concreteproperties.results.MomentCurvatureResults#

class MomentCurvatureResults(theta: float, kappa: ~typing.List[float] = <factory>, moment: ~typing.List[float] = <factory>, _n_i: float = 0, _m_i: float = 0, _failure: bool = False)[source]#

Bases: object

Class for storing moment curvature results.

Parameters

theta (float) – Angle (in radians) the neutral axis makes with the horizontal axis (\(-\pi \leq \theta \leq \pi\))

Variables

  • kappa (List[float]) – List of curvatures

  • moment (List[float]) – List of bending moments

  • failure_geometry (sectionproperties.pre.geometry.Geometry) – Geometry object of the region of the cross-section that failed, ending the moment curvature analysis

Methods

get_curvature

Given a moment, uses the moment-curvature results to interpolate a curvature.

plot_failure_geometry

Plots the geometry that fails in the moment curvature analysis.

plot_multiple_results

Plots multiple moment curvature results.

plot_results

Plots the moment curvature results.

Attributes

theta

kappa

moment

failure_geometry

plot_results(m_scale: Optional[float] = 1e-06, **kwargs) → matplotlib.axes.Axes[source]#

Plots the moment curvature results.

Parameters

  • m_scale (Optional[float]) – Scaling factor to apply to bending moment

  • kwargs – Passed to plotting_context()

Returns

Matplotlib axes object

Return type

matplotlib.axes.Axes

static plot_multiple_results(moment_curvature_results: List[MomentCurvatureResults], labels: List[str], m_scale: Optional[float] = 1e-06, **kwargs) → matplotlib.axes.Axes[source]#

Plots multiple moment curvature results.

Parameters

  • moment_curvature_results – List of moment curvature results objects

  • labels (List[str]) – List of labels for each moment curvature diagram

  • m_scale (Optional[float]) – Scaling factor to apply to bending moment

  • kwargs – Passed to plotting_context()

Returns

Matplotlib axes object

Return type

matplotlib.axes.Axes

plot_failure_geometry(title: Optional[str] = 'Failure Geometry', **kwargs) → matplotlib.axes.Axes[source]#

Plots the geometry that fails in the moment curvature analysis.

Parameters

  • title (Optional[str]) – Plot title

  • kwargs – Passed to plot_geometry()

Returns

Matplotlib axes object

Return type

matplotlib.axes.Axes

get_curvature(moment: float) → float[source]#

Given a moment, uses the moment-curvature results to interpolate a curvature.

Raises a ValueError if supplied moment is outside bounds of moment-curvature results.

Parameters

moment (float) – Bending moment at which to obtain curvature

Returns

Curvature

Return type

float