MechanicsDynaWriter

class ansys.health.heart.writer.mechanics_writer.MechanicsDynaWriter(model: ansys.health.heart.models.HeartModel, settings: ansys.health.heart.settings.settings.SimulationSettings | None = None)

Bases: ansys.health.heart.writer.base_writer.BaseDynaWriter

Class for preparing the input for a mechanics LS-DYNA simulation.

Overview

Methods

update	Update the keyword database.
write_robin_bc	Create Robin boundary condition on a given surface.

Attributes

kw_database	Collection of keyword decks relevant for mechanics.
set_flow_area	Flag indicating if the flow area is set for control volume.

Import detail

from ansys.health.heart.writer.mechanics_writer import MechanicsDynaWriter

Attribute detail

MechanicsDynaWriter.kw_database

Collection of keyword decks relevant for mechanics.

MechanicsDynaWriter.set_flow_area: bool = True

Flag indicating if the flow area is set for control volume.

Method detail

MechanicsDynaWriter.update(dynain_name: str | None = None, robin_bcs: list[Callable] = None) → None

Update the keyword database.

Parameters:

dynain_namestr, default: None

Dynain file from stress-free configuration computation.

robin_bcslist[Callable], default: None

List of lambda functions to apply Robin-type coundary conditions.

Notes

You do not need to write mesh files if a Dynain file is given.

MechanicsDynaWriter.write_robin_bc(robin_type: Literal['spring', 'damper'], constant: float, surface: pyvista.PolyData, normal: numpy.ndarray | None = None) → list

Create Robin boundary condition on a given surface.

Parameters:

robin_typeLiteral[“spring”, “damper”]

Create spring or damper.

constantfloat

Stiffness (MPa/mm) or viscosity (MPa/mm*ms).

surfacepv.PolyData

Surface to apply boundary condition to. It must contain point data _global-point-ids. It is scaled by the nodal area and point data scale factor if it exists.

normalnp.ndarray, default: None

Normal values. If no normal values are given, nodal normals are used.

Returns:

list

List of the DYNA input deck.