David M Hallman, MS, PE Expert Witness
Curriculum Vitae

Contact Information

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Specialties & Experience

General Specialties:

Mechanical Engineering and Accident Reconstruction

Specialty Focus:

Automotive, Vehicle Fires, Crash Data, Failure Analysis, Water Loss, Metallurgy, Origin and Cause, Vehicle Mechanical, Farm Equipment, Expert Witness, CDR, EDR, Heavy Truck Data, Motorcycle Crash


Diploma – Auto Mechanics, Anoka Technical College; BSME, University of Saint Thomas; MS Materials Science & Engr., University of Minnesota

Years in Practice:


Number of Times Deposed/Testified in Last 4 Yrs:


Additional Information

David Hallman is a Licensed Professional Engineer in nine states with over twenty seven years combined experience in materials research, mechanical engineering and design, crash testing research and crash investigation and reconstruction, vehicle fire research and investigation, automotive mechanics and forensic mechanical and materials investigation. He holds degrees in mechanical engineering (BS) and materials science and engineering (MS). His extensive hands-on experience as a mechanic coupled with his two degrees makes him ideally suited for all types of failure investigations. David works on a wide variety of forensic mechanical, forensic materials and forensic metallurgical investigations. David's automotive background coupled with his two degrees makes him ideally suited for all aspects of crash investigation and reconstruction. Some of the cases investigated include a vehicle tie rod failure that triggered a cross over crash, several unintended vehicle acceleration cases and cases involving heavy truck brake failure. David has also been involved in multiple cases involving tire failure analysis. Since 2011, David has been involved with several different crash teams around the country and has been deeply involved in planning and executing instrumented vehicle crash tests. Areas of Expertise Root cause analysis of mechanical incidents and failures Water loss investigations of all types Farm equipment incident investigations Construction equipment incident investigations Other mechanical / materials incident investigations Forensic Mechanical Engineering Consulting Forensic Materials Engineering Consulting Forensic Metallurgical Consulting General Forensic Engineering Consulting Crash Investigation / Reconstruction CDR (crash data retrieval, "black box", EDR) collection and analysis Vehicle mechanical investigations Vehicle electrical investigations Vehicle fire origin and cause investigations Mechanical fire origin and cause investigations (structures)