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Delamination in the interface of textile reinforced concrete layers with contact and friction

Title: Delamination in the interface of textile reinforced concrete layers with contact and friction
Author(s): J. Matheas, R. Schlebusch, B. Zastrau
Paper category : conference
Book title: ICTRC'2006 - 1st International RILEM Conference on Textile Reinforced Concrete
Editor(s): J. Hegger, W. Brameshuber and N. Will
Print-ISBN: 2-912143-97-7
e-ISBN: 2351580087
Publisher: RILEM Publications SARL
Publication year: 2006
Pages: 233 - 242
Total Pages: 10
Nb references: 8
Language: English

Abstract: This paper deals with the simulation of the load-bearing behaviour of laminated shell structures with consideration of the damage type delamination. This includes the formulation of a mechanical model in connection with the development of a finite shell element for structural analysis. The introduced multi-layer shell model is based on a geometrically nonlinear surface-related shell theory involving shear and thickness deformations. Here, the main focus is laid on the development of a so-called layer-bond model for retrofitting simulations, e. g. a concrete structure with a supplementary fitted textile reinforced concrete layer. The debonding of layers (delamination) is described by a stress criterion. The delamination is taken into account in the framework of continuum mechanics by modification of the shell kinematics. For the internal contact, a contact model taking into account the adhesion between the layers is developed to describe the load-bearing behaviour after the formation of the delamination. The application to the simulation of a slat pull-off test shows the functionality of the developed finite element.

Online publication: 2006-06-02
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2351580087.023

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