Publications

Mechanics of materials

γ′-Rafting mechanisms under complex mechanical stress state in Ni-based single crystalline superalloys

The morphological evolution of the γ′ precipitates has been studied in a second generation nickel-based single crystal superalloy during isothermal creep straining at 1093 °C under multiaxial stress state. For this purpose, a specific V-shaped…

Vincenzo Caccuri, Jonathan Cormier, Rodrigue Desmorat

Materials & Design - 2017

Mechanics of materials

A tensorial thermodynamic framework to account for the γ ' rafting in nickel-based single crystal superalloys

A new model is developed in order to account for the effect of microstructural degradation (i.e. precipitate-directional-coarsening) on the viscoplastic behavior of single crystal superalloys under high temperature exposure. Microstructural changes…

Rodrigue Desmorat, A. Mattiello, J. Cormier

International Journal of Plasticity - 2017

Engineering Sciences

Miniaturization of Compensational Spring System using the Highly Nonlinear Curved beams in MEMS

In this work an approach to minimize a non-linear system with a flat region in the force-displacement characteristics is studied. Design, simulation, fabrication and characterization of the initial system with the linear compensational spring and…

Bogdan Vysotskyi, Denis Aubry, Philippe Gaucher, Elie Lefeuvre, Xavier Le Roux, Fabien Parrain

28th Micromechanics and Microsystems Europe Workshop - 2017

Engineering Sciences

Ground motion simulations of great earthquakes on the Alpine Fault: effect of hypocentre location and comparison with empirical modelling

Brendon Bradley, Sung Bae, Viktor Polak, Robin Lee, Ethan Thomson, Karim Tarbali

New Zealand Journal of Geology and Geophysics - 2017

Materials Science

Thermo-mechanical behavior of clays explained from the nanoscale

Laurent Brochard, Tulio Honorio, Matthieu Vandamme, Ioannis Stefanou, Siavash Ghabezloo, Michel Bornert, Michaël Peigney

6th International Conference on Coupled THMC Processes in Geosystems - 2017

Mechanics

New LATIN-PGD technique for fatigue loading

Mainak Bhattacharyya, Amélie Fau, Udo Nackenhorst, David Néron, Pierre Ladevèze

ECCOMAS 2016 - 7th European Congress on Computational Methods in Applied Sciences and Engineering - 2016

Mechanics of materials

Anisotropic damage modeling of concrete materials

An anisotropic damage model is proposed for concrete materials. As required by thermodynamics a single damage variable, tensorial, is considered for any loading: as a state variable it represents the micro-cracking pattern whatever the loading sign…

Rodrigue Desmorat

International Journal of Damage Mechanics - 2016

Engineering Sciences

Design and Simulation of Bistable Microsystem with Frequency-up conversion effect for Electrostatic Energy Harvesting

This work is dedicated for the study of energy harvesters implemented in form of microelectromechanical systems (MEMS) used to harvest ambient vibrations for powering standalone electronic devices. The previewed application is to power a leadless…

Bogdan Vysotsky, Fabien Parrain, Elie Lefeuvre, Xavier Leroux, D. Aubry, Philippe Gaucher

Journal of Physics: Conference Series - 2016

Engineering Sciences

The Constitutive Relation Error method: a general verification tool

This chapter reviews the Constitutive Relation Error method as a general verification tool which is very suitable to compute strict and effective error bounds for linear and more generally convex Structural Mechanics problems. The review is focused…

Pierre Ladevèze, Ludovic Chamoin

Ludovic Chamoin - 2016

Engineering Sciences

The effect of causal parameter bounds in PSHA-based ground motion selection

Karim Tarbali, Brendon Bradley

EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS - 2016