ACS SASSI Documentation

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====== E Command ======

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.

{{E_Fig1.png}}\\
Figure .1. Node Numbering for SOLID elements

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

{{E_Fig2.png}}\\
Figure .2. Node Numbering for 2D elements

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.

{{E_Fig3.png}}\\
Figure .3. Node numbering and loval coordinate system for SHELL, PLANE, or LOVEWAVE elements

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:

{{E_Fig4.png}}\\
Figure .4. Local coordinate system for BEAMS elements

ACS SASSI Documentation

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