OpenSees » SRC » material » section

Bidirectional.h

Go to the documentation of this file.
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: 1.6 $
00022 // $Date: 2006/08/03 23:49:46 $
00023 // $Source: /usr/local/cvs/OpenSees/SRC/material/section/Bidirectional.h,v $
00024                                                                         
00025                                                                         
00026 #ifndef Bidirectional_h
00027 #define Bidirectional_h
00028 
00029 // File: ~/material/Bidirectional.h
00030 //
00031 // Written: MHS
00032 // Created: Feb 2000
00033 // Revision: A
00034 //
00035 // Description: 
00036 //
00037 // What: "@(#) Bidirectional.h, revA"
00038 
00039 #include <SectionForceDeformation.h>
00040 
00041 #include <Matrix.h>
00042 #include <Vector.h>
00043 #include <ID.h>
00044 
00045 class Bidirectional : public SectionForceDeformation
00046 {
00047   public:
00048     Bidirectional(int tag, double E, double sigY, double Hiso, double Hkin);
00049     Bidirectional();
00050     ~Bidirectional();
00051 
00052     const char *getClassType(void) const {return "Bidirectionald";};
00053 
00054     int setTrialSectionDeformation(const Vector &v);
00055     const Matrix &getSectionTangent(void);
00056     const Matrix &getInitialTangent(void);
00057     const Vector &getStressResultant(void);
00058     const Vector &getSectionDeformation(void);
00059 
00060     int commitState(void);
00061     int revertToLastCommit(void);
00062     int revertToStart(void);
00063     
00064     SectionForceDeformation *getCopy(void);
00065     const ID &getType(void);
00066     int getOrder(void) const;
00067     
00068     int sendSelf(int commitTag, Channel &theChannel);  
00069     int recvSelf(int commitTag, Channel &theChannel, 
00070                  FEM_ObjectBroker &theBroker);
00071 
00072     void Print(OPS_Stream &s, int flag = 0);
00073 
00074   protected:
00075 
00076   private:
00077         double E;
00078         double sigY;
00079         double Hiso;
00080         double Hkin;
00081 
00082         double e_n1[2];
00083         double eP_n[2];
00084         double eP_n1[2];
00085 
00086         double q_n[2];
00087         double q_n1[2];
00088 
00089         double alpha_n;
00090         double alpha_n1;
00091         
00092         static Vector s;
00093         static Matrix ks;
00094         static ID code;
00095 };
00096 
00097 
00098 #endif

Generated on Mon Oct 23 15:05:17 2006 for OpenSees by doxygen 1.5.0