2026-09-21T23:34:56Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/109522 2023-07-11 col_2142_5131 col_2142_14787 com_2142_5130 com_2142_9630 com_2142_234

Thesis Glumac, Nick G Krier, Herman Butler, Austin Josiah 2021-03-05T21:42:48Z 2021-03-05T21:42:48Z 2023-03-05T21:43:00Z 2020-12-04 2020-12 The most prevalent injuries incurred by today’s warfighters are traumatic brain injuries caused by exposure to explosively generated blast waves. The protection of soldiers is paramount, so research into the effect of blast waves on the brain and body has been ongoing so that more effective protective equipment can be created. Historically, this research has been done by subjecting live rodents to blast waves and analyzing them post-mortem. There are many drawbacks to live animal testing that make a surrogate test article an attractive prospect. The goals of the current work are to 1.) develop a bio-fidelic instrumented surrogate rat model for use in blast testing and 2.) validate a computational model’s ability to accurately predict the propagation of blast waves throughout the surrogate rat. To validate the computational model, experiments have been performed in which the pressure-time history is measured at locations inside simplified rat surrogates. These simplified surrogates include spheres made from tissue substitute, multi-material spheres with an inner core of tissue substitute and an outer shell of bone substitute, and ogive shaped articles made from tissue simulant. For simple shapes, the computational model has been shown to match experimental results reasonably well. More complex shapes are planned to put more strain on the computational model for stronger validation. Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2022-12-01 The student, Austin Butler, accepted the attached license on 2020-12-02 at 20:31. The student, Austin Butler, submitted this Thesis for approval on 2020-12-03 at 12:10. This Thesis was approved for publication on 2020-12-04 at 15:59. DSpace SAF Submission Ingestion Package generated from Vireo submission #16048 on 2021-03-04 at 16:20:25 Made available in DSpace on 2021-03-05T21:42:48Z (GMT). No. of bitstreams: 3 BUTLER-THESIS-2020.pdf: 3819322 bytes, checksum: 2f1bdf9a485022fb21fca5de52a5ad4b (MD5) Butler_Austin_MS_Thesis_Grad_Revised.pdf.docx: 75183224 bytes, checksum: da065bb9d9c7d58ddc000527400a1662 (MD5) LICENSE.txt: 4210 bytes, checksum: f41b46e8e0289c6afe73ca11628afbbb (MD5) Previous issue date: 2020-12-04 Embargo set by: Seth Robbins for item 117227 Lift date: 2023-03-05T21:43:00Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system U of I Only application/pdf http://hdl.handle.net/2142/109522 en Copyright 2020 Austin Josiah Butler blast wave explosives pressure measurement rodent testing An investigation of blast wave transmission through rodent simulants text Mechanical Sci & Engineering Mechanical Engineering University of Illinois at Urbana-Champaign Thesis M.S.