| |
| """Render nodal displacement magnitude and shell von Mises stress by state.""" |
|
|
| from __future__ import annotations |
|
|
| import argparse |
| from pathlib import Path |
|
|
| import matplotlib.pyplot as plt |
| import numpy as np |
| import torch |
|
|
| from load_case import canonical_geometry, load_case, load_mesh |
|
|
|
|
| def main() -> None: |
| parser = argparse.ArgumentParser(description=__doc__) |
| parser.add_argument("--dataset-root", type=Path, default=Path(".")) |
| parser.add_argument("--geometry", required=True) |
| parser.add_argument("--case", required=True) |
| parser.add_argument("--state", type=int, default=0, choices=range(17)) |
| parser.add_argument("--output", type=Path) |
| args = parser.parse_args() |
|
|
| geometry = canonical_geometry(args.geometry) |
| data = load_case(args.dataset_root, geometry, args.case) |
| mesh = load_mesh(args.dataset_root, geometry) |
| state = args.state |
|
|
| pos = mesh["node_pos"] |
| displacement = data["disp"][:, state].numpy() |
| deformed = pos + displacement |
| magnitude = torch.linalg.vector_norm(data["disp"][:, state], dim=-1).numpy() |
| connectivity = mesh["element_node_index"] |
| centers = deformed[connectivity].mean(axis=1) |
| stress = data["effective_stress"][:, state].numpy() |
|
|
| figure, axes = plt.subplots(1, 2, figsize=(14, 5), constrained_layout=True) |
| first = axes[0].scatter( |
| deformed[:, 0], deformed[:, 1], c=magnitude, s=1.2, cmap="viridis" |
| ) |
| axes[0].set_title(f"Nodal displacement magnitude, state {state}") |
| figure.colorbar(first, ax=axes[0]) |
| second = axes[1].scatter( |
| centers[:, 0], centers[:, 1], c=stress, s=1.2, cmap="turbo" |
| ) |
| axes[1].set_title(f"Max-IP von Mises stress, state {state}") |
| figure.colorbar(second, ax=axes[1]) |
| for axis in axes: |
| axis.set_aspect("equal", adjustable="box") |
| axis.set_xlabel("x (unit pending confirmation)") |
| axis.set_ylabel("y (unit pending confirmation)") |
| figure.suptitle(f"{geometry} / {data['case']} / t={float(data['time'][state]):.6g}") |
|
|
| if args.output: |
| args.output.parent.mkdir(parents=True, exist_ok=True) |
| figure.savefig(args.output, dpi=200) |
| print(args.output) |
| else: |
| plt.show() |
|
|
|
|
| if __name__ == "__main__": |
| main() |
|
|
