His reputation for excellence is based upon many years of successful professional activities as a university professor of metallurgical engineering, assistant dean, research metallurgist, accident investigator, metal consulting engineer and metallurgical expert witness in over 1300 industrial accident investigations and failure analyses.

He has testified as a metallurgist, professional metallurgical engineer, metallurgical engineering expert witness and metallurgical consultant in more than 250 depositions, and more than 70 Federal and State court appearances for plaintiffs and defendants.  His philosophy is to investigate, as thoroughly as possible, all metallurgical and accident evidence in order to develop the most probable accident or failure scenario consistent with available physical evidence and developed data/test results.

Dr. Jerner offers personal attention as a metallurgist, metallurgical expert, engineering and metallurgical consultant to his clients with around the clock and around the country availability.

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Recent Articles and Failure Analysis (Updated 04/09/12):

Newsletter Article: Ship Board chair collapse - A chair collapsed during a meeting in the crew meeting room of a cargo ship. A worker attending the meeting and sitting in that chair was severely injured Read More

Metallurgical Failure Analysis: Teeth Failures in Ratcheting Box Wrench - Metallurgical failure analysis of a failed ratcheting box wrench was requested of J.E.I. Metallurgical, Inc., Dallas, Texas. Visual examination of the wrench revealed that a large chip had been ejected from the ratchet reverse lever. Read More

Newsletter Article: "Left at the Alter by a Really Smart Lawyer" - Over the years, I have had the opportunity to work with some really good lawyers. However, I have never had a situation arise quite like the one I am going to tell you about this month. Read More

Newsletter Article: What is Horizontal Drilling? - Most people have some sort of an idea about what happens when you drill an oil well. You dig a hole, hit oil/gas, and then retire as a multimillionaire! Yes, or at least, we wish. Read More

Newsletter Article: Underrider Trailer Guard Accidents - What in the world is an underrider, and why are they important? J.E.I. Metallurgical, Inc., just finished working on an SUV/Trailer collision involving the adequacy of the underrider guard. Read More

Metallurgical Failure Analysis: Trampoline Spring Failure - A trampoline spring was presented for metallurgical analysis. The failed trampoline spring was found on the ground beside the trampoline following the accident. Read More

Newsletter Article: "Dr. Jerner is Sleeping with Ivory - at His Wife's Suggestion!" - Wait one minute, at least read the article (and get the facts) before you broadcast the rumor. This is a perfect example of "you can't tell the book (or story) by its cover."  Read More