XC Open source finite element analysis program
PinchingDamage.h
1 //----------------------------------------------------------------------------
2 // XC program; finite element analysis code
3 // for structural analysis and design.
4 //
5 // Copyright (C) Luis Claudio Pérez Tato
6 //
7 // This program derives from OpenSees <http://opensees.berkeley.edu>
8 // developed by the «Pacific earthquake engineering research center».
9 //
10 // Except for the restrictions that may arise from the copyright
11 // of the original program (see copyright_opensees.txt)
12 // XC is free software: you can redistribute it and/or modify
13 // it under the terms of the GNU General Public License as published by
14 // the Free Software Foundation, either version 3 of the License, or
15 // (at your option) any later version.
16 //
17 // This software is distributed in the hope that it will be useful, but
18 // WITHOUT ANY WARRANTY; without even the implied warranty of
19 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 // GNU General Public License for more details.
21 //
22 //
23 // You should have received a copy of the GNU General Public License
24 // along with this program.
25 // If not, see <http://www.gnu.org/licenses/>.
26 //----------------------------------------------------------------------------
27 /* ****************************************************************** **
28 ** OpenSees - Open System for Earthquake Engineering Simulation **
29 ** Pacific Earthquake Engineering Research Center **
30 ** **
31 ** **
32 ** (C) Copyright 1999, The Regents of the University of California **
33 ** All Rights Reserved. **
34 ** **
35 ** Commercial use of this program without express permission of the **
36 ** University of California, Berkeley, is strictly prohibited. See **
37 ** file 'COPYRIGHT' in main directory for information on usage and **
38 ** redistribution, and for a DISCLAIMER OF ALL WARRANTIES. **
39 ** **
40 ** Developed by: **
41 ** Frank McKenna (fmckenna@ce.berkeley.edu) **
42 ** Gregory L. Fenves (fenves@ce.berkeley.edu) **
43 ** Filip C. Filippou (filippou@ce.berkeley.edu) **
44 ** **
45 ** ****************************************************************** */
46 
47 // $Revision: 1.1 $
48 // $Date: 2004/09/01 03:53:13 $
49 // $Source: /usr/local/cvs/OpenSees/SRC/material/uniaxial/snap/PinchingDamage.h,v $
50 //
51 //
52 // PinchingDamage.h: implementation of the PinchingDamage class from Fortran version.
53 // Originally from SNAP PROGRAM by Prof H.K. Krawinkler
54 //
55 // Written: A. Altoontash & Prof. G. Deierlein 12/01
56 // Revised: 05/03
57 //
58 // Purpose: This file contains the implementation for the PinchingDamage class.
59 //
61 
62 // PinchingDamage.h: interface for the PinchingDamage class.
63 //
65 
66 #ifndef PinchingDamage_H
67 #define PinchingDamage_H
68 
69 #include <material/uniaxial/UniaxialMaterial.h>
70 #include <utility/matrix/Vector.h>
71 #include <stdio.h>
72 
73 namespace XC {
74 class DamageModel;
75 
77 //
80  {
81  private:
82 
83  // Input parameters
84  double elstk,fyieldPos,fyieldNeg,alpha,Resfac; // Properties
85  double capSlope,capDispPos,capDispNeg; // Cap
86  double fpPos,fpNeg,a_pinch; // Pinching
87 
88  // Parameters calculated from input data
89  double dyieldPos,dyieldNeg;
90  DamageModel *StrDamage;
91  DamageModel *StfDamage;
92  DamageModel *AccDamage;
93  DamageModel *CapDamage;
94 
95 
96  double hsTrial[24], hsCommit[24], hsLastCommit[24];
97 
98  FILE *OutputFile; // For debugging
99  public:
100  PinchingDamage();
101  PinchingDamage(int tag);
102  PinchingDamage(int tag, Vector inputParam , DamageModel *strength, DamageModel *stiffness, DamageModel *accelerated, DamageModel *capping );
103  virtual ~PinchingDamage();
104 
105  int setTrialStrain(double d, double strainRate = 0.0);
106 
107  double getStrain(void) const;
108  double getStress(void) const;
109  double getTangent(void) const;
110  double getInitialTangent(void) const;
111 
112  int commitState(void);
113  int revertToLastCommit(void);
114  int revertToStart(void);
115 
116  //virtual
117  UniaxialMaterial *getCopy(void) const;
118 
119  int sendSelf(CommParameters &);
120  int recvSelf(const CommParameters &);
121 
122  void Print(std::ostream &s, int flag =0);
123 
124  protected:
125  void envelPosCap(double fy, double alfaPos, double alfaCap,
126  double cpDsp, double d, double *f, double *ek );
127 
128  void envelNegCap(double fy, double alfaNeg, double alfaCap,
129  double cpDsp, double d, double *f, double *ek);
130 
131  void recordInfo(int cond =0);
132 
133 
134 };
135 } // end of XC namespace
136 
137 #endif
UniaxialMaterial * getCopy(void) const
Virtual constructor.
Definition: PinchingDamage.cpp:329
Definition: Vector.h:82
Definition: DamageModel.h:87
??.
Definition: PinchingDamage.h:79
Communication parameters between processes.
Definition: CommParameters.h:65
================================================================================
Definition: ContinuaReprComponent.h:34
Base class for uniaxial materials.
Definition: UniaxialMaterial.h:88
void Print(std::ostream &s, int flag=0)
Imprime el objeto.
Definition: PinchingDamage.cpp:265