MET 415 Lecture Notes

Text: Building Better Products with FEA,
by V. Adams & A. Askenazi, (Read pp. 219-225)

page 219 "assumptions must be properly documented so that possible discrepancies may be easily accounted for later in the correlation phase"

Assign properties to underlying geometry
     ANSYS: assign "attributes" on areas or volumes
     Workbench: material assigned to each part/body

Property Names: 
     ANSYS: no names, ID numbers like MAT=1, TYPE=1, REAL=1, etc.
     Workbench: material assigned by name
            Demo material library available 
        User library of materials is possible.

Use colors to display different materials
(ANSYS: PlotCtrls -> Numbering)

Density UNITS:
    (English: bin) "slinches"/in³ actually (lbf * sec²)/in⁴ from rho/g_c.
    (SI: N-m-s)    kg/m³
    (SI: N-mm-s) metric tonnes/mm³

Nonlinear Material Properties (FEA-2) used to describe the stress-strain behavior, after yielding occurs.

page 225 "material orientation ... in terms of user-defined directions"
    ANSYS attribute: ESYS (element coordinate system)
    Workbench: TBD in future releases