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  1. Element
  2. Membrane
  3. Mixed

PS

PreviousMixedNextQE2

Last updated 1 year ago

Pian-Sumihara Quadrilateral Element

  • Number of Nodes: 4

  • Number of DoFs: 2 (Translation, Translation)

  • Supports Body Force

  • Integration Scheme: 2nd Order Gauss

  • Constant Consistent Mass Matrix With Same Order Integration

References

Syntax

element PS (1) (2...5) (6) [7]
# (1) int, unique element tag
# (2...5) int, node i, j, k, l
# (6) int, material tag
# [7] double, element thickness, default: 1.0

Remarks

  1. The original five-parameter stress field is used for stress interpolation.

  2. The mixed framework is used to extend the original formulation to accommodate elastoplastic applications.

  3. As there is no enhanced strain, no local iteration is required. Hence PS is faster than elements such as QE2.

https://doi.org/10.1002/nme.1620200911
https://doi.org/10.1002/nme.6066
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