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Abaqus FEA (formerly ABAQUS) is a suite of software applications for finite element analysis and computer-aided engineering. The software suite provides a complete and flexible solution to deliver accurate, robust, high-performance solutions for challenging nonlinear problems, large-scale linear dynamics applications, and routine design simulations. Abaqus FEA is used in the automotive, aerospace, and industrial products industries. The product is popular with academic and research institutions due to the wide material modeling capability, such as metal and elastomeric (rubberlike) material capabilities, and the program's ability to be customized using programmable features, scripting and GUI customization features. Users can implement their own nonlinear material models via user material subroutines, such as UMAT and VUMAT.

The Abaqus product suite consists of four core software products:

  1. Abaqus/CAE, a Computer-Aided Engineering software application used for designing, modeling and visualizing machinery
  2. Abaqus/CFD, a Computational Fluid Dynamics software application which is new to Abaqus 6.10
  3. Abaqus/Explicit, a finite element analysis software application that employs explicit integration scheme to solve highly nonlinear transient dynamic and quasi-static analyses
  4. Abaqus/Standard, a general-purpose solver using a traditional implicit integration scheme to solve finite element analyses

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Example of the SWEEP Meshing Method on a Cylinder
  • ABAQUS - Mesh on a Cylinder and Mesh Convergence Tutorial
Note: The meshing technique shown in this tutorial is better than the mesh automatically generated and should provide good uniform results for the stresses on the outside of the cylinder. However, the elements at the center of the cylinder will still be distorted and could provide bad data for the stresses at that location. A better method for providing a uniform mesh over the entire geometry of the cylinder is the SWEEP method, show in the image to the right. The SWEEP method, is pretty simple, instead of having a circular section in the middle of the cylinder, make it a square. Then, cut the cylinder into quarters length wise (similar to what was shown in the video) such that the quarter cuts go through the corners of the middle square. If the size of the mesh is seeded appropriately, the results are a perfectly uniform mesh in the center and a nice uniform mesh outside of that with minimal distortion at the corners of the squares.

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