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Upper bound limit analysis allows one to evaluate directly the ultimate load of structures without performing a cumbersome incremental analysis. In order to numerically apply this method to thin plates in bending, several authors have proposed to use various finite elements discretizations. We provide in this paper a mathematical analysis which ensures the convergence of the finite element method, even with finite elements with discontinuous derivatives such as the quadratic 6 node Lagrange triangles and the cubic Hermite triangles. More precisely, we prove the -convergence of the discretized problems towards the continuous limit analysis problem. Numerical results illustrate the relevance of this analysis for the yield design of both homogeneous and non-homogeneous materials.
DOI : 10.1051/m2an/2015040
Keywords: Bounded Hessian functions, Finite element method, Γ-convergence
Bleyer, Jérémy 1 ; Carlier, Guillaume 2 ; Duval, Vincent 3 ; Mirebeau, Jean-Marie 2 ; Peyré, Gabriel 2
@article{M2AN_2016__50_1_215_0,
author = {Bleyer, J\'er\'emy and Carlier, Guillaume and Duval, Vincent and Mirebeau, Jean-Marie and Peyr\'e, Gabriel},
title = {A $\Gamma{}${-Convergence} {Result} for the {Upper} {Bound} {Limit} {Analysis} of {Plates}},
journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
pages = {215--235},
publisher = {EDP-Sciences},
volume = {50},
number = {1},
year = {2016},
doi = {10.1051/m2an/2015040},
zbl = {1353.74068},
mrnumber = {3460107},
language = {en},
url = {http://geodesic.mathdoc.fr/articles/10.1051/m2an/2015040/}
}
TY - JOUR
AU - Bleyer, Jérémy
AU - Carlier, Guillaume
AU - Duval, Vincent
AU - Mirebeau, Jean-Marie
AU - Peyré, Gabriel
TI - A $\Gamma{}$-Convergence Result for the Upper Bound Limit Analysis of Plates
JO - ESAIM: Mathematical Modelling and Numerical Analysis
PY - 2016
SP - 215
EP - 235
VL - 50
IS - 1
PB - EDP-Sciences
UR - http://geodesic.mathdoc.fr/articles/10.1051/m2an/2015040/
DO - 10.1051/m2an/2015040
LA - en
ID - M2AN_2016__50_1_215_0
ER -
%0 Journal Article
%A Bleyer, Jérémy
%A Carlier, Guillaume
%A Duval, Vincent
%A Mirebeau, Jean-Marie
%A Peyré, Gabriel
%T A $\Gamma{}$-Convergence Result for the Upper Bound Limit Analysis of Plates
%J ESAIM: Mathematical Modelling and Numerical Analysis
%D 2016
%P 215-235
%V 50
%N 1
%I EDP-Sciences
%U http://geodesic.mathdoc.fr/articles/10.1051/m2an/2015040/
%R 10.1051/m2an/2015040
%G en
%F M2AN_2016__50_1_215_0
Bleyer, Jérémy; Carlier, Guillaume; Duval, Vincent; Mirebeau, Jean-Marie; Peyré, Gabriel. A $\Gamma{}$-Convergence Result for the Upper Bound Limit Analysis of Plates. ESAIM: Mathematical Modelling and Numerical Analysis , Tome 50 (2016) no. 1, pp. 215-235. doi: 10.1051/m2an/2015040
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