Concept

Raideur (mécanique)

Publications associées (143)

Estimation of dynamically varying displacement derivatives using fringe projection technique

This paper presents a pseudo Wigner–Ville-distribution-based method in fringe projection for analyzing temporal behavior of the displacement derivative for a continuously deformed object. In the proposed method, a computer generated fringe pattern is proje ...

Optical Society of America2011

Stretching and Breaking of Ultrathin MoS2

Andras Kis, Simone Bertolazzi, Jacopo Brivio

We report on measurements of the stiffness and breaking strength of monolayer MoS2, a new semiconducting analogue of graphene. Single and bilayer MoS2 is exfoliated from bulk and transferred to a substrate containing an array of microfabricated circular ho ...

2011

Elucidating the Role of Matrix Stiffness in 3D Cell Migration and Remodeling

Matthias Lütolf, Adrian Ranga, Philipp Sebastian Lienemann, Katarzyna Mosiewicz, Martin Ehrbar

Reductionist in vitro model systems which mimic specific extracellular matrix functions in a highly controlled manner, termed artificial extracellular matrices (aECM), have increasingly been used to elucidate the role of cell-ECM interactions in regulating ...

Elsevier2011

Towards the modelling of recrystallization phenomena in multi-pass conditions: application to 304L steel

Ke Huang

Recrystallization, which can occur dynamically or statically, is an important phenomenon causing microstructure changes in deformed metals and therefore affecting the properties of the material. Even though extensive investigations have been carried out on ...

École Nationale Supérieure des Mines de Paris2011

Optimizing load transfer in multiwall nanotubes through interwall coupling: Theory and simulation

William Curtin

An analytical model is developed to determine the length scales over which load is transferred from outer to inner walls of multiwall carbon nanotubes (MWCNTs) as a function of the amount of bonding between walls. The model predicts that the characteristic ...

2010

Micromechanical parameters in bonded particle method for modelling of brittle material failure

Jian Zhao, Tohid Kazerani

Bonded particle modelling (BPM) is nowadays being extensively used for simulating brittle material failure. In BPM, material is modelled as a dense assemblage of particles (grains) connected together by contacts (cement). This sort of modelling seriously d ...

Wiley-Blackwell2010

Modal Identification and Modeling of Bearings for Very High-Speed Rotors

Grégoire Dormond

Rotor-bearing systems take an important place in engineering applications and are used in many industrial systems: gas turbines, compressors, jet engines, machine-tool spindles, etc. The spindle is an essential component of manufacturing systems involving ...

EPFL2010

Analysis of multi-stage creep and swelling oedometric tests on a French marl

Jian Zhao, Vincent Labiouse, Jean-François Mathier, Jean-Paul Dudt, Chafia Merah

The paper focuses on the delayed behaviour of marls induced by a change in stress state and by the effect of water. Seven experiments were conducted in oedometric cells on marl from the Arbus tunnel (France). The samples were subjected to a single loading ...

CRC Press/Balkema2010

Fast 3D Model Update for the Compensation of Soft Tissue Deformation in Image Guided Liver Surgery

Benoît Dagon

Today, the use of computer assistance to guide surgeon's gestures becomes increasingly common for interventions on rigid organs such as the hips and vertebrae. Guidance information is provided through the representation of the position of surgical instrume ...

EPFL2010

The effect of matrix characteristics on fibroblast proliferation in 3D gels

Matthias Lütolf, Jeffrey Alan Hubbell, Simone Rizzi, Martin Ehrbar

Engineering synthetic hydrogels on a molecular basis to introduce natural features that are important in instructing cell behavior is becoming increasingly crucial in biomaterial-based approaches for regenerative medicine and in cell biology to study cell– ...

Elsevier2010

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