Shell property definition

@FILE_NAME {FileName}
@COMMENTS {CommentText}


  1. The physical mass and stiffness properties of a shell are defined in this section.
  2. The stiffness properties of the shell can be defined in two alternative manners, depending on the keyword defined first.
    1. If keyword @MATERIAL_PROPERTY_NAME appears first, the shell is assumed to be made of a homogeneous, isotropic, linearly elastic material, whose mass and stifness properties are defined by material properties, MatPropName. When using this option, the thickness of the shell must defined by thickness property, ThkPrpName.
    2. If the keyword @FILE_NAME appears first, the mass and stiffness matrices of the shell will be read from file FileName.
  3. It is possible to attach comments to the definition of the object; these comments have no effect on its definition.