In this blog post, we will be showcasing a fatigue assessment of a bicycle frame. This fatigue assessment will be against certain cyclic loading scenarios. Cyclic loading scenarios, typical for bicycle manufacturers, can include, pedaling forces, horizontal forces acting on the front fork and vertical load acting on the seat post.

Problem solving and simulation within the Oil and Gas industry use approaches that are generally familiar to other more mainstream mechanical engineers, but often require the use of specific, often codified, processes and tools.

This webinar will look at some of the tools that are available within Abaqus that allow an in-depth insight into the behaviour of systems in ways which conform to accepted standards in Oil & Gas industry. These include:

On many occasions, particularly when our model size is large or when automatically generated Field/History outputs are used by default, the resulting output database of an analysis can be of significant size. Typically (at least for quasi-statics, statics), the user is mainly interested in retaining the first and/or last frames of generated output, as the main focus is the final deformed configuration, when a loading has been fully ramped up (100% loading). Additionally, when automatically generated output requests are used, predefined default output variables are written in the results database, whereas the user might only have interest in von Mises stresses and resulting displacements in the model.

In this blog post, we will be showcasing the OEBT plug-in, that allows the user to select the specific results that they would like to keep, and populate them in a new results' database. 

In short:

• Mesh-independent fasteners couple layers of material to each other, simulating the effect of e.g. spot welds.
• They don’t require the coupled region to be separated from other regions by a partition (mesh-independence), making them easy to define.
• Instead their position is defined by attachment points, reference points or nodes.
• It is possible to create patterns of attachments points, to easily define the location of multiple fasteners.
• Fastener are defined from the interaction module, via “special”, “fasteners”, “create” or the “create fasteners” icon.
• Rigid MPC fasteners are possible. The behavior of the fastener can also be defined via a connector section to allow more complex behavior.

In short

• Abaqus allows you to continue a previous analysis with a new analysis.
• Restarting is only possible from increments for which restart files are available for the previous analysis.
• These are requested before the previous analysis is run, from the step module, via “output” “restart requests”.
• In the model attributes of the new analysis you can refer to the step of the previous job that should be used as starting point.
• It is possible to continue an interrupted job as it was originally defined, or to add additional steps.
• Because additional steps are a continuation of what was done before, it is not possible to include new geometry etc.
• Select ‘restart’ as job type when running the restart analysis
• The .odb of the restart analysis will only contain data of the newly simulated steps, so the output is split over two odb's.

Simuleon is organising another unique hands-on workshop called "Introduction to XFlow CFD".

Our classroom style workshop will be held in English language at our office location in 's-Hertogenbosch, the Netherlands. This is the ideal way to understand and try-out, what advanced CFD simulation, with SIMULIA XFlow CFD can offer.

In this blog post, we will be showcasing some of the plug-ins, available for Abaqus.

A plug-in essentially is a small piece of software installed into another application (Abaqus in this case) in order to extend the application’s capabilities.

 Typically, plug-ins are categorized either as kernel plug-ins or as GUI plug-ins. The first ones consist of functions written using the Abaqus Scripting Interface. GUI plug-ins contain commands that create Graphical User Interfaces.

Offshore and subsea structures have been constructed and commissioned for many decades now, resulting in quite innovative and mature technologies.

These structure types are subjected to loads of different nature. Therefore there is the need for developing methods, that allow for a structural assessment under serviceability loads, in a quick but also accurate way.

Particularly, for subsea structures focused on oil extraction from reservoirs, lying under the seabed, interaction with the surrounding soil becomes of critical importance.

In this blog post, we will be investigating a drilling wellhead under external load action while also incorporating the behavior of the surrounding fully saturated soil from the seabed, in terms of nonlinear springs.

There are different options to adapt the mesh in Abaqus: ALE adaptive meshing, adaptive remeshing and mesh-to-mesh solution mapping. It can be difficult to keep them apart, so in this blog, I’ll give an overview of what they are and what their purpose is. I’ll start with a summary table and then go into more details.

Simuleon will give another unique workshop, called "Introduction to XFlow CFD".

Our classroom style workshop will be held in English language at our office location in 's-Hertogenbosch, the Netherlands. This is the ideal way to understand and try-out, what advanced CFD simulation, with SIMULIA XFlow CFD can offer.