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fdYieldDP.h

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00001 //===============================================================================
00002 //# COPYRIGHT (C): Woody's license (by BJ):
00003 //                 ``This    source  code is Copyrighted in
00004 //                 U.S.,  for  an  indefinite  period,  and anybody
00005 //                 caught  using it without our permission, will be
00006 //                 mighty good friends of ourn, cause we don't give
00007 //                 a  darn.  Hack it. Compile it. Debug it. Run it.
00008 //                 Yodel  it.  Enjoy it. We wrote it, that's all we
00009 //                 wanted to do.''
00010 //
00011 //# PROJECT:           Object Oriented Finite Element Program
00012 //# PURPOSE:           Finite Deformation Hyper-Elastic classes
00013 //# CLASS:
00014 //#
00015 //# VERSION:           0.6_(1803398874989) (golden section)
00016 //# LANGUAGE:          C++
00017 //# TARGET OS:         all...
00018 //# DESIGN:            Zhao Cheng, Boris Jeremic (jeremic@ucdavis.edu)
00019 //# PROGRAMMER(S):     Zhao Cheng, Boris Jeremic
00020 //#
00021 //#
00022 //# DATE:              July 2004
00023 //# UPDATE HISTORY:
00024 //#
00025 //===============================================================================
00026 
00027 #ifndef fdYieldDP_H
00028 #define fdYieldDP_H
00029 
00030 #include "fdYield.h"
00031 
00032 class fdYieldDP : public fdYield
00033 {
00034   private:
00035     double alpha;
00036     double k;
00037   
00038   public:
00039     fdYieldDP(double alpha_in, double k_in);
00040     // virtual ~fdYieldDP() {}; 
00041     
00042     fdYield *newObj();   
00043 
00044     int getNumRank();
00045     double getTolerance();
00046     
00047     double Yd(const stresstensor &sts, const FDEPState &fdepstate ) const;      
00048 
00049     stresstensor dYods(const stresstensor &sts, const FDEPState &fdepstate ) const; 
00050     double dYodq(const stresstensor &sts, const FDEPState &fdepstate ) const;       
00051     //stresstensor dYoda(const stresstensor &sts, const FDEPState &fdepstate ) const;
00052 
00053     void print() { opserr << *this; };   
00054 
00055     friend OPS_Stream& operator<< (OPS_Stream& os, const fdYieldDP & fdydDP);
00056 };
00057 
00058 
00059 #endif

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