Understanding the impact of microstructure on thermo-mechanical behavior oxide nuclear fuels is vital to predicting their performance through multiscale models. Evaluating mechanical properties at sub-grain length scale key developing these In this work, 3D finite element (FE) models were constructed simulate micrometer-scale bending micro-cantilever beams fabricated using porous polycrystallin...

This study presents an experimental investigation of the rate-dependent mechanical properties cement paste at microscale. With use a nanoindenter, micro-cantilever beams with size 300 μm × 1650 were loaded five different strain rates from around 10−6/s to 10−2/s until failure. It is found that increasing rate, stress-strain curves show less and delayed pre-peak nonlinearity. Both flexural stren...

In the framework of Finite Fracture Mechanics theory, Coupled Criterion predicts crack onset based, totally or partially according to situation, on an energy condition. Due smallness specimens at micro-scale, this condition may become difficult be satisfied given very small volume structures, leading apparent strengthening. The aim work is analyze how answer brought by evolves when descending s...

This paper presents an analytical modeling of a piezoelectric multi-layer cantilever used as a micro-electro-mechanical-system (MEMS) chemical sensor. Selectively coated microcantilevers have been developed for highly sensitive chemical sensor applications. The proposed piezoelectric chemical sensor consists of an array of multi-layer piezoelectric cantilevers with voltage output in the millivo...

We show that theories, in which supersymmetry is broken via Scherk-Schwarz com-pactification at the weak scale, possess at least one scalar particle with Compton wavelength in the millimeter range which mediates a force with strength 1/3 of gravity. Such forces are going to be explored in upcoming experiments using micro-electromechanical systems or cantilever technology. We also present a simp...

Cantilever vibration in fluid environment is probably one of the most common Fluid Structure Interaction (FSI) problems in the field of Micro/Nano Electro Mechanical Systems (MEMS/NEMS). Usually the effect of fluid on cantilever oscillation is characterized in terms of mode resonance frequencies and quality factors (Qs), being those two physical quantities what is actually measured in the dynam...