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/*************************************************************************
* Copyright (C) 2006 by luc scholtes *
* luc.scholtes@hmg.inpg.fr *
* *
* This program is free software; it is licensed under the terms of the *
* GNU General Public License v2 or later. See file LICENSE for details. *
*************************************************************************/
#include "CapillaryStressRecorder.hpp"
#include <lib/high-precision/Constants.hpp>
#include <pkg/common/ElastMat.hpp>
#include <pkg/common/Sphere.hpp>
#include <pkg/dem/CapillaryPhys.hpp>
#include <pkg/dem/Law2_ScGeom_CapillaryPhys_Capillarity.hpp>
#include <pkg/dem/TriaxialCompressionEngine.hpp>
#include <core/Omega.hpp>
#include <core/Scene.hpp>
namespace yade { // Cannot have #include directive inside.
YADE_PLUGIN((CapillaryStressRecorder));
CREATE_LOGGER(CapillaryStressRecorder);
void CapillaryStressRecorder::action()
{
shared_ptr<BodyContainer>& bodies = scene->bodies;
// at the beginning of the file; write column titles
if (out.tellp() == 0) { out << "iteration Scap11 Scap22 Scap33 Scap12 Scap13 Scap23 Uc Sr w" << endl; }
if (!triaxialCompressionEngine) {
vector<shared_ptr<Engine>>::iterator itFirst = scene->engines.begin();
vector<shared_ptr<Engine>>::iterator itLast = scene->engines.end();
for (; itFirst != itLast; ++itFirst) {
if ((*itFirst)->getClassName() == "TriaxialCompressionEngine") {
LOG_DEBUG("stress controller engine found");
triaxialCompressionEngine = YADE_PTR_CAST<TriaxialCompressionEngine>(*itFirst);
}
}
if (!triaxialCompressionEngine) {
LOG_ERROR("Stress controller engine not found, the recorder cannot be used.");
return;
}
}
Real f1_cap_x = 0, f1_cap_y = 0, f1_cap_z = 0, x1 = 0, y1 = 0, z1 = 0, x2 = 0, y2 = 0, z2 = 0;
Real sig11_cap = 0, sig22_cap = 0, sig33_cap = 0, sig12_cap = 0, sig13_cap = 0, sig23_cap = 0, Vwater = 0, capillaryPressure = 0;
int j = 0;
InteractionContainer::iterator ii = scene->interactions->begin();
InteractionContainer::iterator iiEnd = scene->interactions->end();
for (; ii != iiEnd; ++ii) {
if ((*ii)->isReal()) {
const shared_ptr<Interaction>& interaction = *ii;
CapillaryPhys* meniscusParameters = static_cast<CapillaryPhys*>(interaction->phys.get());
if (meniscusParameters->meniscus) {
j = j + 1;
unsigned int id1 = interaction->getId1();
unsigned int id2 = interaction->getId2();
Vector3r fcap = meniscusParameters->fCap;
f1_cap_x = fcap[0];
f1_cap_y = fcap[1];
f1_cap_z = fcap[2];
Body* de1 = (*bodies)[id1].get();
Body* de2 = (*bodies)[id2].get();
x1 = de1->state->pos[0];
y1 = de1->state->pos[1];
z1 = de1->state->pos[2];
x2 = de2->state->pos[0];
y2 = de2->state->pos[1];
z2 = de2->state->pos[2];
/// capillary stresses from contact forces
sig11_cap = sig11_cap + f1_cap_x * (x1 - x2);
sig22_cap = sig22_cap + f1_cap_y * (y1 - y2);
sig33_cap = sig33_cap + f1_cap_z * (z1 - z2);
sig12_cap = sig12_cap + f1_cap_x * (y1 - y2);
sig13_cap = sig13_cap + f1_cap_x * (z1 - z2);
sig23_cap = sig23_cap + f1_cap_y * (z1 - z2);
/// Liquid volume
Vwater += meniscusParameters->vMeniscus;
capillaryPressure = meniscusParameters->capillaryPressure;
}
}
}
/// Sample volume
Real V = (triaxialCompressionEngine->height) * (triaxialCompressionEngine->width) * (triaxialCompressionEngine->depth);
/// Solid volume
Real Vs = 0, Rbody = 0, SR = 0;
for (const auto& b : *bodies) {
if (b->shape->getClassIndex() != Sphere::getClassIndexStatic()) continue;
Sphere* sphere = static_cast<Sphere*>(b->shape.get());
if (sphere) {
Rbody = sphere->radius;
SR += Rbody;
Vs += 1.333 * Mathr::PI * (Rbody * Rbody * Rbody);
}
}
Real Vv = V - Vs;
Real Sr = 100 * Vwater / Vv;
if (Sr > 100) Sr = 100;
Real w = 100 * Vwater / V;
if (w > (100 * Vv / V)) w = 100 * (Vv / V);
/// homogeneized capillary stresses
Real SIG_11_cap = 0, SIG_22_cap = 0, SIG_33_cap = 0, SIG_12_cap = 0, SIG_13_cap = 0, SIG_23_cap = 0;
SIG_11_cap = sig11_cap / V;
SIG_22_cap = sig22_cap / V;
SIG_33_cap = sig33_cap / V;
SIG_12_cap = sig12_cap / V;
SIG_13_cap = sig13_cap / V;
SIG_23_cap = sig23_cap / V;
out << boost::lexical_cast<string>(scene->iter) << " " << boost::lexical_cast<string>(SIG_11_cap) << " " << boost::lexical_cast<string>(SIG_22_cap)
<< " " << boost::lexical_cast<string>(SIG_33_cap) << " " << boost::lexical_cast<string>(SIG_12_cap) << " "
<< boost::lexical_cast<string>(SIG_13_cap) << " " << boost::lexical_cast<string>(SIG_23_cap) << " "
<< boost::lexical_cast<string>(capillaryPressure) << " " << boost::lexical_cast<string>(Sr) << " " << boost::lexical_cast<string>(w) << " " << endl;
}
} // namespace yade
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