Select when the material type is not
'Steel', 'RC' or 'SRC', or when the user wishes to define the material
properties directly. Orthotropic material properties can be also defined in ECS. User Defined
materials are not used in Design.
Modulus
of Elasticity
Poisson's
Ratio Poisson's ratio is used to calculate the Shear Modulus of Elasticity.
Thermal Coefficient Thermal Coefficient for thermal stress analysis.
Celsius
Fahr
Weight
Density Use Weight Density to calculate self-weights and masses.
Shear
Modulus: Shear Modulus of Elasticity(Local-xy, Local-xz, Local-yz) Shear Modulus of Elasticity = Modulus of Elasticity / (2 x (1+Poisson's
ratio))
Note For Type of Material = Isotropic, Shear Modulus is calculated by the above
expression. For Type of Material = Orthotropic, the user defines the values
of shear modulii.
Use
Mass Density: Mass per unit volume.
Note If "Use Mass Density" is checked, Mass Density is calculated
using the acceleration of gravity(g) given in the DB. If "Use Mass
Density" is unchecked, Mass Density is calculated using the acceleration
of gravity(g) specified in Model>Structure Type. The Mass is separate
from Dead Load and used for eigenvalue analysis only.
Plasticity Data
Enter plastic material data.
Plastic
Material Name: Select a Plastic Material whose plastic model properties
have been defined in the Plastic Material dialog box.
Thermal Transfer
Thermal transfer data
Specific Heat
Heat Conduction
Revision of Gen 2011
Damping ratio
Define the damping ratio by materials.
Note 1
Apply different damping
ratios to concrete and steel for response spectrum analysis / time history
analysis.
- Response Spectrum Analysis
: When Strain Energy Damping is selected, the damping ratios can be defined
by materials.
- Time History
Analysis : When Strain Energy Damping or Element Mass & Stiffness
Proportional is selected, the damping ratios can be defined by materials.
Note 2
The default damping ratios
for each material are:
-
Steel :
0.02 (2%)
-
Concrete / SRC : 0.05 (5%)
-
USER :
0.00 (0%)
To modify
previously entered material property data
Select the material property to be modified
in the list of the Properties dialog box and click to modify
the related data.
To remove
previously entered material property data
Select the material property to be deleted
in the list of the Properties dialog box and click .
To copy
previously entered material property data
Select the material property to be copied
in the list of the Properties dialog box and click .
To import
material property data from an existing fn.MGB file
Click and select the MGB file
containing the material property data or specify a file name then click
.
Material
List
Display material property data contained in the existing fn.MGB file.
Selected
List
Select material property data to be imported and register them in the Selected
List.
Note
If a fn.MGB is selected, all the material property data contained in the existing fn.MGB file are registered
in the Selected List.
Numbering
Type
Specify the Import mode for material property numbers.
Keep ID.
Import the data keeping the same material property numbers.
New ID.
Assign new numbers to the imported material property data.
To
modify previously entered material property numbers
Renumbering
Material Number dialog box
Start number
Assign a new starting number for the material to be modified.
Increment
Enter the increment for numbering material property numbers.
Change
element's material number
Modify a material property number. Using this option will modify the previously
defined material property number. If this option is not checked, the selected
material having previously defined number will become undefined and the
additional user-defined material number will be created without any assigned
elements.