arrow
Return

Avoiding membrane locking with Regge interpolation

delete2021-01-01
delete5
delete
OA
AI
M
Michael Neunteufel *
J
Joachim Schöberl
DOI:10.1016/j.cma.2020.113524delete
deleteOriginal
deleteShare
deleteSave
View PDF
Abstract

Abstract

En 中文
In this paper we present a method to overcome membrane locking of thin shells. An interpolation operator into the so-called Regge finite element space is inserted in the membrane energy term to weaken the implicitly given kernel constraints. The number of constraints is decreased on triangular meshes compared to reduced integration techniques, in the lowest order case asymptotically by a factor two. A tying point procedure to accomplish the interpolation is presented revealing a strong connection to MITC shell elements. Provided the interpolant, this approach can be incorporated easily into existing shell elements. The performance of the proposed method is demonstrated by means of several benchmark examples. (C) 2020 Elsevier B.V. All rights reserved.
Keywords:
Locking
Shells
Finite element method
Regge calculus
AI Summary

AI Summary

Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.

Journal

Computer Methods in Applied Mechanics and Engineering cover
Computer Methods in Applied Mechanics and Engineering
IF:
7.3
Papers:
1.3W
Citations:
5.6W

Organization

T
Technische Universitat Wien
Scholars:
1.3W
Papers: 1.1W
Citations: 21