Ronald J. Parrington

Ronald J. Parrington, P.E., FASM

Senior Managing Consultant

Director of Industrial Services

Mr. Ronald Parrington specializes in the areas of materials testing, corrosion, welding, and failure analysis. His 30 years of experience includes managing technical staff and testing laboratories/departments, expert witness services, legal and forensic services, new product development and testing, developing and executing test programs, performing material assessments, providing technical assessments, solving materials problems, as well as performing failure analysis.

Prior to joining ESi, Mr. Parrington was President of IMR Test Labs, a material testing laboratory located in Lansing, New York. He was responsible for managing operations for commercial materials and product testing laboratories in the United States and Asia, as well as leading their expert services. Previous to that time, his experience includes managing and providing technical services at Dresser-Rand, Lockheed Martin, and General Electric Company.


  • Hojack Swing Bridge, MST&T, October 2016
  • Knit Line Failure of a Glass-Filled Polysulfone Pipe Fitting and Fractographic Comparison to Laboratory-Produced Fractures, MST&T, July 2016
  • Environmental Stress Cracking of PVC Fittings in a Refrigerated System, MS&T Conference, October 2015
  • Hydrogen-Oxygen Embrittlement of Beryllium Copper Nozzles, MS&T Conference, October 2015
  • Visual Examination of Failures, 9th International Materials Technology Conference & Exhibition, May 2014
  • Catastrophic Failure of Fiber-Reinforced, Thermoplastic Lawnmower Wheels, ANTEC, April 2014
  • Case Histories of Monotonic Overload Fractures in Metals, MS&T Conference, October 2012
  • PVC Water Line Failure Analysis, MS&T Conference, October 2012
  • Catastrophic Failure of Fiber Reinforced Polypropylene Lawnmower Wheels, MS&T Conference, October 2011
  • Austenitic Stainless Steels + Chlorides = Corrosion Failures, MS&T Conference, October 2010
  • See CV for further publications

Home Office


2355 Polaris Lane North Suite 120 Plymouth, MN 55447-4447
  • Phone: (763) 557-9090
  • Fax: (763) 557-0710

Project Experience

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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