SEFA, Inc.


Stephen M. Arndt,  founder and president of SEFA, Inc., graduated from the University of Arizona with a B.S. degree in Aerospace Engineering in 1984.  He spent the first eight years of his professional career working in the field of aviation crash safety and aircrew protection as a research engineer at Simula, Inc.  Mr. Arndt has continued to work in the area of crash safety with a switch to the automotive field, first at Arndt & Associates, Ltd. in 1992 and now at SEFA, Inc., which he formed in 1998. Mr. Arndt specializes in vehicle dynamics (stability and control) and accident reconstruction, offering expert testimony in both.  He has conducted numerous full scale vehicle handling tests to evaluate stability and control issues.  Research areas include evaluating the handling characteristics of vehicles when they experience tire failures with an emphasis on tire tread separations. Other areas of vehicle dynamics research include Electronic Stability Control (ESC) effectiveness, rollover propensity, and rollover accident reconstruction.  Mr. Arndt has participated in full scale testing of numerous vehicles, including various size SUV’s, trucks, vans, minivans, and sedans. His research has led to the publication of numerous peer reviewed technical papers.  In addition, Mr. Arndt has been an invited lecturer on his research topics.  He currently is a member of the Society of Automotive Engineers (SAE), the Association for the Advancement of Automotive Medicine (AAAM), the American Society of Mechanical Engineers (ASME), and the National Association of Professional Accident Reconstruction Specialists (NAPARS). 

Safety Engineering & Forensic Analysis (SEFA), INC.,a Phoenix, Arizona corporation, was formed in 1998 by Stephen M. Arndt. SEFA provides consulting services to the legal community on automotive crash safety issues. SEFA provides accident investigation and analysis of automotive collisions, with expertise in accident reconstruction, vehicle dynamics, and vehicle crashworthiness. SEFA also offers vehicle testing, having performed full scale handling tests on over 40 vehicles to evaluate their stability and control under various configuration and loading conditions.