Pierce D. Umberger

Pierce D. Umberger, Ph.D., P.E.

Senior Consultant

Dr. Umberger is a Senior Consultant with Engineering Systems Inc. (ESi). His background includes mechanics of composite materials, polymers (plastics), metals, applied mechanics, stress analysis, and finite element analysis (FEA). Dr. Umberger has broad experience in many types of mechanical components and systems, including automotive, rail, aviation, consumer products, design analysis, construction, and building products. His investigations include automotive, truck, and rail mechanical systems, vehicle dynamics, and medical devices.

Prior to joining ESi, Dr. Umberger conducted research including numerical and analytical modeling, as well as mechanical testing with both the Virginia Tech Materials Response Group (MRG), as well as the U.S. Army Research Lab (ARL).


  • Failure Analysis of Plastic Products Through Stress Analysis Method, ESi Plastics Failure Analysis Workshop, August 2018
  • Time-temperature Superposition and High Rate Response of Thermoplastic Composites and Constituents, Conference Proceedings of the Society for Experimental Mechanics, January 2011
  • Through Thickness Shear And Membrane Behavior Of UHMWPE Composites, Proceedings of the 42nd Annual International SAMPE Technical Conference , January 2010
  • Applications of Failure Analysis Techniques in ATV Accident Investigation, Presented at Materials Science & Technology Conference & Exhibition (MS&T 2015), Columbus, OH, October 2018
  • Failure Analysis of an Aluminum Chiller Pipe by Experimental Simulation and Stress Analysis, Journal of Failure Analysis and Prevention, Vol. 17, Issue 5, 2017.

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6230 Regency Parkway Norcross, GA 30071
  • Phone: (678) 990-3280
  • Fax: (678) 990-3285

ESi's expertise spans dozens of industries and specializations organized across several practice groups, each staffed by dozens of in-house experts with the technical knowledge, hands-on expertise, and courtroom experience required to execute projects for and with our clients from start to finish.

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