We found that material properties (modulus) affected growth in the element-based approach, with growth completely restricted for high modulus values relative to the growth stimulus, and no restriction for low modulus values. We used a previously reported node-based approach implemented via thermal expansion and an element-based approach implemented via osmotic swelling, and we derived a mathematical relationship to relate the growth resulting from these approaches. This study directly compared node-based and element-based approaches to understand the isolated impact of implementation method on growth predictions by simulating growth of a bone rudiment geometry, and determined what conditions produce similar results between the approaches. Previous work has simulated growth using node-based or element-based approaches, and this implementation choice may influence predicted growth, irrespective of the applied growth model. Users can also record and save animations directly to a movie format (AVI, MPEG).Finite element analysis is a useful tool to model growth of biological tissues and predict how growth can be impacted by stimuli. Screenshots can be taken directly in PostView and saved in various image formats (BMP, TIFF). Most of the graph tools also allow the graph data to be saved on the clipboard so that it can be pasted into other programs (e.g. Image data can be visualized either via a volume rendering of the data or via a slice-based visualization, where only individual slices of the image data are shown.ĭata can be exported from PostView in many ways and in several formats (TXT, VTK, LSDYNA Keyword, etc.). Users can also import volumetric (3D) image data alongside with their finite element results. Additional data fields can also be imported from external data files and applied to the loaded model. For instance, data fields can be combined algebraically, or gradients can be calculated from scalar fields, and more. New data fields can also be defined by filtering existing data fields. For instance, the user can evaluate various strain measures from the displacement field. The time steps from the FEBio output (.plt file) can be viewed as an animation in PostViewĪdditional data fields can be generated from within PostView in a variety of ways. The Integration tool can be used to evaluate volume and surface integrals of the model data. The Summary tool provides an overview of the averaged data of the entire model. Values at nodes and elements can be interrogated directly and all data can be visualized as a time history using the TrackView tool. PostView also offers several tools for inspecting data quantitatively. Additional visual realism can be added using transparency and shadows. The contents and the layout of the rendering as well as the color schemes, and all options for rendering facets, lines, and points, can be customized fully by the user. The rendering of the model can be augmented by adding additional plots, such as surface plots, isosurface plots, vector plots, plane cuts and several other. PostView shows a graphical rendering of the model and, in the case the model has time-dependent data, can show an animation of the model. It also offers several ways to add additional data to an already loaded model. LSDYNA Keyword, LSDYNA binary database, VTK). It can import the FEBio extendible plot file format (XPLT), as well as several other data formats (e.g. Postview is a finite element post-processor that is designed to visualize and analyze results from an FEBio analysis.
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