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The models can be run with FEBio directly from the FEBio Studio interface, or exported to the xml-formatted FEBio input file.

Users can then setup boundary, loading, and contact conditions, and define material and analysis parameters. It allows users to import geometry and meshes from various file formats, including some CAD formats (BREP, STEP) and offers some tet mesh generation capabilities.

To assist with setting up FEBio models and analyzing the results, the FEBio Studio software was developed.ДЇEBio Studio is the newest development platform for creating, running, and analyzing FEBio models.

Prescribed and initial temperature boundary condition, heat flux and convective heat flux, heat source.ДЇEBio is a command-line application that only implements the solver algorithms.

Steady-state and transient linear heat transfer analysis.

Viscous fluid flow (Newtonian, Carreau, Carreau-Yasuda, Powell-Eyring, Cross).

Steady-state and transient fluid dynamic analysis.

Specialized shell formulations for biphasic/multiphasic analyses.

Chemical reactions between solutes/solid-bound molecules.

Solid-bound molecules that deform with the solid phase.

Special contact formulations that take solvent and/or solute flow across contact interface into account.

Steady-state or transient analysis conditions.

Biphasic, biphasic-solute, triphasic (two solutes), and multiphasic materials with multiple solutes.

Linear and quadratic shell elements that can be free, or placed on top or between solid elements.

Solid 3D linear and quadratic elements (tetrahedral, hexahedral, pentahedral).

Multiple tied and sliding contact formulations with or without friction.

Prescribed displacements, surface loads (e.g.

Rigid body mechanics and rigid-deformable coupling.

Hyperelastic materials (isotropic, transversely-isotropic, anisotropic), visco-hyperelastic materials, damage models, fiber materials.

Non-linear (quasi-) static, non-linear dynamic, energy conserving time integration schemes.

A more complete list can be found in the FEBio User's manuals. the FEBioChem plugin, which implements a reaction-diffusion solver for solving chemical reactions in mixtures ).ДЄ brief overview of the available features (as of version 2.8) follows. Using this plugin framework users can develop new constitutive models, boundary conditions, body loads, nonlinear constraints, and even new finite element solvers (see e.g.

The source code is available on GitHub ( )ДЇEBio supports a plugin framework that allows users to easily extend and customize the set of features for their specific needs.

Older versions are available under a custom license and are not considered Open-source software because they are only free for non-commercial use. The source code for FEBio is publicly available and, as of version 2.9, distributed under the MIT License. A more detailed overview of FEBio's features follows below. FEBio supports both quasi-static and dynamic analyses. Users can solve problems in solid mechanics, contact analysis, porous media problems, fluid mechanics, and as of version 2.8, fluid-solid interaction (FSI) problems as well. It was developed in collaboration with research groups from the University of Utah (MRL, SCI) and Columbia University (MBL).ДЇEBio offers modeling scenarios, constitutive models, and boundary conditions that are relevant to numerous research areas and specializes in the analysis of 3D multiphysics models that can undergo large deformations. FEBio (Finite Elements for Biomechanics) is a software package for finite element analysis and was specifically designed for applications in biomechanics and bioengineering.

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