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  1. Element
  2. Shell

S4

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Last updated 1 year ago

Four Node Shell Element

The S4 shell element uses plate element combined with element.

  • Number of Nodes: 4

  • Number of DoFs: 6 (Translation, Translation, Translation, Rotation, Rotation, Rotation)

Syntax

element S4 (1) (2...5) (6) (7) [8]
# (1) int, unique element tag
# (2...5) int, node i, j, k, l
# (6) int, material tag
# (7) double, thickness
# [8] bool, nonlinear geometry switch, default: false

Remarks

  1. If the nonlinear geometry switched on, the transformation between the global and local reference frames will depend on the current displacement. The nonlinear transformation is similar to the corotational transformation, and the local response is still linear. Thus, it follows "large displacement, small deformation" assumption.

Mindlin
GQ12
encoding