed through one or more sets of rollers, to give it the desired cross-section for example. This process is used for the fabrication on railway tracks (Figure 1).

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Topics: Abaqus, Tips, Tricks & Approaches, roll forming process

Simulating a rubber fibre reinforced air spring using Abaqus

Posted by Christine Obbink-Huizer on Oct 15, 2020 9:45:00 AM

In this blog, we’ll take a look at an air spring (Figure 1). This device is used for vibration isolation as well as suspension, for example in heavy weight vehicle applications.

Figure 1: Example of an air spring.

The example shown here consists of a convoluted bellows (two convolutions), with steel plates on each end. In practice, one to three convolutions are used. The bellows is made of rubber that is reinforced with fibres. A steel girdle hoop helps to keep it in shape when it is filled with compressed air.

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Topics: Rubber, Abaqus, Tips, Tricks & Approaches, fibre-reinforced rubber, airspring

About our FEA Blog:

Simuleon blog topics related to Finite Element Analysis like; Structural Analysis and CFD analysis performed with SIMULIA Abaqus FEA, XFlow CFD, Isight Simulation Automation, Tosca Topology Optimization and Fe-Safe accurate Fatigue.

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