Subsubsection 3.17.1.1: Node_Data Class Up Subsection 3.17.1: Logfile Subsubsection 3.17.1.3: Rigid_Body_Data Class 

3.17.1.2 Element_Data Class

The element_data class defines a set of element variables. The data is stored for each element that is listed in the item list of the element_data element or for all nodes if no list is defined. The following element variables are defined. Note that the actual value is the average over the element’s integration points values (if applicable).
Element variables Description
x x-coordinate of current element centroid position
y y-coordinate of current element centroid position
z z-coordinate of current element centroid position
sx xx-component of the Cauchy stress
sy yy-component of the Cauchy stress
sz zz-component of the Cauchy stress
sxy xy-component of the Cauchy stress
syz yz-component of the Cauchy stress
sxz xz-component of the Cauchy stress
s1 first eigenvalue of Cauchy stress tensor
s2 second eigenvalue of Cauchy stress tensor
s3 third eigenvalue of Cauchy stress tensor
Ex xx-component of the Green-Lagrange strain
Ey yy-component of the Green-Lagrange strain
Ez zz-component of the Green-Lagrange strain
Exy xy-component of the Green-Lagrange strain
Eyz yz-component of the Green-Lagrange strain
Exz xz-component of the Green-Lagrange strain
E1 first eigenvalue of Green-Lagrange strain tensor
E2 second eigenvalue of Green-Lagrange strain tensor
E3 third eigenvalue of Green-Lagrange strain tensor
Fxx xx-component of the deformation gradient
Fyy yy-component of the deformation gradient
Fzz zz-component of the deformation gradient
Fxy xy-component of the deformation gradient
Fyz yz-component of the deformation gradient
Fxz xz-component of the deformation gradient
Fyx yx-component of the deformation gradient
Fzy zy-component of the deformation gradient
Fzx xz-component of the deformation gradient
J relative volume (determinant of deformation gradient)
cxxxx xxxx component of spatial elasticity tensor (a.k.a. c11)
cxxyy xxyy component of spatial elasticity tensor (a.k.a. c12)
cyyyy yyyy component of spatial elasticity tensor (a.k.a. c22)
cxxzz xxzz component of spatial elasticity tensor (a.k.a. c13)
cyyzz yyzz component of spatial elasticity tensor (a.k.a. c23)
czzzz zzzz component of spatial elasticity tensor (a.k.a. c33)
cxxxy xxxy component of spatial elasticity tensor (a.k.a. c14)
cyyxy yyxy component of spatial elasticity tensor (a.k.a. c24)
czzxy zzxy component of spatial elasticity tensor (a.k.a. c34)
cxyxy xyxy component of spatial elasticity tensor (a.k.a. c44)
cxxyz xxyz component of spatial elasticity tensor (a.k.a. c15)
cyyyz yyyz component of spatial elasticity tensor (a.k.a. c25)
czzyz zzyz component of spatial elasticity tensor (a.k.a. c35)
cxyyz xyyz component of spatial elasticity tensor (a.k.a. c45)
cyzyz yzyz component of spatial elasticity tensor (a.k.a. c55)
cxxxz xxxz component of spatial elasticity tensor (a.k.a. c16)
cyyxz yyxz component of spatial elasticity tensor (a.k.a. c26)
czzxz zzxz component of spatial elasticity tensor (a.k.a. c36)
cxyxz xyxz component of spatial elasticity tensor (a.k.a. c46)
cyzyz yzyz component of spatial elasticity tensor (a.k.a. c56)
cxzxz xzxz component of spatial elasticity tensor (a.k.a. c66)
sed strain energy density
devsed deviatoric strain energy density
D damage variable (or sum of damage variables in solid mixtures)
For analyses using biphasic, biphasic-solute, and triphasic materials, the following additional variables can be defined:
Element variables Description
p actual fluid pressure
c actual concentration of solute
wx x-component of fluid flux
wy y-component of fluid flux
wz z-component of fluid flux
j x x-component of flux of solute
j y y-component of flux of solute
j z z-component of flux of solute
For fluid analyses, the following additional variables can be defined:
Element variables Description
fx x-coordinate of element centroid position
fy y-coordinate of element centroid position
fz z--coordinate of element centroid position
fp fluid pressure
fvx x-component of fluid velocity
fvy y-component of fluid velocity
fvz z-component of fluid velocity
fJ fluid volume ratio
fd fluid density
fsp fluid stress power
fax x-component of fluid acceleration
fay y-component of fluid acceleration
faz z-component of fluid acceleration
fwx x-component of fluid vorticity
fwy y-component of fluid vorticity
fwz z-component of fluid vorticity
fsxx xx-component of fluid Cauchy stress
fsyy yy-component of fluid Cauchy stress
fszz zz-component of fluid Cauchy stress
fsxy xy-component of fluid Cauchy stress
fsyz yz-component of fluid Cauchy stress
fsxz xz-component of fluid Cauchy stress
fdxx xx-component of fluid rate of deformation
fdyy yy-component of fluid rate of deformation
fdzz zz-component of fluid rate of deformation
fdxy xy-component of fluid rate of deformation
fdyz yz-component of fluid rate of deformation
fdxz xz-component of fluid rate of deformation
For example, to store the (average) Cauchy stress for all elements, define the following data element:
<element_data data="sx;sy;sz;sxy;syz;sxz" name="element stresses"> </element_data>
 Subsubsection 3.17.1.1: Node_Data Class Up Subsection 3.17.1: Logfile Subsubsection 3.17.1.3: Rigid_Body_Data Class