MODEL.m

%--------------------------------------------------------------------------
% MODEL
%--------------------------------------------------------------------------
% Creation of a MODEL object.

%--------------------------------------------------------------------------
% Syntax
%--------------------------------------------------------------------------
MO = MODEL(label,formulation,elasticity,elasticity_type)
MO = MODEL(label,formulation,elasticity,elasticity_type,law_type,law_name)
MO = MODEL(label,formulation,elasticity,elasticity_type,law_type,law_name,elem_type)
MO = MODEL(label,formulation,elasticity,elasticity_type,law_type,law_name,elem_type,crack_path)

%--------------------------------------------------------------------------
% Description
%--------------------------------------------------------------------------
% The MODEL method is used to create a MODEL object. This object is used to
% affect a constitutive law to a domain defined by its label. This object
% has the following properties: 
%        - group           : GROUP object
%        - formulation     : STRING - Formulation
%        - elasticity      : STRING - Elasticity
%        - elasticity_type : STRING - Type of elasticity
%        - law_type        : STRING - Type of constitutive law
%        - law_name        : STRING - Name of the constitutive law
%        - elem_type       : STRING - Type of finite element type
%        - int_var_number  : scalar - Number of internal variables
%        - int_rule_stif   : INT_RULE for the stiffness
%        - int_rule_mass   : INT_RULE for the mass
%        - section_topo    : TOPOLOGY object - in case of the multifiber 
%                            formulation
%        - crack_path      : STRING - Description of the way to compute
%                            normal when E-FEM is used

%--------------------------------------------------------------------------
% Input arguments
%--------------------------------------------------------------------------
% label           : STRING - label of the domain to which a MODEL should be
%                   affected
% formulation     : STRING - type of formulation. It can be equal to: 
%                       - MECHANICS
% 
% elasticity      : STRING - existence or not of an elastic stage. It can 
%                   be equal to: 
%                       - ELASTICITY
% 
% elasticity_type : STRING - type of elasticity. It can be equal to: 
%                       - ISOTROPIC
% 
% law_type        : STRING - type of material law. It can be equal to: 
%                       - DAMAGE
%                       - PLASTICITY
% 
% law_name        : STRING - name the law to be used. It can be equal to: 
%     - PLASTICITY
%       - HOMO  :   1D homogeneized constitutive law to describe the behavior
%                   of the steel accounting for the steel/concrete interface
%                   with corrosion. Only TRUSS elements.
%       - VONMISES: 2D/3D and POJS formulation of the Von Mises plasticity
%                   constitutive law.
%       - OUGLOVA:  2D/3D and TRUSS formulation of the Ouglova plasticity
%                   constitutive law accounting for corrosion.
%     - DAMAGE 
%       - MAZARS:   2D/3D and TRUSS, TRIS, QUAS Mazars's damage law
%       - CONCYC:   3D damage constitutive law to describe the behavior of
%                   concrete under cyclic loading
%       - ZAFATI:   3D anisotropic damage constitutive law to describe the 
%                   behavior of concrete under cyclic loading
%       - EEM   :   2D (TRI3) and TRUSS formulation of the Embedded Finite
%                   Element Method (E-FEM)
%       - IDEFIX:   TRUSS formulation of a generalized DOF constitutive law
%                   to describe the hysteretic response of RC beams subjected to
%                   seismic loading
% 
% elem_type : STRING - type of finite element when a specific
%             kinematics is used
%     -  TRUSS: truss element
%     -  TIMO : 3D Timoshenko elements with multifiber
%     -  FLI  : 2D Timoshenko elements with multifiber
%     -  FLIG : 2D/3D generalized Timoshenko elements
%     -  FCQ  : 2D generalized elements
%     -  POJS : 1 node element in case of multifiber formulation
%     -  TRIS : 3 node element in case of multifiber formulation
%     -  QUAS : 4 node element in case of multifiber formulation
%     -  T3G  : T3-gamma shell elements
% 
% crack_path: STRING - this field is used to describe how the normal to the
%             discontinuities are computed. It can be equal to: 
%     - TRACKING: the normal are prescribed by the user 
%     - STRAIN  : the normal is computed from the principal strains

%--------------------------------------------------------------------------
% Output arguments
%--------------------------------------------------------------------------
% MO              : MODEL object

%--------------------------------------------------------------------------
% Example
%--------------------------------------------------------------------------
MO1

MO1 = 

  MODEL with properties:

              group: [1x1 GROUP]
        formulation: 'MECHANICS'
         elasticity: 'ELASTICITY'
    elasticity_type: 'ISOTROPIC'
           law_type: 'DAMAGE'
           law_name: 'EFEM'
          elem_type: 'TRUSS'
     int_var_number: 9
      int_rule_stif: [1x1 INT_RULE]
      int_rule_mass: [1x1 INT_RULE]
       section_topo: []
         crack_path: []