/usr/include/liggghts/mesh_module_stress.h is in libliggghts-dev 3.7.0+repack1-1.
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The actual contents of the file can be viewed below.
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This is the
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╚══════╝╚═╝ ╚═════╝ ╚═════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚══════╝®
DEM simulation engine, released by
DCS Computing Gmbh, Linz, Austria
http://www.dcs-computing.com, office@dcs-computing.com
LIGGGHTS® is part of CFDEM®project:
http://www.liggghts.com | http://www.cfdem.com
Core developer and main author:
Christoph Kloss, christoph.kloss@dcs-computing.com
LIGGGHTS® is open-source, distributed under the terms of the GNU Public
License, version 2 or later. It 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. You should have
received a copy of the GNU General Public License along with LIGGGHTS®.
If not, see http://www.gnu.org/licenses . See also top-level README
and LICENSE files.
LIGGGHTS® and CFDEM® are registered trade marks of DCS Computing GmbH,
the producer of the LIGGGHTS® software and the CFDEM®coupling software
See http://www.cfdem.com/terms-trademark-policy for details.
-------------------------------------------------------------------------
Contributing author and copyright for this file:
(if not contributing author is listed, this file has been contributed
by the core developer)
Christoph Kloss (DCS Computing GmbH, JKU Linz)
Arno Mayrhofer (DCS Computing GmbH)
Copyright 2012- DCS Computing GmbH, Linz
Copyright 2009-2012 JKU Linz
------------------------------------------------------------------------- */
#ifdef MESHMODULE_CLASS
MeshModuleStyle(stress,MeshModuleStress)
#else
#ifndef LMP_MESH_MODULE_STRESS_H
#define LMP_MESH_MODULE_STRESS_H
#include "mesh_module.h"
namespace LAMMPS_NS
{
class MeshModuleStress : public MeshModule
{
public:
MeshModuleStress(LAMMPS *lmp, int &iarg_, int narg, char **arg, FixMeshSurface *fix_mesh);
virtual ~MeshModuleStress();
virtual void post_create_pre_restart();
virtual void post_create();
virtual void init();
virtual void setup(int vflag) {}
virtual int setmask();
virtual void pre_force(int vflag);
virtual void final_integrate();
virtual double compute_vector(int n);
virtual void add_particle_contribution(int ip, double *frc,
double *delta, int iTri, double *v_wall);
void add_global_external_contribution(double *frc);
void add_global_external_contribution(double *frc,double *trq);
// inline access
inline bool trackWear()
{ return wear_flag_; }
inline bool trackStress()
{ return stress_flag_; }
inline void f_total(double *_f)
{ vectorCopy3D(f_total_,_f); }
inline double f_total(int i)
{ return f_total_[i]; }
inline double *f_total_ptr()
{ return f_total_; }
inline double f_total_mag()
{ return vectorMag3D(f_total_); }
inline void torque_total(double *_t)
{ vectorCopy3D(torque_total_,_t); }
inline double torque_total(int i)
{ return torque_total_[i]; }
inline double *torque_total_ptr()
{ return torque_total_; }
inline int get_num_vector_components() const
{ return 9; }
inline void set_p_ref(double *_p_ref)
{ p_ref_.set(0,_p_ref); }
inline double get_wear_increment(int i)
{ return (*wear_increment_)(i); }
void set_store_wear_increment(const bool set)
{ store_wear_increment_ = set; }
protected:
// STRESS
// total force and total torque
double f_total_[3], torque_total_[3];
// inline access
inline double* f(int i)
{ return (*f_)(i); }
inline double& sigma_n(int i)
{ return (*sigma_n_)(i); }
inline double& sigma_t(int i)
{ return (*sigma_t_)(i); }
inline double& wear(int i)
{ return (*wear_)(i); }
inline double& wear_step(int i)
{ return (*wear_step_)(i); }
inline double& wear_increment(int i)
{ return (*wear_increment_)(i); }
inline double p_ref(int i)
{ return p_ref_(0)[i]; }
private:
// inititalization fcts
void regStress();
void regWear();
void zeroizeStress();
void zeroizeWear();
void calc_total_force();
void add_gravity();
// STRESS
//
bool stress_flag_;
// buffer variables for correct output
double f_total_old_[3], torque_total_old_[3];
bool updatedStresses_;
// stress flag in FixMeshSurface
// reference point, total force and total torque
VectorContainer<double,3> &p_ref_;
// per-element force and torque
VectorContainer<double,3> *f_;
ScalarContainer<double> *sigma_n_;
ScalarContainer<double> *sigma_t_;
// WEAR
// flag for wear model and Finnie constant
int wear_flag_;
double const* const* k_finnie_;
ScalarContainer<double> *wear_;
ScalarContainer<double> *wear_step_;
ScalarContainer<double> *wear_increment_;
bool store_wear_increment_;
};
} /* namespace LAMMPS_NS */
#endif
#endif
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