SA-FEA can't run in this browser

SA-FEA needs a browser with WebGL 2 and multithreaded WebAssembly, served with cross-origin isolation headers. The full 64-bit engine runs on Chrome or Edge 133+ and Firefox 134+; Safari (iPhone and iPad included) runs a 32-bit pooled compatibility engine (up to 6 cores).

Diagnostic code:

SA-FEA: Finite Element Analysis in Your Browser

SA-FEA finite element analysis (FEA) application online. Import, mesh, and solve locally with WebAssembly. No install.

The cantilever beam shown above is the first of many samples that are free to run.

SA-FEA Features

Linear static, modal, and nonlinear analysis
Large deformation, elastoplastic hardening, and hyperelastic materials
Contact mechanics including rigid tools, elastic body contact, bonded constraint and friction
TET10 and TET15 quadratic tetrahedral elements
Local refinement zones, per-face sizing, and minimum element count through thin walls
STEP, IGES, and STL import
Extensive mesh quality reporting, reaction force verification and energy conservation verification
Geometry, mesh, and results are never uploaded to our servers
No installation required
Runs on all modern browsers
Developed by Standards Applied LLC, the creators of popular online applications like Curvefit Pro and Curve Fitting Online.
All applications are backed by robust C++ compiled into WebAssembly.
$495 per month, or $332.92 per month billed yearly at $3,995

Benchmark results

Meshing

Mesher	Tetrahedra	Outside the limits	Smallest dihedral angle	Skin triangles outside	Time
SA-FEA	13,346	0	18.0°	124 (2.6%)	0.9 s
Frontal-Delaunay, best of eight settings	46,698	2,097 (4.5%)	2.2°	2,542 (11.8%)	2.3 s
Advancing front, crease angle 60° (its default aborts)	5,251	138 (2.6%)	3.8°	261 (6.9%)	1.8 s
Constrained Delaunay refinement	137,305	3,223 (2.3%)	1.3°	8,931 (22.2%)	2.9 s
Envelope-based robust tetrahedralization	3,236	931 (28.8%)	8.7°	1,719 (69.1%)	15.3 s
Delaunay refinement, surface then volume	21,533	2,360 (11.0%)	7.0°	4,191 (29.4%)	4.3 s

Accuracy

The Verification & Benchmarks page lists the cases the solver is checked against, each with its target and reading: NAFEMS and MacNeal-Harder benchmarks, NASA demonstration problems, closed forms for statics, modes, large deflection, plasticity, and contact, patch tests, mesh quality, and CAD import against an independent kernel.

Quadratic tetrahedral elements

A TET10 tetrahedral finite element: four corner nodes and six mid-side nodes highlighted — The quadratic TET10 element

A TET10 element has four corner nodes and six mid-side nodes: displacement varies quadratically inside each element, stress varies linearly, and curved faces follow the surface. A TET15 adds a node on each face and one at the centre, which improves the near-incompressible response and the contact pressure at the same mesh size.

Nonlinear FEA: large deflection, plasticity, contact

Von Mises stress on a deformed plate from a nonlinear FEA solve run in the browser — A clamped plate pushed past its thickness, von Mises stress on the deformed shape.

Disclaimer

Recommendations on application design and material selection are based on available technical data and are offered as suggestions only. Each user should make their own tests to determine the suitability for their own particular use. Standards Applied LLC offers no express or implied warranties concerning the form, fit, or function of a product in any application.

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