MFEM v4.7.0
Finite element discretization library

Strain energy density coefficient. More...
#include <ex37.hpp>
Public Member Functions  
StrainEnergyDensityCoefficient (Coefficient *lambda_, Coefficient *mu_, GridFunction *u_, GridFunction *rho_filter_, real_t rho_min_=1e6, real_t exponent_=3.0)  
virtual real_t  Eval (ElementTransformation &T, const IntegrationPoint &ip) 
Evaluate the coefficient in the element described by T at the point ip.  
Public Member Functions inherited from mfem::Coefficient  
Coefficient ()  
virtual void  SetTime (real_t t) 
Set the time for time dependent coefficients.  
real_t  GetTime () 
Get the time for time dependent coefficients.  
virtual real_t  Eval (ElementTransformation &T, const IntegrationPoint &ip)=0 
Evaluate the coefficient in the element described by T at the point ip.  
real_t  Eval (ElementTransformation &T, const IntegrationPoint &ip, real_t t) 
Evaluate the coefficient in the element described by T at the point ip at time t.  
virtual void  Project (QuadratureFunction &qf) 
Fill the QuadratureFunction qf by evaluating the coefficient at the quadrature points.  
virtual  ~Coefficient () 
Protected Attributes  
Coefficient *  lambda =nullptr 
Coefficient *  mu =nullptr 
GridFunction *  u = nullptr 
GridFunction *  rho_filter = nullptr 
DenseMatrix  grad 
real_t  exponent 
real_t  rho_min 
Protected Attributes inherited from mfem::Coefficient  
real_t  time 

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inlinevirtual 
Evaluate the coefficient in the element described by T at the point ip.
Implements mfem::Coefficient.

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