FedeasMaterial.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: 1.7 $ 00022 // $Date: 2004/07/15 21:34:10 $ 00023 // $Source: /usr/local/cvs/OpenSees/SRC/material/uniaxial/FedeasMaterial.h,v $ 00024 00025 // Written: MHS 00026 // Created: Jan 2001 00027 // 00028 // Description: This file contains the class definition for 00029 // FedeasMaterial. FedeasMaterial provides a FORTRAN interface 00030 // for programming uniaxial material models, using the subroutine 00031 // interface from the FEDEAS ML1D library, developed by F.C. Filippou. 00032 // 00033 // For more information visit the FEDEAS web page: 00034 // http://www.ce.berkeley.edu/~filippou/Research/fedeas.htm 00035 00036 #ifndef FedeasMaterial_h 00037 #define FedeasMaterial_h 00038 00039 #include <UniaxialMaterial.h> 00040 00041 class FedeasMaterial : public UniaxialMaterial 00042 { 00043 public: 00044 FedeasMaterial(int tag, int classTag, int numHV, int numData); 00045 virtual ~FedeasMaterial(); 00046 00047 virtual int setTrialStrain(double strain, double strainRate = 0.0); 00048 virtual int setTrial(double strain, double &stress, double &tangent, double strainRate = 0.0); 00049 virtual double getStrain(void); 00050 virtual double getStress(void); 00051 virtual double getTangent(void); 00052 virtual double getInitialTangent(void) = 0; 00053 00054 virtual int commitState(void); 00055 virtual int revertToLastCommit(void); 00056 virtual int revertToStart(void); 00057 00058 virtual UniaxialMaterial *getCopy(void) = 0; 00059 00060 virtual int sendSelf(int commitTag, Channel &theChannel); 00061 virtual int recvSelf(int commitTag, Channel &theChannel, 00062 FEM_ObjectBroker &theBroker); 00063 00064 virtual void Print(OPS_Stream &s, int flag = 0); 00065 00066 protected: 00067 // Invokes the FORTRAN subroutine 00068 virtual int invokeSubroutine(int ist); 00069 00070 double *data; // Material parameters array 00071 double *hstv; // History array: first half is committed, second half is trial 00072 00073 int numData; // Number of material parameters 00074 int numHstv; // Number of history variables 00075 00076 double epsilonP; // Committed strain 00077 double sigmaP; // Committed stress 00078 double tangentP; // Committed tangent 00079 00080 double epsilon; // Trial strain 00081 double sigma; // Trial stress 00082 double tangent; // Trial tangent 00083 00084 private: 00085 }; 00086 00087 #endif
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