E,<ne>,<n1>,<n2>,…,<n8>

defines the element number <ne> and element nodes <n1>, <n2> … <n8> (the total node number changes from one group type to another). An element group must be active; element numbers start with 1 for each element group.

Prisms and pyramids may be obtained by repeating node numbers.

For SHELL, PLANE, or LOVEWAVE triangular elements, do not define node L (see GROUP instruction - section ).

The nodes I, J, K, L must be in sequence in a counter-clockwise direction around the element. Local coordinates in a four-node SHELL, PLANE, or LOVEWAVE element are shown below:

• x’ - specified by LI-JK, where LI and JK are midpoints of sides L-I and J-K.
• z’ - normal to x’ and to the line adjoining midpoints IJ and KL.
• y’ - normal to x’ and z’ to complete the right-handed system used to compute the resultant forces.

Node K from the BEAMS elements is a geometry reference point which is used to define the local axes 1, 2, 3 of the beam element. Node K, which may be any other nodal point in the system, must not lie on the local axis 1: