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StaticIntegrator.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: 1.1.1.1 $
00022 // $Date: 2000/09/15 08:23:17 $
00023 // $Source: /usr/local/cvs/OpenSees/SRC/analysis/integrator/StaticIntegrator.h,v $
00024                                                                         
00025                                                                         
00026 #ifndef StaticIntegrator_h
00027 #define StaticIntegrator_h
00028 
00029 // File: ~/analysis/integrator/StaticIntegrator.h
00030 // 
00031 // Written: fmk 
00032 // Created: 11/96
00033 // Revision: A
00034 //
00035 // Description: This file contains the class definition for StaticIntegrator.
00036 // StaticIntegrator is an algorithmic class for setting up the finite element
00037 // equations for a static analysis and for Incrementing the nodal displacements
00038 // with the values in the soln vector to the LinearSOE object. 
00039 //
00040 // What: "@(#) StaticIntegrator.h, revA"
00041 
00042 #include <IncrementalIntegrator.h>
00043 
00044 class LinearSOE;
00045 class AnalysisModel;
00046 class FE_Element;
00047 class Vector;
00048 
00049 class StaticIntegrator : public IncrementalIntegrator
00050 {
00051   public:
00052     StaticIntegrator(int classTag);    
00053 
00054     virtual ~StaticIntegrator();
00055 
00056     // methods which define what the FE_Element and DOF_Groups add
00057     // to the system of equation object.
00058     virtual int formEleTangent(FE_Element *theEle);
00059     virtual int formEleResidual(FE_Element *theEle);
00060     virtual int formNodTangent(DOF_Group *theDof);        
00061     virtual int formNodUnbalance(DOF_Group *theDof);    
00062     
00063     virtual int newStep(void) =0;    
00064 
00065   protected:
00066     
00067   private:
00068 };
00069 
00070 #endif
00071

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