A DPG method for shallow shells

T Führer, N Heuer, AH Niemi - Numerische Mathematik, 2022 - Springer
… formulation and the DPG method developed in [26] to a shallow shell model of Koiter type
which has its roots in the vast literature on shell theory. The shallow shell model has been …

'Morphing'bistable orthotropic elliptical shallow shells

KA Seffen - Proceedings of the Royal Society A …, 2007 - royalsocietypublishing.org
… , elliptical plates and shells deforming elastically without … of the shell, in particular, for
initially untwisted shells, isotropy … shells generally diminishes as the degree of twist increases. …

Discontinuous Petrov–Galerkin method with optimal test functions for thin-body problems in solid mechanics

AH Niemi, JA Bramwell, LF Demkowicz - … Methods in Applied Mechanics …, 2011 - Elsevier
… in shell deformations. In particular, we derive a special norm for the test space which leads to
a robust method in terms of the shell … We demonstrate here that also the DPG approach can …

A DPG method for Reissner-Mindlin plates

T Führer, N Heuer, AH Niemi - arXiv preprint arXiv:2205.13301, 2022 - arxiv.org
… In the present paper, we continue our development of DPG schemes for plate and shell
extended our techniques to the Reissner–Mindlin model [30] and shallow shells of Koiter …

Fem-Implicit/Explicit Surface Mesh Discrete Schemes for 2d-3c Time-Dependent Shallow Shell Problem

R Wu, X Shen, Y Liu, Y Cheng - … for 2d-3c Time-Dependent Shallow Shell … - papers.ssrn.com
shallow shell models that can successfully capture the model’s dynamic 9 behavior. In this
paper, the discretization of the dynamic shallow shell … , (iii) the time integration method. When …

Can shell scars on dog cockles (Glycymeris glycymeris L.) be used as an indicator of fishing disturbance?

K Ramsay, MJ Kaiser, CA Richardson, LO Veale… - Journal of Sea …, 2000 - Elsevier
… The use of shell damage records as an in situ indicator of past fishing disturbance was
investigated using the dog cockle Glycymeris glycymeris L. Shell sections of dog cockles …

Structural analysis and paleoenvironmental potential of dog cockle shells (Glycymeris glycymeris) in Brittany, northwest France

C Royer, J Thébault, L Chauvaud, F Olivier - Palaeogeography …, 2013 - Elsevier
… This study demonstrates that dog cockle shells can be used … to determine whether dog
cockle shells can be used as … were incorporated in dog cockle shells in isotopic equilibrium with …

[PDF][PDF] ICES REPORT 10-13

AH Niemi, JA Bramwell, LF Demkowicz - 2010 - oden.utexas.edu
… leads to a robust method in terms of the shell thickness. Finally… the good performance of
the DPG method with optimal test … as beams, plates, and shells. Common to these problems is …

The influence of water temperature upon the life of the dog-whelk Thais lapillus (Gastropoda: Prosobranchia)

MJ Largen - The Journal of Animal Ecology, 1967 - JSTOR
Methods The diet of Thais lapillus consists primarily of Mytilus edulis L., the shell of which
is … species, whose opercular valves are forced apart by the proboscis of the dog-whelk. The …

[PDF][PDF] DPG method with optimal test functions for thin-body problems in solid mechanics

L Mitter - 2018 - numa.uni-linz.ac.at
… NOW: Shells (RN shell model). Assume 1. Axially symmetric deformations of a shallow
spherical shell with radius R and thickness d,d ≪ R. 2. If x1,x2 mid-surface coords, NO …