Benchmark computations of stresses in a spherical dome with shell finite elements

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

  • Antti H. Niemi

Organisaatiot

Kuvaus

We present a computational framework for analyzing thin shell structures using the finite element method. The framework is based on a mesh-dependent shell model which we derive from the general laws of three-dimensional elasticity. We apply the framework for the so-called Girkmann benchmark problem involving a spherical shell stiffened with a foot ring. In particular, we compare the accuracy of different reduced strain four-node elements in this context. We conclude that the performance of the bilinear shell finite elements depends on the mesh quality but reasonable accuracy of the quantities of interest of the Girkmann problem can be attained in contrast to earlier results obtained with general shell elements for the problem.

Yksityiskohdat

AlkuperäiskieliEnglanti
SivutB440-B457
JulkaisuSIAM Journal on Scientific Computing
Vuosikerta38
Numero3
TilaJulkaistu - 2016
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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