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

When:  Feb 8, 2022 from 19:00 to 21:00 (ET)
Associated with  Cleveland Chapter Community

February 2022 Online Technical Meeting
Tuesday 2/8/2022
7:00 PM

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

Guest Speaker Panel: Dave Kovarik, George Vander Voort, Melissa Gorris, and Jaren Stidd


ASM International Cleveland Chapter invites you to attend our Tuesday, February 8th meeting.  Meeting starts at 7:00 pm. 

Please register and the link will be emailed to you in the registration confirmation email.


The 20th anniversary of the collapse of buildings 1, 2, and 7 of the World Trade Center was last September.  An exhaustive examination was undertaken to determine the factors that contributed to the collapse, initially by FEMA and then by NIST. Dave Kovarik will review the non-destructive and destructive testing of samples from the NIST analysis, which were primarily from Building 1, followed by George Vander Voort’s review of the metallurgical evaluation he did for FEMA on samples from Buildings 1 and 7. Jaren Stidd will conclude the presentation with a brief discussion of the timeline of the collapse as modeled by NIST and their conclusions.


Speaker: Dave Kovarik, Metallurgist, Failure Analysis Consultant


Dave Kovarik is a failure analyst for NSL Analytical Services and enjoys investigating and solving process problems. He has worked for Stork-Herron Testing Laboratories, GE, Hubbell Power Systems, Materion, and others. He has an M.S. from CWRU.

Speaker: George Vander Voort, President at Vander Voort Consulting


George Vander Voort, president of Vander Voort Consulting and a consultant for Buehlers, has 29 years’ experience in the US steel industry with Bethlehem Steel and Carpenter Technology and 13 years with Buehler Ltd. A past president of the International Metallographic Society and past chairman of ASTM Committee E-4 on Metallography, George was the US representative to ISO on metallography for 25 years. He has six patents and over 447 publications. He was honored as the Consultant of the Decade by the International Association of Top Professionals in 2021.

Speaker: Melissa Gorris, Webinar Coordinator/Ophthalmic Market Development Director


Melissa Gorris holds the role of Ophthalmic Market Development Director at NSL Analytical.
She is the producer of NSL’s webinar series Tech Talk, in addition to many business development and marketing initiatives at the company.  From 2015- 2020, she led the Additive Manufacturing Innovation Team for NSL Analytical.  Her team focused on introducing the industry to NSL Analytical Services to prove and improve product performance and through powder re-uses studies and equipment qualifications. 
Melissa holds an MFA from UC Irvine and a BA from John Carroll.   She is a member of ASM, SME, OWA and the Additive Manufacturing Standardization Consortium.

Speaker: Jaren Stidd, Metallurgist


Jaren has his degree from The Ohio State University. He is involved in testing and evaluation of microstructures, particularly in certification to specifications, and contributes to failure analyses being performed.


Online Instructions: