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ntn_friclaw_linear_slip_weakening_no_healing_tmpl.hh
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Wed, Jul 10, 13:20

ntn_friclaw_linear_slip_weakening_no_healing_tmpl.hh
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/**
* @file ntn_friclaw_linear_slip_weakening_no_healing_tmpl.hh
*
* @author David Simon Kammer <david.kammer@epfl.ch>
*
* @date creation: Tue Dec 02 2014
* @date last modification: Fri Jan 22 2016
*
* @brief implementation of linear slip weakening
*
* @section LICENSE
*
* Copyright (©) 2015 EPFL (Ecole Polytechnique Fédérale de Lausanne) Laboratory
* (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu 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 3 of the License, or (at your option) any
* later version.
*
* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
__BEGIN_AKANTU__
/* -------------------------------------------------------------------------- */
template <class Regularisation>
NTNFricLawLinearSlipWeakeningNoHealing<Regularisation>::
NTNFricLawLinearSlipWeakeningNoHealing(NTNBaseContact * contact,
const FrictionID & id,
const MemoryID & memory_id) :
NTNFricLawLinearSlipWeakening<Regularisation>(contact,id,memory_id) {
AKANTU_DEBUG_IN();
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
template <class Regularisation>
void NTNFricLawLinearSlipWeakeningNoHealing<Regularisation>::computeFrictionCoefficient() {
AKANTU_DEBUG_IN();
// get arrays
const SynchronizedArray<Real> & slip = this->internalGetCumulativeSlip();
UInt nb_contact_nodes = this->contact->getNbContactNodes();
for (UInt n=0; n<nb_contact_nodes; ++n) {
if (slip(n) >= this->d_c(n)) {
this->mu(n) = this->mu_k(n);
}
else {
// mu = mu_k + (1 - slip / Dc) * (mu_s - mu_k)
this->mu(n) = this->mu_k(n)
+ (1 - (slip(n) / this->d_c(n))) * (this->mu_s(n) - this->mu_k(n));
}
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
template <class Regularisation>
void NTNFricLawLinearSlipWeakeningNoHealing<Regularisation>::printself(std::ostream & stream, int indent) const {
AKANTU_DEBUG_IN();
std::string space;
for(Int i = 0; i < indent; i++, space += AKANTU_INDENT);
stream << space << "NTNFricLawLinearSlipWeakeningNoHealing [" << std::endl;
NTNFricLawLinearSlipWeakening<Regularisation>::printself(stream, ++indent);
stream << space << "]" << std::endl;
AKANTU_DEBUG_OUT();
}
__END_AKANTU__

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