The understanding of fatigue damage mechanisms of short fiber reinforced thermoplastics are a key issue in order to optimize material processing and propose physically based multiscale fatigue damage models. The presented work aims at a fine description of 3D damage development as observed by synchrotron X-ray microtomography. Damage processes at t...
Since a decrease of the fatigue strength may result from punching operations, this study proposes a methodology for designing punched parts against high cycle fatigue crack initiation. To reach this goal, high cycle fatigue tests are performed on different specimens configurations with either punched or polished edges. Due to punching effects, the ...
4ème éd.
7th International Conference on Fatigue Design, Fatigue Design 2017, 29-30 November 2017, Senlis, France / Selective Laser Melting (SLM) and Electron Beam Melting (EBM) are powder bed fusion processing which allows to build-up parts by successive addition of layers using 3D-CAD models. Among the advantages, are the high degree of freedom for part d...
Three different electrical generators have been designed and used to supply an exciplex dielectric barrier discharge lamp in order to elucidate the influence of each one of these supplying strategies over the system performance ; the first method consists on supplying the lamp with short bipolar voltage pulses; the second and third methods are base...
Le 12e Congrès mondial TERRA 2016 sur les architectures de terre s’est tenu à Lyon du 10 au 14 juillet 2016. Lors de cette session, plusieurs thèmes spécifiques ont été abordés: les inventaires et études des patrimoines, leur conservation et gestion, le développement local, la recherche, l’expérimentation et l’innovation, les nouvelles dynamiques, ...
We present a self-contained study of the dynamics of oscillating nanomenisci anchored on nanometric topographical defects around a cylindrical nanofiber with a radius below 100 nm. Using frequency-modulation atomic force microscopy (FM-AFM), we show that the friction coefficient surges as the contact angle is decreased. We propose a theoretical mod...
International audience
