M
Michael Ortiz
Researcher at California Institute of Technology
Publications - 489
Citations - 34601
Michael Ortiz is an academic researcher from California Institute of Technology. The author has contributed to research in topics: Finite element method & Dislocation. The author has an hindex of 87, co-authored 467 publications receiving 31582 citations. Previous affiliations of Michael Ortiz include Complutense University of Madrid & University of Seville.
Papers
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Proceedings Article
On the Way to Temporal OBDA Systems (short paper)
TL;DR: In this paper, the authors identify a number of key problems, which have not been addressed suitably by previous works, such as the ability to deal with heterogeneous representations of time, the ability of dealing with temporal inconsistencies, either due to missing value samples or conflicting values for a given time point and finally, a suitable query language, where they in particular want compositionality.
Journal ArticleDOI
Functional optimality of the sulcus pattern of the human brain.
S. Heyden,Michael Ortiz +1 more
TL;DR: In this article, the authors developed a mathematical model of information transmission across the biological neural network of the human brain and showed that the introduction of sulci or cuts in an otherwise smooth domain indeed increases the overall transmission rate.
Book Chapter
Coupled thermoelastic simulation of nanovoid cavitation by dislocation emission at finite temperature
TL;DR: In this article, the early onset of void growth by dislocation emission at finite temperature in a single crystal of copper under uniaxial loading conditions using the HotQC method was studied.
Book ChapterDOI
Discrete Dislocation Dynamics in Crystals
TL;DR: In this article, the authors present a study of 3D dislocation dynamics in BCCs based on discrete crystal elasticity, using ideas borrowed from discrete differential calculus and algebraic geometry to construct a mechanics of discrete lattices.
A Cohesive Model for Fatigue Crack
Anna Pandolfi,Michael Ortiz +1 more
TL;DR: In this paper, the authors describe fatigue processes within the framework of cohesive theories offracture, and assume that the unloading-reloadingresponse of the cohesive model degrades with the number of cycles and assume thereloading stiffness as damage variable.