Nastran-Interface manual


Material

MENU SEQUENCE:

 


Defines new materials. All statements are fixed and it is necessary to fill all of them. The following describes different statements (for more information see NASTRAN User Manual).

At the moment it is only possible to work with linear, temperature- independent, isotropic materials.

 

-Young (Ex): Young's modulus (Real  0.0 or DEFAULT). (E)

-Shear module: Shear modulus (Real  0.0 or DEFAULT). (G)

-Poisson (NUXY): Poisson's ratio (-1.0 < Real  0.5 or DEFAULT). (NU)

-Mass Density: Mass density (Real).

-Temp ref:  Thermal expansion reference temperature (Real).

-Stress limits for tension, compression, and shear(Real) (Required for property optimization calculations; otherwise optional if margins of safety are desired.)

Remarks

1- If any one of E, G, or NU is left blank, it will be computed to satisfy the identity E = 2(1+NU) G; otherwise, values inserted by the user will be used.

2- If E and NU or G and NU are both left blank they will be given the value 0.0.