Femap V11.1.1 has just been released. While it is considered a ‘minor release’, there have been some significant enhancements that that continue to keep Femap with NX Nastran at the forefront of both productive ease-of-use as well as serious engineering depth for expert analysts.
In this article we look at what’s new in this release.
We already have clients who are using the File | Merge capability released in V11.1. Version 11.1.1. adds geometry to File | Merge. The value of Model Merge is relevant to bigger projects where two or more people in a team are tasked with simultaneously building one FEA model. Although the Femap Neutral File has always allowed merging of models from multiple sources, the new capability provides more sophisticated options for adding or replacing entities from the multiple models, with better resolution of the choices related to classes of entities such as nodes, elements, materials, properties, load & constraint sets, and now geometry. Given the strong association between geometry and the FEA model, the addition of geometry into File | Merge provides more scope for FEA model building to be divided up amongst multiple users.
Above: File | Merge (now includes geometry) is the best way to combine modelling done in parallel by a team.
Femap enhances its ability to be fully independent of a CAD system (if needed) by continuing to add more geometry construction and editing options in every release. Geometry | Solid | Fill Hole allows the user to quickly create “complementary” solids which fill existing holes / hollows / cavities. This can be used eg. to create solid bolts for pre-load, and/or fluid domain geometry for CFD.
Above: Geometry | Solid | Fill Hole: Creates a new (additional) solid which fills a cavity in an existing solid. Useful for flow domains, heat transfer domains and (detailed) bolt modelling.
This capability makes it easier to use force-based global-local sub-modelling. One of our recent webinars (and tech tip) demonstrated the use of enforced displacement loads-from-results to perform global-local modelling. In some situations, using nodal forces at the sub-model broadens the sub-model design options (though analyst judgement is still required to ensure sub-model assumptions are valid). The new capability allows the global and local models to be open in a single Femap session, and use results from multiple load sets in the global model to create all the corresponding load sets in the local model – in one operation. For additional QA, Femap will perform an equilibrium check to confirm that all the forces and moments on the sub-model sum to zero.
Right: Loads from Freebody allows multi-set global-local sub-modelling to be created and checked with ease.
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