The new ASDShellQ4 and ASDShellT3 thick shell elements in OpenSees and STKO

Описание к видео The new ASDShellQ4 and ASDShellT3 thick shell elements in OpenSees and STKO

The OpenSees shell element library has been enriched by 2 new entries developed by ASDEA Software: the quadrilateral ASDShellQ4 and triangular ASDShellT3 shell elements.
Regarding the plate-bending part, they represent thick (shear-deformable) Reissner-Mindlin plates. As is known, low order elements can exhibit transverse-shear locking in the thin plate limit. To overcome this problem, the MITC4 and MITC3 formulations are used.
As for the membrane part, both use special formulations (AGQ6-I for ASDShellQ4 and ANDeS for ASDShellT3) to improve the in-plane bending behavior even with very coarse discretization.

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