TEX

TEX is an automatic all-hexahedral meshing engine for the 3D computer simulation of non-linear physics such as plasticity, complex constitutive laws, fatigue, near failure, CFD, etc. Tex is particularly useful for the nonlinear analysis of components featuring extreme length scale variations such as light aerospace structures, light alloy castings, tires, electronic components, mobile devices, MEMS, fluidic devices, as well as applications featuring locally high aspect-ratios such as additive manufacturing infills, welding, auxetic materials and automated shape optimization. Tex meshes are compatible with all CAD, FEM, CFD and PLM software.

TEX uses Mid-object Extraction and Extrusion at Saddle points (MEES) ( 1 ) to decompose a complex geometry into compatible extruded mesh blocks in such a way that mesh resolution spanwise and across the object can be adjusted independently. Such Orthogonal Resolution Control (ORC) had only been possible with 2.5 D mesh generators such as those used in polymer flow or environmental hydraulics.

Tex builds good quality all-hexahedral meshes that typically have 10 to 100 times fewer elements than equivalent tetrahedral or grid-based hexahedral lego or octree style meshes. Tex meshes result in faster convergence to a more accurate solution due to their quality and all-hex nature.

Tex is an SIW product. For lease information please complete the Contact Form in the About section.

Features & benefits of tex

  • Compatibility and easy scripting and integration into CAD/CAE/CFD/PLM systems.

  • Available as an X64 dll or exe. Unix-style: tex -i example.ext < -keyword word> <..> . . .

  • Runs with as few as one and with as many as 50 API arguments.

  • Available as a node-locked yearly lease.

  • Builds all-hex meshes with an option for creating mixed hex-prism-tet meshes.

  • First fully 3D automatic grid generator with Orthogonal Resolution Control (OCR) which allows for the independent control of mesh density through and along thin regions. This results in meshes with as few as one element across the material.

  • Reads a closed triangular mesh of shell elements, outputs 8-noded hex solids in a variety of formats.

  • Ideal for non-linear (plasticity, failure, CFD, etc.) analyses

  • Builds meshes with orders of magnitude fewer elements than tet with faster convergence and more accurate results.

  • Handles 3D objects with very thin regions and extreme length scale variations.

  • Very easy to learn and use. Examples shown are created with only one parameter: name of input file.

  • input: Nastran (default), stl, patran, ideas, ansys, abaqus, gridpro, obj, and more upon request.

  • output: Nastran (default), patran, ideas, ansys, vrml, marc, abaqus, gridpro, and more upon request.

(1) “Automatic 2D Abstraction and Hexahedral Meshing by Sorting a Delaunay Mesh”, Reza Taghavi, Proceedings of the 28th International Meshing Roundtable, Sandia National Laboratories, Buffalo, NY, USA. October 2019