FE_Element.hGo 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: 1.14 $ 00022 // $Date: 2006/02/08 20:20:00 $ 00023 // $Source: /usr/local/cvs/OpenSees/SRC/analysis/fe_ele/FE_Element.h,v $ 00024 00025 00026 #ifndef FE_Element_h 00027 #define FE_Element_h 00028 00029 // File: ~/analysis/fe_ele/FE_Element.h 00030 // 00031 // Written: fmk 00032 // Created: 11/96 00033 // Revision: A 00034 // 00035 // Description: This file contains the class definition for FE_Element. 00036 // 00037 // What: "@(#) FE_Element.h, revA" 00038 00039 #include <ID.h> 00040 #include <Matrix.h> 00041 #include <Vector.h> 00042 #include <TaggedObject.h> 00043 00044 class TransientIntegrator; 00045 class Element; 00046 class Integrator; 00047 class AnalysisModel; 00048 00049 class FE_Element: public TaggedObject 00050 { 00051 public: 00052 FE_Element(int tag, Element *theElement); 00053 FE_Element(int tag, int numDOF_Group, int ndof); 00054 virtual ~FE_Element(); 00055 00056 // public methods for setting/obtaining mapping information 00057 virtual const ID &getDOFtags(void) const; 00058 virtual const ID &getID(void) const; 00059 void setAnalysisModel(AnalysisModel &theModel); 00060 virtual int setID(void); 00061 00062 // methods to form and obtain the tangent and residual 00063 virtual const Matrix &getTangent(Integrator *theIntegrator); 00064 virtual const Vector &getResidual(Integrator *theIntegrator); 00065 00066 // methods to allow integrator to build tangent 00067 virtual void zeroTangent(void); 00068 virtual void addKtToTang(double fact = 1.0); 00069 virtual void addKiToTang(double fact = 1.0); 00070 virtual void addCtoTang(double fact = 1.0); 00071 virtual void addMtoTang(double fact = 1.0); 00072 00073 // methods to allow integrator to build residual 00074 virtual void zeroResidual(void); 00075 virtual void addRtoResidual(double fact = 1.0); 00076 virtual void addRIncInertiaToResidual(double fact = 1.0); 00077 00078 // methods for ele-by-ele strategies 00079 virtual const Vector &getTangForce(const Vector &x, double fact = 1.0); 00080 virtual const Vector &getK_Force(const Vector &x, double fact = 1.0); 00081 virtual const Vector &getKi_Force(const Vector &x, double fact = 1.0); 00082 virtual const Vector &getC_Force(const Vector &x, double fact = 1.0); 00083 virtual const Vector &getM_Force(const Vector &x, double fact = 1.0); 00084 virtual void addM_Force(const Vector &accel, double fact = 1.0); 00085 virtual void addD_Force(const Vector &vel, double fact = 1.0); 00086 00087 virtual int updateElement(void); 00088 00089 virtual Integrator *getLastIntegrator(void); 00090 virtual const Vector &getLastResponse(void); 00091 Element *getElement(void); 00092 00093 virtual void Print(OPS_Stream&, int = 0) {return;}; 00094 00095 // AddingSensitivity:BEGIN //////////////////////////////////// 00096 virtual void addResistingForceSensitivity(int gradNumber, double fact = 1.0); 00097 virtual void addM_ForceSensitivity (int gradNumber, const Vector &vect, double fact = 1.0); 00098 virtual void addD_ForceSensitivity (int gradNumber, const Vector &vect, double fact = 1.0); 00099 virtual int commitSensitivity (int gradNum, int numGrads); 00100 // AddingSensitivity:END ////////////////////////////////////// 00101 00102 protected: 00103 void addLocalM_Force(const Vector &accel, double fact = 1.0); 00104 void addLocalD_Force(const Vector &vel, double fact = 1.0); 00105 void addLocalM_ForceSensitivity(int gradNumber, const Vector &accel, double fact = 1.0); 00106 void addLocalD_ForceSensitivity(int gradNumber, const Vector &vel, double fact = 1.0); 00107 00108 00109 // protected variables - a copy for each object of the class 00110 ID myDOF_Groups; 00111 ID myID; 00112 00113 private: 00114 // private variables - a copy for each object of the class 00115 int numDOF; 00116 AnalysisModel *theModel; 00117 Element *myEle; 00118 Vector *theResidual; 00119 Matrix *theTangent; 00120 Integrator *theIntegrator; // need for Subdomain 00121 00122 00123 // static variables - single copy for all objects of the class 00124 static Matrix errMatrix; 00125 static Vector errVector; 00126 static Matrix **theMatrices; // array of pointers to class wide matrices 00127 static Vector **theVectors; // array of pointers to class widde vectors 00128 static int numFEs; // number of objects 00129 00130 00131 }; 00132 00133 #endif 00134 00135
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