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LagrangianObjectiveRate.h
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1//* This file is part of the MOOSE framework
2//* https://mooseframework.inl.gov
3//*
4//* All rights reserved, see COPYRIGHT for full restrictions
5//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
6//*
7//* Licensed under LGPL 2.1, please see LICENSE for details
8//* https://www.gnu.org/licenses/lgpl-2.1.html
9
10#pragma once
11
12// Inputs/Outputs hold RankTwoTensor / RankFourTensor by value, so the full definitions are needed.
13#include "RankTwoTensor.h"
14#include "RankFourTensor.h"
15
16class MooseEnum;
17
Objective-stress-rate updates as stateless free functions.
Outputs jaumann(const Inputs &in, bool need_jacobian)
sigma_{n+1} = J(dW)^{-1} (sigma_n + Deltasigma). Jaumann rate.
Outputs greenNaghdi(const Inputs &in, bool need_jacobian)
sigma_{n+1} = J(dO)^{-1} (sigma_n + Deltasigma), with dO built from the polar rotation increment.
Outputs truesdell(const Inputs &in, bool need_jacobian)
sigma_{n+1} = J(dL)^{-1} (sigma_n + Deltasigma). Truesdell rate.
Outputs compute(const MooseEnum &rate, const Inputs &in, bool need_jacobian)
Dispatch to the rate selected by the objective_rate enum (truesdell / jaumann / green_naghdi / rashid...
Outputs rashid(const Inputs &in, bool need_jacobian)
sigma_{n+1} = r_hat (sigma_n + Deltasigma) r_hat^T, r_hat = exp(Deltaw).
Per-qp quantities a rate reads.
RankFourTensor d_rotation_d_F
Green-Naghdi only: dR/dF.
RankFourTensor d_dL_d_F
d(dL)/dF and d(dW)/dF from the strain calculator.
RankTwoTensor dL
Spatial velocity gradient increment dL and its vorticity (skew) part dW.
RankTwoTensor rotation
Green-Naghdi only: polar-decomposition rotation R (n+1 and n), the inverse incremental deformation gr...
RankTwoTensor cauchy_stress_old
Cumulative Cauchy stress at step n.
RankTwoTensor dS
Constitutive small-stress increment (_small_stress - _small_stress_old).
RankFourTensor small_jacobian
Small-strain algorithmic tangent.
Per-qp outputs a rate produces.