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LogWEnergy.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:              19AUg2003
00023 //# UPDATE HISTORY:    28May2004
00024 //#
00025 //#
00026 //===============================================================================
00027 
00028 
00029 
00030 #ifndef LogWEnergy_H
00031 #define LogWEnergy_H
00032 
00033 #include <Vector.h>
00034 #include <Tensor.h>
00035 #include <math.h>
00036 #include <OPS_Globals.h>
00037 #include <W.h>
00038 
00039 
00040 class LogWEnergy : public WEnergy
00041 {
00042   private:
00043     double K;
00044     double G;
00045 
00046   public:
00047     LogWEnergy(double , double );
00048     LogWEnergy();
00049     ~LogWEnergy();
00050     WEnergy *newObj( );
00051 
00052     const double wE(const double &, const Vector &) ;
00053     const Vector disowOdlambda(const Vector &) ;
00054     const Vector d2isowOdlambda2(const Vector &) ;
00055     //const tensor d2isowOdlambda1dlambda2(const Vector &) ;
00056     const double dvolwOdJ(const double &) ;
00057     const double d2volwOdJ2(const double &) ;
00058 
00059 };
00060 
00061 #endif
00062

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