b2contact_mechanics.H

//------------------------------------------------------------------------
// b2contact_mechanics.H --
//
//
// written by Mathias Doreille
//
// Copyright (c) 2009 SMR Engineering & Development SA
//               2502 Bienne, Switzerland
//
// All Rights Reserved.  Proprietary source code.  The contents of
// this file may not be disclosed to third parties, copied or
// duplicated in any form, in whole or in part, without the prior
// written permission of SMR.
//------------------------------------------------------------------------
 
#ifndef B2CONTACT_MECHANICS_H_
#define B2CONTACT_MECHANICS_H_
 
namespace b2000 {
 
class ContactMechanics : virtual public ElementProperty {
public:
    // Return true if the material is path dependent. In this case and
    // if a nonlinear analysis is performed, the material object must
    // by copied for each integration point. That is for each material
    // points where the nonlinear method get_static_nonlinear_stress or
    // get_dynamic_nonlinear_stress are called during the analysis.
    //
    // If layer_id is not given, the path-dependent propriety is for all
    // the laminate. Otherwise the path-dependent propriety is for the
    // given layer.
    virtual bool path_dependent(const int layer_id = -1) const { return false; }
 
    virtual void get_friction_force(
          const double normal_pressure, const double tangential_velocity, double& friction) = 0;
};
 
}  // namespace b2000
 
#endif /* B2CONTACT_MECHANICS_H_ */