Create an IMAT_ELEM element object.
elem=imat_elem
elem=imat_elem(tl)
elem=imat_elem(s)
elem=imat_elem(id,type,conn,color,prop,beamdata)
elem=imat_elem(id,type,conn)
The IMAT_ELEM class contains FEM element information. It provides a number of methods for working with the data.
IMAT_ELEM with no arguments will create an empty IMAT_ELEM object.
IMAT_ELEM(TL), where TL is an imat_tl, converts the traceline into an IMAT_ELEM object. It uses imat_tl/to_elem to perform the conversion.
IMAT_ELEM(S), where S is a structure containing fields with the same name as the properties of IMAT_ELEM will convert the structure into an IMAT_ELEM object.
IMAT_ELEM(ID,...) where the input argument are the same as the ADD method, will create an IMAT_ELEM with the element information added.
The IMAT_ELEM object contains several properties that define the elements:
| .id | Element IDs (list must be unique and positive) |
| .type |
Vector of element types (non-negative). The type follows the NASTRAN convention. |
| .color |
Vector of node colors (non-negative). The colors follow the I-deas convention. |
| .prop |
Nx2 matrix of property IDs. IMAT does not use this information; it is stored here for round-trip completeness with Universal files. The first column contains the physical property ID and the second contains the material property ID. |
| .beamdata | Nx3 matrix of beam data IDs. IMAT does not use this information; it is stored here for round-trip completeness with Universal files. For non-beam elements, the entries will be 0. For beam elements, the first column contains the beam orientation node number. The second column contains the fore end beam cross-section, and the third column contains the aft end ID. |
| .extra | Nx1 cell array containing element-specific "extra" data. |
| .conn | Cell array of numeric vectors containing the node IDs defining the element connectivity. For parabolic elements, the corner nodes are specified first, followed by the midside nodes. |
imat_fem, imat_cs, imat_node, imat_tl, imat_fem/partition, imat_tl/to_elem, imat_fem/validate