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.
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An Efficient Adaptive Procedure for Three-Dimensional Fragmentation Simulations
Anna Pandolfi,Michael Ortiz +1 more
TL;DR: The data structures and methods presented here are straightforward to implement, and enable the efficient tracking of complex fracture and fragmentation processes, and are demonstrated with the aid of two examples of application to dynamic fracture.
Journal ArticleDOI
An Efficient Adaptive Procedure for Three-Dimensional Fragmentation Simulations
Anna Pandolfi,Michael Ortiz +1 more
TL;DR: In this article, the authors present a set of data structures and a collection of methods for constructing and updating the structures, designed to support the use of cohesive elements in simulations of fracture and fragmentation.
Journal ArticleDOI
Biomechanics of traumatic brain injury
TL;DR: A biomechanical model for traumatic brain injury and soft tissue damage is presented and future directions of this work, relating mechanical damage and physiological brain dysfunction, and application to relevant medical and engineering problems are discussed.
Journal ArticleDOI
Data Driven Computing with noisy material data sets
TL;DR: A Data Driven Computing paradigm is formulated that generalizes distance-minimizing Data DriVEN Computing and is robust with respect to outliers and assigns data points a variable relevance depending on distance to the solution and on maximum-entropy estimation.
Journal ArticleDOI
Nonsmooth Lagrangian Mechanics and Variational Collision Integrators
TL;DR: The theory of smooth Lagrangian mechanics is extended to a nonsmooth context appropriate for colli- sions, and it is shown in what sense the system is symplectic and satisfies a Noether-style momentum conservation theorem.