Peridynamics: A Framework for Fracture, Multiscale, and Complex Materials Modeling

Dr. Pablo Seleson
Dr. Pablo Seleson

Abstract: Fracture prediction, as well as computational modeling of mutiscale and other complex materials behavior, are ongoing challenges in materials science and computational science and engineering. Peridynamics offers a new framework to overcome these challenges through governing equations that naturally represent material discontinuities, introduce length scales, and allow for general constitutive relations. Peridynamics is a nonlocal reformulation of classical continuum mechanics suitable for material failure and damage simulation. In this presentation, we will provide an overview of peridynamics and illustrate some of its capabilities in scale-bridging and modeling of anisotropic media.

Speaker’s Bio: Dr. Pablo Seleson is a Research Scientist in the Multiscale Methods and Dynamics Group of the Mathematics in Computation Section at the Oak Ridge National Laboratory (ORNL). He joined ORNL as an Alston S. Householder Fellow in the Computer Science and Mathematics Division. Dr. Seleson received both his Bachelor's degree in Physics and in Philosophy and his Master's degree in Physics from the Hebrew University of Jerusalem in 2002 and 2006, respectively. He obtained his Ph.D. in Computational Science from Florida State University in 2010, under the advisement of Prof. Max Gunzburger. After graduation, he joined the Institute for Computational Engineering and Sciences (ICES) at The University of Texas at Austin as an ICES Postdoctoral Fellow under the supervision of Prof. J. Tinsley Oden, where he also worked in close collaboration with the Computer Science Research Institute at Sandia National Laboratories. Dr. Seleson's research focuses on multiscale materials modeling and on mathematical and computational analysis of peridynamics and related nonlocal models. Dr. Seleson is an editorial board member of the Journal of Peridynamics and Nonlocal Modeling, the Vice-Chair of the Large Scale Structural Systems and Optimal Design technical thrust area of the U.S. Association for Computational Mechanics (USACM), and a member of the Computational Mechanics Committee of the Engineering Mechanics Institute of the American Society of Civil Engineers (ASCE), and he is currently organizing the ORNL Computational Mechanics seminar series.

Last Updated: April 19, 2021 - 1:11 pm