MultiaxialCyclicPlasticityPlaneStrain.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 ** ****************************************************************** */ 00015 00016 /*----+----+----+----+----+----+----+----+----+----+----+----+----+----+----* 00017 | | 00018 | MultiaxialCyclicPlasticity NDMaterial | 00019 + + 00020 |--------------------------------------------------------------------------| 00021 | | 00022 + Authors: Gang Wang AND Professor Nicholas Sitar + 00023 | | 00024 | Department of Civil and Environmental Engineering | 00025 + Univeristy of California, Berkeley, CA 94720, USA + 00026 | | 00027 | Email: wang@ce.berkeley.edu (G.W.) | 00028 | | 00029 +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----*/ 00030 #ifndef MultiaxialCyclicPlasticityPlaneStrain_h 00031 #define MultiaxialCyclicPlasticityPlaneStrain_h 00032 00033 #include <stdio.h> 00034 #include <stdlib.h> 00035 #include <math.h> 00036 00037 #include <Vector.h> 00038 #include <Matrix.h> 00039 00040 #include <MultiaxialCyclicPlasticity.h> 00041 00042 00043 class MultiaxialCyclicPlasticityPlaneStrain : public MultiaxialCyclicPlasticity { 00044 00045 00046 //-------------------Declarations------------------------------- 00047 00048 public : 00049 00050 //null constructor 00051 MultiaxialCyclicPlasticityPlaneStrain( ) ; 00052 00053 //full constructor 00054 MultiaxialCyclicPlasticityPlaneStrain( int tag, 00055 double rho, 00056 double K, 00057 double G, 00058 double Su, 00059 double Ho_kin, 00060 double Parameter_h, 00061 double Parameter_m, 00062 double Parameter_beta, 00063 double Kcoeff, 00064 double viscosity=0 ) ; 00065 00066 //elastic constructor // add density by Gang Wang 00067 MultiaxialCyclicPlasticityPlaneStrain( int tag, double rho, double K, double G ) ; 00068 00069 //destructor 00070 ~MultiaxialCyclicPlasticityPlaneStrain( ) ; 00071 00072 const char *getClassType(void) const {return "MultiaxialCyclicPlasticityPlaneStrain";}; 00073 00074 //make a clone of this material 00075 NDMaterial* getCopy( ) ; 00076 00077 //send back type of material 00078 const char* getType( ) const ; 00079 00080 //send back order of strain in vector form 00081 int getOrder( ) const ; 00082 00083 00084 //get the strain and integrate plasticity equations 00085 int setTrialStrain( const Vector &strain_from_element) ; 00086 00087 //unused trial strain functions 00088 int setTrialStrain( const Vector &v, const Vector &r ) ; 00089 int setTrialStrainIncr( const Vector &v ) ; 00090 int setTrialStrainIncr( const Vector &v, const Vector &r ) ; 00091 00092 //send back the strain 00093 const Vector& getStrain( ) ; 00094 00095 //send back the stress 00096 const Vector& getStress( ) ; 00097 00098 //send back the tangent 00099 const Matrix& getTangent( ) ; 00100 const Matrix& getInitialTangent( ) ; 00101 00102 //this is mike's problem 00103 int setTrialStrain(const Tensor &v) ; 00104 int setTrialStrain(const Tensor &v, const Tensor &r) ; 00105 int setTrialStrainIncr(const Tensor &v) ; 00106 int setTrialStrainIncr(const Tensor &v, const Tensor &r) ; 00107 const Tensor& getTangentTensor( ) ; 00108 00109 //swap history variables 00110 //int commitState( ) ; 00111 //int revertToLastCommit( ) ; 00112 //int revertToStart( ) ; 00113 00114 //sending and receiving 00115 //int sendSelf(int commitTag, Channel &theChannel) ; 00116 //int recvSelf(int commitTag, Channel &theChannel, 00117 // FEM_ObjectBroker &theBroker ) ; 00118 00119 00120 private : 00121 00122 //static vectors and matrices 00123 static Vector strain_vec ; //strain in vector notation 00124 static Vector stress_vec ; //stress in vector notation 00125 static Matrix tangent_matrix ; //material tangent in matrix notation 00126 } ; 00127 00128 //end of MultiaxialCyclicPlasticityPlaneStrain declarations 00129 00130 #endif
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