Concrete02.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: 1.2 $ 00022 // $Date: 2006/08/03 23:42:19 $ 00023 // $Source: /usr/local/cvs/OpenSees/SRC/material/uniaxial/Concrete02.h,v $ 00024 00025 // Written: fmk 00026 // Created: 03/06 00027 // 00028 // Description: This file contains the class definition for 00029 // Concrete02. Concrete02 is based on an f2c of the FEDEAS material 00030 // Concr2.f which is: 00031 /*----------------------------------------------------------------------- 00032 ! concrete model with damage modulus 00033 ! by MOHD YASSIN (1993) 00034 ! adapted to FEDEAS material library 00035 ! by D. Sze and Filip C. Filippou in 1994 00036 -----------------------------------------------------------------------*/ 00037 00038 00039 00040 #ifndef Concrete02_h 00041 #define Concrete02_h 00042 00043 #include <UniaxialMaterial.h> 00044 00045 class Concrete02 : public UniaxialMaterial 00046 { 00047 public: 00048 Concrete02(int tag, double _fc, double _epsc0, double _fcu, 00049 double _epscu, double _rat, double _ft, double _Ets); 00050 00051 Concrete02(void); 00052 00053 virtual ~Concrete02(); 00054 00055 const char *getClassType(void) const {return "Concrete02";}; 00056 double getInitialTangent(void); 00057 UniaxialMaterial *getCopy(void); 00058 00059 int setTrialStrain(double strain, double strainRate = 0.0); 00060 double getStrain(void); 00061 double getStress(void); 00062 double getTangent(void); 00063 00064 int commitState(void); 00065 int revertToLastCommit(void); 00066 int revertToStart(void); 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 void Tens_Envlp (double epsc, double &sigc, double &Ect); 00078 void Compr_Envlp (double epsc, double &sigc, double &Ect); 00079 00080 // matpar : Concrete FIXED PROPERTIES 00081 double fc; // concrete compression strength : mp(1) 00082 double epsc0; // strain at compression strength : mp(2) 00083 double fcu; // stress at ultimate (crushing) strain : mp(3) 00084 double epscu; // ultimate (crushing) strain : mp(4) 00085 double rat; // ratio between unloading slope at epscu and original slope : mp(5) 00086 double ft; // concrete tensile strength : mp(6) 00087 double Ets; // tension stiffening slope : mp(7) 00088 00089 // hstvP : Concerete HISTORY VARIABLES last committed step 00090 double ecminP; // hstP(1) 00091 double deptP; // hstP(2) 00092 double epsP; // = strain at previous converged step 00093 double sigP; // = stress at previous converged step 00094 double eP; // stiffness modulus at last converged step; 00095 00096 // hstv : Concerete HISTORY VARIABLES current step 00097 double ecmin; 00098 double dept; 00099 double sig; 00100 double e; 00101 double eps; 00102 }; 00103 00104 00105 #endif 00106
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