Famous Failures: 9/11 Steel Analysis of the World Trade Center

May 14, 2021 3:11 pm

In this second installation of our Famous Failures webinar series, attendees learned about the role of heat in the failure of the steel in the World Trade Center buildings on September 11, 2001. This webinar featured Dave Kovarik, NSL Metallurgist and Failure Analyst, George Vander Voort, president of Vander Voort Consulting with 29 years of steel industry experience, and Jaren Stidd, a Metallurgical Technician for NSL.

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Famous Failures Webinar: Fatigue in Transportation

Fatigue has always been a major issue in designing for transportation, particularly airplanes. This webinar presented three airplane failures from NTSB and British Ministry reports that were the result of fatigue: the DeHavilland Comets in 1954, Aloha 243 in 1988, and Southwest 1380 in 2018. It also included a brief discussion of fatigue and a…

June 29, 2021

Famous Failures Webinar: Hydrogen Embrittlement

Hydrogen embrittlement can cause a part to fail under stresses well below the expected material strength. Plus, the phenomenon is virtually undetectable using current NDE techniques. In this “Famous Failures” webinar, NSL metallurgists Rebecca Stawovy and Ben Schmidt explore a Bell 222U Helicopter failure that occurred due to hydrogen embrittlement. They discuss which conditions can…

September 21, 2021

Famous Failures Webinar: Understanding Three Mile Island and Determining Nuclear Reactor Effects on Metals

The Three Mile Island nuclear reactor in Dauphin County, PA partially melted down on March 28, 1979. It was the worst nuclear accident in U.S. history and was a significant turning point in the global development of nuclear power. Watch this “Famous Failures” webinar from NSL to learn about the accident and how investigators used…

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