98 lines
3 KiB
C
98 lines
3 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright held by original author
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM; if not, write to the Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Description
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Bilinear cohesive law.
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\*---------------------------------------------------------------------------*/
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#include "bilinearCohesiveLaw.H"
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#include "addToRunTimeSelectionTable.H"
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// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
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namespace Foam
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{
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defineTypeNameAndDebug(bilinearCohesiveLaw, 0);
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addToRunTimeSelectionTable(cohesiveLaw, bilinearCohesiveLaw, dictionary);
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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// Construct from components
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Foam::bilinearCohesiveLaw::bilinearCohesiveLaw
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(
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const word& cohesiveLawName,
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const dictionary& dict
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)
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:
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cohesiveLaw(cohesiveLawName, dict),
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sigma1_(cohesiveLawCoeffs().lookup("sigma1")),
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delta1_(cohesiveLawCoeffs().lookup("delta1")),
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deltaC_((2.0*GIc() - sigmaMax()*delta1())/sigma1())
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{}
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Foam::bilinearCohesiveLaw::bilinearCohesiveLaw
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(
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const bilinearCohesiveLaw& blcl
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)
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:
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cohesiveLaw(blcl),
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sigma1_(cohesiveLawCoeffs().lookup("sigma1")),
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delta1_(cohesiveLawCoeffs().lookup("delta1")),
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deltaC_(blcl.deltaC_)
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{}
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// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
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Foam::bilinearCohesiveLaw::~bilinearCohesiveLaw()
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{}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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//- Return current holding traction
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Foam::scalar Foam::bilinearCohesiveLaw::traction(scalar delta) const
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{
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if (delta > deltaC().value())
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{
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return 0.0;
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}
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else if (delta < 0)
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{
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return sigmaMax().value();
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}
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else if (delta > delta1().value())
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{
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return sigma1().value()*(1.0 - (delta-delta1().value())/(deltaC().value()-delta1().value()));
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}
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return sigmaMax().value() + (sigma1().value()-sigmaMax().value())*delta/delta1().value();
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}
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// ************************************************************************* //
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