Models
A model is a ready-made geometry you can build your simulation on instead of starting from scratch. Each model comes with sensible default settings, so it is the fastest way to run a first simulation or to compare against published results.
When you first open PeriHub the built-in models are shown automatically. You can pick one and start editing it, or upload your own model — a saved configuration you exported earlier as a JSON file. See First Simulation for the full walkthrough.
Built-in models
PeriHub ships with a set of standard test specimens used throughout fracture mechanics research. Each one is a small, well-understood experiment that is handy for learning the software or for checking your setup. They show up in the model list when you open PeriHub.
| Model | What it is |
|---|---|
| Compact Tension | A plate with a notch, pulled at two points. A classic crack study. |
| Double Cantilever Beam | Two beams popened apart, used to study crack growth. |
| Dogbone | A tensile specimen (wide narrow “dogbone” shape) pulled apart. |
| End Notched Flexure | A beam with a pre-cut notch, bent until it breaks. |
| Kalthoff–Winkler | A plate struck by a projectile, used to study fast fracture. |
| Plate with a Hole | A plate with a hole, used to study stress around openings. |
The default settings for each are good starting points, so try one and adjust from there.
Your own models
You are not limited to the built-in models. If you write a model in Python, you can drop it into a folder and PeriHub will load it into the model list. See Own Models for how to write and add one.