This example uses the same Abaqus finite element model as Example 1, but the material properties are transversely isotropic. The shell section definition is homogeneous instead of composite. Twenty-one equally spaced Simpson integration points are used through the shell thickness.

The frequencies for the first four flexible vibration modes of the unfilled bracket are listed in Table 4–2. The unfilled material in this example is softer than the filled material in Example 1 and, consequently, the frequencies are lower.

The complete input file, moldflow_ex2.inp, is shown below.

***************************************************************
**
** translated data from the Moldflow interface files named
** "moldflow_ex2.pat"
**  and
** "moldflow_ex2.osp"
**
** to the following Abaqus input files:
**
**            input file = moldflow_ex2.inp:  YES
**
** neutral material file = moldflow_ex2.shf:  NO
**                         (for *ELASTIC/*EXPANSION data)
**
**   initial stress file = moldflow_ex2.str:  YES
**                         (for *INITIAL CONDITIONS data)
**-------------------------------------------------------------
** echo of header information from the Moldflow interface 
** files:
**
** TITL information from .osp file:
** TITL
**
** FILE information from .osp file:
** FILE  JUN14-2002  11:19:59 mpi310 Residual Stress & 
** Properties
**
**      number of nodal properties = 0
**    number of element properties = 45
**                 number of nodes = 958
**          number of TRI elements = 1719
**           number of 1D elements = 32
**
** Moldflow results were written with IST coding, i.e.,
** this is an unfilled anisotropic material with residual 
** stresses
**            -------- -----------          ----
**-------------------------------------------------------------
** this input file was created with the following keyword data:
**
**      *NODE     (926 nodes)
**
**      *ELEMENT  (1719 S3R elements)
**
**      *SHELL SECTION, COMPOSITE  (7 ELSETs)
**
**      *MATERIAL
**      *ELASTIC, TYPE=SHORT FIBER
**      *EXPANSION, TYPE=SHORT FIBER
**       (elastic and expansion data will be read from file
**        moldflow_ex2.shf)
**
**      *INITIAL CONDITIONS, TYPE=STRESS, SECTION POINTS,
**       INPUT=moldflow_ex2.str
**
**      *STEP
**       (Dummy step data.  Loads and boundary conditions
**        may need to be added to complete the model.)
***************************************************************
*HEADING
TITL
***************************************************************
*NODE, NSET=NALL, INPUT=moldflow_ex2_nodes.inp
***************************************************************
*ELEMENT, TYPE=S3R, ELSET=EALL, INPUT=moldflow_ex2_elements.inp
***************************************************************
*INCLUDE, INPUT=moldflow_ex2_elsets.inp
***************************************************************
*INCLUDE, INPUT=moldflow_ex2_sections.inp
***************************************************************
*MATERIAL,NAME=moldflow_mat_01
*ELASTIC,TYPE=SHORT FIBER
*EXPANSION,TYPE=SHORT FIBER
*DENSITY
1500.,
***************************************************************
*INITIAL CONDITIONS,TYPE=STRESS,SECTION POINTS,
 INPUT=moldflow_ex2.str
***************************************************************
*STEP
*FREQUENCY, EIGENSOLVER=LANCZOS
10, 
*END STEP