[article] 
inJournal of engineering mechanics > Vol. 136 N° 8 (Août 2010) . - pp. 996-1005

Titre :	Nonlinear analysis of masonry arches strengthened with composite materials
Type de document :	texte imprimé
Auteurs :	Dvir Elmalich, Auteur ; Oded Rabinovitch, Auteur
Article en page(s) :	pp. 996-1005
Note générale :	Mécanique appliquée
Langues :	Anglais (eng)
Mots-clés :	Masonry Arches Nonlinear analysis Bonding Composite materials Finite element method.
Résumé :	The nonlinear behavior of masonry arches strengthened with externally bonded composite materials is investigated. A finite-element (FE) formulation that is specially tailored for the nonlinear analysis of the strengthened arch is developed. The FE formulation takes into account material nonlinearity of the masonry construction and high-order kinematic relations for the layered element. Implementation of the above concept in the FE framework reduces the general problem to a one-dimensional nonlinear formulation in polar coordinates with a closed-form representation of the elemental Jacobian matrix (tangent stiffness). A numerical study that examines the capabilities of the model and highlights various aspects of the nonlinear behavior of the strengthened masonry arch is presented. Emphasis is placed on the unique effects near irregular points and the nonlinear evolution of these effects through the loading process. A comparison with experimental results and a discussion of the correlating aspects and the ones that designate needs of further study are also presented.
DEWEY :	620.1
ISSN :	0733-9399
En ligne :	http://ascelibrary.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JENMDT000 [...]

[article] Nonlinear analysis of masonry arches strengthened with composite materials [texte imprimé] / Dvir Elmalich, Auteur ; Oded Rabinovitch, Auteur . - pp. 996-1005.
Mécanique appliquée
Langues : Anglais (eng)
in Journal of engineering mechanics > Vol. 136 N° 8 (Août 2010) . - pp. 996-1005

Mots-clés :	Masonry Arches Nonlinear analysis Bonding Composite materials Finite element method.
Résumé :	The nonlinear behavior of masonry arches strengthened with externally bonded composite materials is investigated. A finite-element (FE) formulation that is specially tailored for the nonlinear analysis of the strengthened arch is developed. The FE formulation takes into account material nonlinearity of the masonry construction and high-order kinematic relations for the layered element. Implementation of the above concept in the FE framework reduces the general problem to a one-dimensional nonlinear formulation in polar coordinates with a closed-form representation of the elemental Jacobian matrix (tangent stiffness). A numerical study that examines the capabilities of the model and highlights various aspects of the nonlinear behavior of the strengthened masonry arch is presented. Emphasis is placed on the unique effects near irregular points and the nonlinear evolution of these effects through the loading process. A comparison with experimental results and a discussion of the correlating aspects and the ones that designate needs of further study are also presented.
DEWEY :	620.1
ISSN :	0733-9399
En ligne :	http://ascelibrary.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JENMDT000 [...]