André P. Vieira

activity

20062008

most citedCorrelation amplitude and entanglement entropy in random spin chains

62 citations · 91 across the 3 of their papers we have counts for

collaborators

Showing cond-mat.mtrl-sciShow all

2 papers · 1 filter

cond-mat.mtrl-sci2008★ 29 cited

Subcritical crack growth: the microscopic origin of Paris's law

André P. Vieira, José S. Andrade, Hans J. Herrmann

We investigate the origin of Paris's law, which states that the velocity of a crack at subcritical load grows like a power law, $d a / d t \sim (Δ K)^{m}$ , where $Δ K$ is the stress inte…

cond-mat.mtrl-sci2006

Characterization of welding defects by fractal analysis of ultrasonic signals

A. P. Vieira, E. P. de Moura, L. L. Goncalves +1

In this work we apply tools developed for the study of fractal properties of time series to the problem of classifying defects in welding joints probed by ultrasonic tecniques. We…