otko/tests/integration/test_ex2b_canti2d_inelastic_section.py
smillmorel 61b850bf46
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style: resolve the remaining ruff findings
Auto-fixes (UP037, UP038, F401, I001, SIM105, RUF100) plus hand-fixes:
drop the now-unused `Union` imports, annotate mutable class attributes
with ClassVar, raise ValidationError instead of blind Exception in the
zero-length test, delete two dead locals, and bind the per-iteration
grid-builder closures to their loop variables (B023).
2026-09-16 13:20:36 -04:00

75 lines
2.4 KiB
Python

"""Integration tests for OpenSees Example 2b nonlinear cantilever."""
from __future__ import annotations
import tempfile
from pathlib import Path
import pytest
pytest.importorskip("openseespy")
from otko.core import PushoverCase, TransientCase
from otko.services import load_project, save_project
from otko.services.opensees_runner import OpenSeesRunner
pytestmark = pytest.mark.slow
def _reload(proj, tmp_path): # type: ignore[no-untyped-def]
path = tmp_path / "ex2b_canti2d_inelastic_section.osmodel"
save_project(proj, path)
reloaded = load_project(path)
reloaded.validate_references()
return reloaded
def test_ex2b_canti2d_pushover_yields_and_softens(tmp_path) -> None: # type: ignore[no-untyped-def]
from examples.ex2b_canti2d_inelastic_section import (
PUSH_STEP,
PUSH_TARGET,
build_ex2b_canti2d_inelastic_section,
)
proj = _reload(build_ex2b_canti2d_inelastic_section(), tmp_path)
push_case = next(c for c in proj.analyses if isinstance(c, PushoverCase))
result = OpenSeesRunner(proj).run(push_case)
expected_pts = int(PUSH_TARGET / PUSH_STEP) + 1
assert len(result.control_disp) == expected_pts
assert result.control_disp[-1] == pytest.approx(PUSH_TARGET, rel=1e-6)
# Nonlinear section should show a reduced post-yield tangent.
early_slope = (result.base_shear[5] - result.base_shear[0]) / (
result.control_disp[5] - result.control_disp[0]
)
late_slope = (result.base_shear[-1] - result.base_shear[-6]) / (
result.control_disp[-1] - result.control_disp[-6]
)
assert early_slope > 5.0 * late_slope
assert max(result.base_shear) > 0.0
def test_ex2b_canti2d_earthquake_runs_and_oscillates(tmp_path) -> None: # type: ignore[no-untyped-def]
from examples.ex2b_canti2d_inelastic_section import (
ANALYSIS_DT,
ANALYSIS_STEPS,
build_ex2b_canti2d_inelastic_section,
)
proj = _reload(build_ex2b_canti2d_inelastic_section(), tmp_path)
eq_case = next(c for c in proj.analyses if isinstance(c, TransientCase))
results_dir = Path(tempfile.mkdtemp(prefix="ex2b_canti2d_eq_"))
result = OpenSeesRunner(proj).run(eq_case, results_dir=results_dir)
time = result.time()
top = result.node_disp_history(2)
ux = top[:, 0]
uy = top[:, 1]
assert len(time) == ANALYSIS_STEPS
assert result.dt == pytest.approx(ANALYSIS_DT)
assert ux.max() > 1e-4
assert ux.min() < -1e-4
assert max(abs(uy)) < 1.0