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FiberSection3d.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 $
00022 // $Date: 2001/05/03 06:32:07 $
00023 // $Source: /usr/local/cvs/OpenSees/SRC/material/section/FiberSection3d.h,v $
00024                                                                         
00025 // Written: fmk
00026 // Created: 04/01
00027 //
00028 // Description: This file contains the class definition for 
00029 // FiberSection3d.h. FiberSection3d provides the abstraction of a 
00030 // 3d beam section discretized by fibers. The section stiffness and
00031 // stress resultants are obtained by summing fiber contributions.
00032 
00033 #ifndef FiberSection3d_h
00034 #define FiberSection3d_h
00035 
00036 #include <SectionForceDeformation.h>
00037 #include <Vector.h>
00038 #include <Matrix.h>
00039 
00040 #include <UniaxialMaterial.h>
00041 #include <Fiber.h>
00042 #include <Response.h>
00043 
00045 class FiberSection3d : public SectionForceDeformation
00046 {
00047   public:
00049     FiberSection3d(); 
00051     FiberSection3d(int tag, int numFibers, Fiber **fibers); 
00053     ~FiberSection3d();
00054 
00056     int   setTrialSectionDeformation(const Vector &deforms); 
00058     const Vector &getSectionDeformation(void);
00059 
00061     const Vector &getStressResultant(void);
00063     const Matrix &getSectionTangent(void);
00065     const Matrix &getSectionSecant(void);        
00066 
00068     int   commitState(void);
00070     int   revertToLastCommit(void);    
00072     int   revertToStart(void);
00073  
00075     SectionForceDeformation *getCopy(void);
00077     const ID &getType (void) const;
00079     int getOrder (void) const;
00080     
00082     int sendSelf(int cTag, Channel &theChannel);
00084     int recvSelf(int cTag, Channel &theChannel, 
00085    FEM_ObjectBroker &theBroker);
00087     void Print(ostream &s, int flag = 0);
00088      
00090     Response *setResponse(char **argv, int argc, Information &info);
00092     int getResponse(int responseID, Information &info);
00093 
00095     int addFiber(Fiber &theFiber);
00096 
00097   protected:
00098     
00099   private:
00101     int numFibers;                   
00102     UniaxialMaterial **theMaterials; 
00103     double   *matData;               
00104     double   kData[9];               
00105     double   sData[3];               
00106       
00107     static ID code;
00108 
00110     Vector e;          
00111     Vector eCommit;    
00112     Vector *s;         
00113     Matrix *ks;        // section stiffness
00114 };
00115 
00116 #endif
00117 ÿ
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