Open AccessForensic Engineering Analysis of Failed UTV Roll Cages
Author(s) -
Olof Jacobson,
Stephen A. Batzer,
Mark Kittel,
Jesse A. Grantham,
Guy J. Barbera,
Allen Molitoris
Publication year - 2016
Publication title -
journal of the national academy of forensic engineers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.102
H-Index - 1
eISSN - 2379-3252
pISSN - 2379-3244
DOI - 10.51501/jotnafe.v33i1.30
Subject(s) - rollover (web design) , finite element method , engineering , structural engineering , dirt , forensic engineering , mechanical engineering , computer science , world wide web
Two cases were analyzed that involved pitchover/rollover accidents of the same model side by side utility terrain vehicle (UTV). In each case, the UTV ran over a bump on a dirt road and pitched over. The roll cages collapsed, and the drivers suffered significant injuries. Both roll cages collapsed in a similar manner. The design and failure modes of the roll cage structure were analyzed. Engineering analysis included dynamic analysis, laboratory testing, vehicle dynamic testing, finite element analysis, and a review of fundamental mechanical engineering design concepts. Roll cage design and applicable standards were evaluated. Reasonable alternative designs were identified and analyzed.