Weiss’s lab despite the fact that it had many valuable applications. Consequently, the algorithm was not widely used outside Dr. Unfortunately, NIKE3D was not free and, as a government-owned program, the dissemination of the additions was complicated. This algorithm was originally implemented in NIKE3D, a nonlinear implicit finite element code for solving problems in solid mechanics, developed by the Lawrence Livermore National Laboratories (LLNL). The result of this approach is a deformation that is physically realistic and can be used to calculate the strains and, assuming the constitutive properties of the materials are known, the stresses as well. This method uses a finite element method for solving the image registration problem. Jeffrey Weiss was involved in the development of a deformable image registration algorithm termed Hyperelastic Warping. A strong emphasis would also be placed on thorough documentation, support, and outreach to the community, which would make it much easier than before for researchers to develop new ideas and share them with others. The source code would be freely available and designed such that it would be easy for researchers to implement new algorithms (e.g. FEBio was developed to fill this emerging need and it would accomplish this by focusing on features that are relevant in the field. Yet, at the time of FEBio’s initial development (ca 2005), no freely available open-source finite element software existed that specifically targeted the biomechanics and biophysics communities. Although it was initially applied to problems in mechanics, it has since its inception in the 1950s been used in virtually every field of engineering, including biomechanics and biophysics. The number of downloads over time tracks closely with the number of registered users, suggesting that our users continue to show sustained interest with every new release.The finite element (FE) method has proven to be one the most versatile numerical methods for solving computational problems in physics. The installation packages for FEBio have been downloaded over 60,000 times. Quick LinksĪs of August 2020, the FEBio community consists of over 12,000 registered users. The development, distribution, and support of FEBio and FEBio Studio is a joint effort between the Jeff Weiss’ laboratory at the University of Utah and Gerard Ateshian’s laboratory at Columbia University. In addition, FEBio Studio offers access to an online model repository, where users can quickly find example problems, tutorial models, as well curated models used in peer-reviewed research publications. FEBio Studio is the easiest way for creating FEBio input files, and for visualizing and analyzing the FEBio output files. Since FEBio is a command-line code, it uses file-based communication. It offers a graphical user interface for interacting with the FEBio software. As a true multiphysics code, it can also solve coupled physics problems, including fluid-solid interactions.įEBio Studio is the main software tool for developing, running, and analyzing FEBio models. biphasic or multiphasic materials), fluid mechanics, reaction-diffusion, and heat transfer. Aside from structural mechanics, it can also solve problems in mixture mechanics (i.e. FEBio is a software tool for nonlinear finite element analysis in biomechanics and biophysics and is specifically focused on solving nonlinear large deformation problems in biomechanics and biophysics.
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