DiSMech-Newton
Discrete elastic rods for NVIDIA Newton.
ADMMDiSMechSolver: implicit DER solved with ADMM, inspired by Daviet (2023), with rod-rod, rod-shape and rod-ground contact and Coulomb friction.DiSMechSolver: implicit DER solved with Newton-Raphson.
Examples
| Cantilever | Overhand Knot | Plectoneme |
|---|---|---|
 |
 |
 |
DER (top) and Newton's VBD (bottom) against Euler-Bernoulli.uv run examples/cantilever.py |
A knot pulled tight with friction Audoly et al. (2007).uv run examples/overhand_knot.py |
A twisted rod coils into a plectoneme Clauvelin et al. (2009).uv run examples/plectoneme.py |
| Flagella Bundling | System Identification | Two-way Coupled Solvers |
 |
 |
 |
Flagella bundle in a viscous fluid Tong et al. (2022).uv run examples/flagella.py --flagella 10 |
L-BFGS fits stiffness, density and damping to video and a gripper force sensor by differentiating through the solver.uv run examples/fit_buckling.py |
A MuJoCo Franka carries a rod with two-way coupling (experimental).uv run --extra mujoco examples/experimental/franka_rod.py |
Install
Requires Python 3.10+ and uv. Runs on an NVIDIA GPU with CUDA 13 or on the CPU.
git clone https://github.com/ryanchaiyakul/dismech-newton.git
cd dismech-newton
uv sync --extra gpu --extra viewer
uv run examples/cantilever.py
1 maintainer
Metadata
1 maintainer
Release files for dismech-newton 0.1.0.post2
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