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ST7-1.70.10.1 Moment Conventions in Plate Elements
This Webnote describes the sign and direction conventions for bending moments in plate elements. Misinterpretation of results may occur without a clear understanding of the definitions of bending moments in a Strand7 model.
When plate/shell elements are used in Strand7, the resultant moments at each element Gauss point are calculated by the solver. The solver determines three moments at each Gauss point: Mxx, Myy and Mxy in this local system. The moments have the following meaning:
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