Nov 19, 1:30 PM: GCIS E223 - Special JFI Seminar - Professor Oren Petel, Department of ...
ABSTRACT: Brain trauma from impact and/or blast and the resulting neurodegeneration has been linked to devastating health outcomes. While the use of helmets by athletes or soldiers can serve to drastically reduced the incidence of severe focal brain injuries, there continues to be a concerning level of incidence. While acute exposure to an injurious event can be detrimental to head health, there is building evidence suggesting that repeated lowâlevel exposure events are similarly of concern. Current helmet testing standards for impact events focus on the rigidâbody kinematics of head motion in the hope that they can be correlated to metrics of importance in leading injury mechanisms. These approaches typically use stateâofâtheâart computational models that attempt to link these kinematic measures back to tissue strains and deformation profiles. Despite model validation against the same sets of cadaveric impact data, models predict vastly different strain profiles within tissue. In this presentation, I will provide an overview of our broad injury biomechanics research program at Carleton. This research program makes use of a stateâofâtheâart Xâray facility, designed by my research group, to achieve continuous Xâray imaging speeds of 10,000 fps to investigate the dynamic response of cadaveric specimens, head models, and ex vivo tissue specimens as well as models for understanding impact mitigation using cellular materials and design strategies. Host: Heinrich Jaeger, 2-6074 or via email at h-jaeger@uchicago.edu. Persons with a disability who may need assistance please contact Brenda Thomas at 2-7156 or by email at bthomas@uchicago.edu.Date: November 19, 2018Time: 1:30 PM - 2:30 PM