Lihong Zhang
University of Liège
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Publication
Featured researches published by Lihong Zhang.
THE 8TH INTERNATIONAL CONFERENCE AND WORKSHOP ON NUMERICAL SIMULATION OF 3D SHEET METAL FORMING PROCESSES (NUMISHEET 2011) | 2011
A. Ben Bettaieb; Laurent Duchene; Lihong Zhang; Anne Habraken
We present in this paper a new eight node solid-shell finite element called SSH3D (Three Dimensional Solid-Shell). This element is currently implemented in the frame of the in-house research code called LAGAMINE. Here the Enhanced Assumed Strain (EAS) technique based on the Hu-Washizu variational principle, described in [1] and [2], is used to cure the volumetric locking occurring when the material shows nearly incompressible behavior and Poisson’s thickness locking caused by the high aspect ratio of the finite element. In the proposed element, the EAS technique can be combined with the Assumed Natural Strain (ANS) [3-5] concept to treat shear locking caused by the transverse shear strain and curvature thickness locking caused by the transverse normal strain. Different schemes for the ANS concept are implemented while the number of integration points and the number of EAS modes are element parameters (the element uses four integration points in the plane of the element and at least two integration points through the thickness direction in a single element layer). These features must be adjusted by the user according to the studied process (geometry and loading) so as to avoid locking and limit the calculation time. This element was successfully tested and the numerical remedies were verified using several kinds of patch tests. A double sided contact problem is modeled in order to investigate the performance and accuracy of the developed element and to validate the suggested approach.
photonics north | 2006
Vanessa Rosso; Lihong Zhang; Fabrice Michel; Yvon Renotte; Yves Lion; Anne-Marie Habraken
An original experimental setup for shearography with metrological applications is presented herein. The simplicity and the efficiency of the setup are provided by a shearing device, a prism that separates the TE and TM polarization modes with a coating and a thin glass plate attached on its face. The temporal phase shifting method is applied through the use of a liquid crystal variable retarder. The use of this shearing device enables an in-line and almostcommon path configuration for the shearing interferometer, a path that leads to high stability of the interferometer and a low sensitivity to external disturbances. In order to prove the efficiency and the accuracy of this speckle shearing interferometer, the out-of-plane displacement derivative relative to the shearing interferometry direction of a centrally loaded steel plate has been measured by the shearographic interferometer and then compared with the out-of-plane displacement derivative computed from the displacement field provided by the finite element method. The results are in good agreement.
Archive | 2003
C. Pietrapertosa; Lihong Zhang; Anne Habraken; Jean-Pierre Jaspart
Archive | 2000
J.-F. Charles; Sylvie Castagne; Lihong Zhang; Anne Habraken; Serge Cescotto
International Journal of Material Forming | 2010
Lihong Zhang; Amine Ben Bettaieb; Anne Habraken; Laurent Duchene
Archive | 2016
Nadine Hoffmann; Ulrike Kuhlmann; Hélène Vanvinckenroye; Lihong Zhang; Jean-François Demonceau; Jean-Pierre Jaspart; Nadia Baldassino; Alessandro Banterla; Stefano Girardi; Marco Graziadei; Giacomo Roverso; Riccardo Zandonini; Benno Hoffmeister; Jonas Korndörfer; Carles Colomer Segura
Archive | 2016
Nadine Hoffmann; Ulrike Kuhlmann; Hélène Vanvinckenroye; Lihong Zhang; Marina D'Antimo; Jean-François Demonceau; Jean-Pierre Jaspart; Nadia Baldassino; Giacomo Roverso; Riccardo Zandonini; Benno Hoffmeister; Jonas Korndörfer; Carles Colomer Segura
Journal of Materials Engineering and Performance | 2013
Lihong Zhang; Anne Habraken; Amine Ben Bettaieb; Laurent Duchene
The 12th World Conference on Titanium Ti-2011 | 2011
Mohamed Ben Bettaieb; T. Van Hoof; Lihong Zhang; Hans Minnebo; Philippe Dufour; Pascal Jacques; Laurent Duchene; Anne Habraken
Archive | 2010
Laurent Duchene; Amine Ben Bettaieb; Lihong Zhang; Anne Habraken