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JOHNNY WACLAWCZYK

Mr. Waclawczyk's career has focused on design and analysis of structures subjected to blast loads since 1991. He has designed complete blast resistant buildings and specific building retrofits to mitigate the effects of explosions. These designs include roof systems, wall systems (both load bearing and non load bearing), and doors for a variety of facilities including, commercial buildings, chemical plant control rooms, high explosives containment structures, and blast chambers. He has also designed and overseen construction/fabrication of blast containment chambers, fragment shields, and barriers. Mr. Waclawczyk is familiar with recognized blast design documents such as TM5 1300, Structures to Resist the Effects of Accidental Explosions, DOE/TIC-1128, A Manual for the Prediction of Blast and Fragment Loads on Structures, ISC Security Criteria, GSA Security Reference Manual (Blast Design & Assessment Guidelines), Safety Guide 22, and ASCE Design of Blast Resistant Buildings in Petrochemical Facilities.

Mr. Waclawczyk has used state of the art finite element codes to analyze the nonlinear response of structures under blast loads. He has developed 2-D and 3-D models for analysis of building components, structural frames, and blast containment vessels utilizing shell elements, solids, and full contact impact surfaces. Mr. Waclawczyk is familiar with multiple shock and gas loading prediction on structures due to detonation of high explosives, unconfined vapor cloud explosions, bursting pressure vessels, and venting dust explosions. He has used multiple industry accepted codes to predict the incident and reflected pressure waves for use in the design and analysis of various structures. Mr. Waclawczyk is also experienced in terrorist threat scenario evaluation and consequence analyses. He has been involved in numerous projects to predict site-wide structural damage due to possible terrorist explosion threats. He also has served as lead structural engineer for entire facility terrorist threat assessments.

Mr. Waclawczyk has used his knowledge of blast phenomena and the effects of blasts on structures in support of accident investigations. The focus of these investigations was to determine the explosion energy, source location, and probable causes of initiation. These accidents have included unconfined vapor cloud explosions and bursting pressure vessels.

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