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UniaxialMaterial.h

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00001 /* ****************************************************************** **
00002 **    OpenSees - Open System for Earthquake Engineering Simulation    **
00003 **          Pacific Earthquake Engineering Research Center            **
00004 **                                                                    **
00005 **                                                                    **
00006 ** (C) Copyright 1999, The Regents of the University of California    **
00007 ** All Rights Reserved.                                               **
00008 **                                                                    **
00009 ** Commercial use of this program without express permission of the   **
00010 ** University of California, Berkeley, is strictly prohibited.  See   **
00011 ** file 'COPYRIGHT'  in main directory for information on usage and   **
00012 ** redistribution,  and for a DISCLAIMER OF ALL WARRANTIES.           **
00013 **                                                                    **
00014 ** Developed by:                                                      **
00015 **   Frank McKenna (fmckenna@ce.berkeley.edu)                         **
00016 **   Gregory L. Fenves (fenves@ce.berkeley.edu)                       **
00017 **   Filip C. Filippou (filippou@ce.berkeley.edu)                     **
00018 **                                                                    **
00019 ** ****************************************************************** */
00020                                                                         
00021 // $Revision: 1.10 $
00022 // $Date: 2006/09/05 22:28:08 $
00023 // $Source: /usr/local/cvs/OpenSees/SRC/material/uniaxial/UniaxialMaterial.h,v $
00024                                                                         
00025                                                                         
00026 // Written: fmk 
00027 // Created: 05/98
00028 // Revision: A
00029 //
00030 // Description: This file contains the class definition for 
00031 // UniaxialMaterial. UniaxialMaterial is a base class and 
00032 // thus no objects of it's type can be instantiated. It has pure virtual 
00033 // functions which must be implemented in it's derived classes. 
00034 //
00035 // What: "@(#) UniaxialMaterial.h, revA"
00036 
00037 #ifndef UniaxialMaterial_h
00038 #define UniaxialMaterial_h
00039 
00040 #define POS_INF_STRAIN        1.0e16
00041 #define NEG_INF_STRAIN       -1.0e16
00042 
00043 #include <Material.h>
00044 class ID;
00045 class Vector;
00046 class Matrix;
00047 class Information;
00048 class Response;
00049 
00050 class SectionForceDeformation;
00051 
00052 class UniaxialMaterial : public Material
00053 {
00054   public:
00055     UniaxialMaterial (int tag, int classTag);    
00056     virtual ~UniaxialMaterial();
00057 
00058     virtual int setTrialStrain (double strain, double strainRate = 0.0) = 0;
00059     virtual int setTrial (double strain, double &stress, double &tangent, double strainRate = 0.0);
00060     virtual double getStrain (void) = 0;
00061     virtual double getStrainRate (void);
00062     virtual double getStress (void) = 0;
00063     virtual double getTangent (void) = 0;
00064     virtual double getInitialTangent (void) = 0;
00065     virtual double getDampTangent (void);
00066     virtual double getSecant (void);
00067     virtual double getRho(void);
00068     
00069     virtual int commitState (void) = 0;
00070     virtual int revertToLastCommit (void) = 0;    
00071     virtual int revertToStart (void) = 0;        
00072     
00073     virtual UniaxialMaterial *getCopy (void) = 0;
00074     virtual UniaxialMaterial *getCopy(SectionForceDeformation *s);
00075     
00076     virtual Response *setResponse (const char **argv, int argc, 
00077                                    Information &matInformation, 
00078                                    OPS_Stream &theOutputStream);
00079     virtual int getResponse (int responseID, Information &matInformation);    
00080 
00081     // AddingSensitivity:BEGIN //////////////////////////////////////////
00082     virtual double getStressSensitivity     (int gradNumber, bool conditional);
00083     virtual double getStrainSensitivity     (int gradNumber);
00084     virtual double getInitialTangentSensitivity(int gradNumber);
00085     virtual double getDampTangentSensitivity(int gradNumber);
00086     virtual double getRhoSensitivity        (int gradNumber);
00087     virtual int    commitSensitivity        (double strainGradient, int gradNumber, int numGrads);
00088     // AddingSensitivity:END ///////////////////////////////////////////
00089     
00090  protected:
00091     
00092  private:
00093 };
00094 
00095 
00096 #endif
00097

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