Browsing by Author "Pierron, Olivier N."

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Comparison of the low and high/very high cycle fatigue behaviors in Ni microbeams under bending

Barrios, Alejandro; Kakandar, Ebiakpo; Castelluccio, Gustavo M.; Pierron, Olivier N. (Springer, 2021-02-16)

The present work demonstrates a micromechanical technique to investigate the low cycle fatigue (LCF) behavior of Ni microbeams under fully reversed bending loadings. The technique extends the range of measured fatigue lives ...
A computational and experimental comparison on the nucleation of fatigue cracks in statistical volume elements

Kakandar, Ebiakpo; Barrios, Alejandro; Michler, Johann; Maeder, Xavier; Pierron, Olivier N.; Castelluccio, Gustavo M. (Elsevier, 2020-04-05)

The failure of micron-scale metallic components presents significant variability as a result of their size being comparable to microstructural length scales. Indeed, these components do not represent the bulk of the material ...
Quantitative in situ SEM high cycle fatigue: The critical role of oxygen on nanoscale-void-controlled nucleation and propagation of small cracks in Ni microbeams

Barrios, Alejandro; Gupta, Saurabh; Castelluccio, Gustavo M.; Pierron, Olivier N. (2018-02-28)

This Letter presents a quantitative in situ scanning electron microscope (SEM) nanoscale high and very high cycle fatigue (HCF/VHCF) investigation of Ni microbeams under bending, using a MEMS microresonator as an integrated ...

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