# -*- coding: utf-8 -*-
# ---------------------------------------------------------------------
#
# _____ _ _ _
# | ____|__| | ___| |_ _____(_)___ ___
# | _| / _` |/ _ \ \ \ /\ / / _ \ / __/ __|
# | |__| (_| | __/ |\ V V / __/ \__ \__ \
# |_____\__,_|\___|_| \_/\_/_\___|_|___/___/
# | \/ | ___ ___| |__ / _|_ __ ___ ___
# | |\/| |/ _ \/ __| '_ \| |_| '__/ _ \/ _ \
# | | | | __/\__ \ | | | _| | | __/ __/
# |_| |_|\___||___/_| |_|_| |_| \___|\___|
#
#
# Unit of Strength of Materials and Structural Analysis
# University of Innsbruck,
#
# Research Group for Computational Mechanics of Materials
# Institute of Structural Engineering, BOKU University, Vienna
#
# 2023 - today
#
# Matthias Neuner | matthias.neuner@boku.ac.at
# Thomas Mader | thomas.mader@bokut.ac.at
#
# This file is part of EdelweissMeshfree.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# The full text of the license can be found in the file LICENSE.md at
# the top level directory of EdelweissMeshfree.
# ---------------------------------------------------------------------
"""Body loads are loads that act on the entire body of the model."""
from abc import abstractmethod
import numpy as np
from edelweissfe.stepactions.base.stepactionbase import StepActionBase
from edelweissfe.timesteppers.timestep import TimeStep
from edelweissmeshfree.sets.cellset import CellSet
[docs]
class MPMBodyLoadBase(StepActionBase):
"""Base class for body loads.
If you want to implement a new body load, you should derive from this class.
"""
@property
@abstractmethod
def cellSet(self) -> CellSet:
"""The cells this load is acting on.
Returns
-------
CellSet
The list of cells.
"""
@property
@abstractmethod
def loadType(self) -> str:
"""Return the type of load (e.g., bodyforce, ... )
Returns
-------
str
The load type.
"""
[docs]
@abstractmethod
def getCurrentLoad(self, timeStep: TimeStep) -> np.ndarray:
"""Return the current magnitude for this body load.
Parameters
----------
timeStep
The current time step.
Returns
-------
np.ndarray
The magnitude.
"""