Represents two-node lattice element. Each node has 3 degrees of freedom. The element is defined in x,y plane. The element features are summarized in Table 6.
| Keyword | lattice2d |
| Description | Lattice element |
| Specific parameters | thick #(rn) width #(rn) gpCoords #(ra) |
| Parameters | thick: defines the out of plane (z-direction) thickness |
width: defines the width of the midpoint cross-section in the x-y plane with the point C at its centre |
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gpCooords: array of the coordinates of the integration point C in the global coordinate system |
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| Unknowns | Three dofs (u-displacement, v-displacement, w-rotation) are required in each node. |