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Rev 2721 Rev 4628
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    const Matrix &getTangent (void);
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    const Matrix &getTangent (void);
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    const Matrix &getInitialTangent (void);
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    const Matrix &getInitialTangent (void);
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    const Vector &getStress (void);


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    const Vector &getStress (void);


          

          

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    const Vector &getStrain (void);


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    const Vector &getStrain (void);


          

          

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    int setTrialStrain (const Tensor &v);


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    int setTrialStrain (const Tensor &v, const Tensor &r);


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    int setTrialStrainIncr (const Tensor &v);


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    int setTrialStrainIncr (const Tensor &v, const Tensor &r);


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    const Tensor &getTangentTensor (void);


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    const stresstensor& getStressTensor (void);


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    const straintensor& getStrainTensor (void);


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    // For elastoplastic material model


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    int setStressTensor(const Tensor& stressIn);


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    int commitState (void);


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    int commitState (void);


          

          

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    int revertToLastCommit (void);


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    int revertToLastCommit (void);


          

          

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    int revertToStart (void);


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    int revertToStart (void);


          

          

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    int sendSelf(int commitTag, Channel &theChannel);


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    int sendSelf(int commitTag, Channel &theChannel);


          

          

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    int recvSelf(int commitTag, Channel &theChannel, FEM_ObjectBroker &theBroker);


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    int recvSelf(int commitTag, Channel &theChannel, FEM_ObjectBroker &theBroker);


          

          

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    void Print(OPS_Stream &s, int flag =0);


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    void Print(OPS_Stream &s, int flag =0);


          

          

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  //Private functions


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  private:


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    const Tensor& ComputeElasticStiffness(void);


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  protected:


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  protected:


          

          

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  private:


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  private:


          

          

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    double exp0;                 // exponent usually 0.6


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    double exp0;                 // exponent usually 0.6


          

          

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    double p_ref;                // Reference pressure, usually atmosphere pressure, i.e. 100kPa


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    double p_ref;                // Reference pressure, usually atmosphere pressure, i.e. 100kPa


          

          

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    double p_cutoff;             // Cutoff pressure of this material point


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    double p_cutoff;             // Cutoff pressure of this material point


          

          

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    static stresstensor Stress;  // Stress tensor


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    static Tensor Dt;            // Elastic constants tensor


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    straintensor Strain;         // Strain tensor


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    stresstensor CStrain;


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    stresstensor CStress;


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    static Vector sigma;


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    static Vector sigma;


          

          

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    static Matrix D;


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    static Matrix D;


          

          

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    Vector epsilon;


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    Vector epsilon;


          

          

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    Vector Cepsilon;


          

          

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    double p_n1; // trial pressure


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    double p_n; // committed pressure


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    double p_n; // committed pressure


          

          

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    double p_n1; // trial pressure


          

          

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};


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};


          

          

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#endif


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#endif


          

          

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