Homepage of Dr. Bart F. Zalewski, Ph.D.

Łabędź (Swan) Coat of Arms

Dr. Bart F. Zalewski is a NASA contractor, principal mechanical engineer at ZIN Technologies, Inc, inventor, martial artist, and former professor and entrepreneur. He has received a B.S. and M.S. degrees under Professor Arthur A. Huckelbridge with a focus in structural engineering in May 2005 from Case Western Reserve University (CWRU). His M.S. thesis dealt with dynamic load effects on bridge-mounted structures. He received his Ph.D. from Case Western Reserve University in August 2008 with a focus in computational mechanics under Professor Robert L. Mullen. His Ph.D. dissertation dealt with discretization errors in Boundary Element Method (BEM). He is also an alumnus of the Center for Reliable Engineering Computing (REC) and a member of the Quality and Robust Design Committee of SAE. From 2010 to 2013 he served as an Adjunct Assistant Professor at the Department of Civil and Environmental Engineering at CWRU. From 2013 to 2018 he was a chief engineer in a company he co-founded, ZalNear Space, LLC, to develop new technologies for near space flights. In 2017, he won a prestigious NASA Trailblazer Award for developing the fastest vacuum stage separation software in the world enabling NASA to conduct extensive fairing separation trade studies.

About Me:

I was born in Gdynia and spent my first four years growing up in Sopot, a Baltic seaside resort city known for its beauty and charm. At the age of four, I moved to the neighboring city of Gdansk, the birthplace of Solidarnosc movement, which is rich in history, various forms of architecture, and home to some of the record holding structures such as Bazylika Mariacka and Zuraw. At the age of twelve, I moved to Cleveland, which is Gdansk’s sister city, a beautiful city on the shore of Lake Erie that is known as the Comeback City. Following my father's footsteps, I studied civil engineering and am currently working on design and development of new technologies for the next generation NASA heavy lift vehicle and novel near space vehicle. I've been practicing martial arts for over nine years including: Catch Wrestling (Hooker), Gracie Jiu Jitsu (White Belt), Folkstyle Wrestling (Varsity), Jujutsu (Green Belt), Goshin Jutsu Karate (Yellow Belt), and Tai Chi (Level 1). I am a 2016 NAGA Ohio Light Heavyweight Grappling Champion. My great-great-grandfather, Adam Carl Kupperschmitt, was a famous Sopot architect; my great-granduncle, Commander Wladyslaw Salamon, was commander of ORP Sep during WWII; and my uncle, High Chief Dr. Raymond Dokpesi, is a media businessman. My grandfather, Edmund Steinke, was an amateur Bantamweight boxer.

Professional Interests:

Dr. Zalewski’s interests include:

- Computational Mechanics

- Finite Element Methods (FEM)

- Boundary Element Methods (BEM)

- Mesh Free Methods (MFM)

- Finite Difference Methods (FDM)

- Composite Structures

- Near Space Technology

- Acoustic Attenuation Techniques

- Separation Analysis

- Interval Analysis

- Fuzzy Analysis

- Reliable Numerical Methods

Dr. Zalewski has developed the first method to provide guaranteed bounds on the real discretization errors, not on the estimates, using a set weak form, or possibilistic weak form. He is also one of the pioneers of the interval boundary element method (IBEM) and fuzzy boundary element method (FBEM). Dr. Zalewski developed interval kernel splitting technique (IKST), which encloses the true solution to Fredholm equations of the first and second kind. He has received numerous awards and received recognition from NASA for his support and contribution to the advanced composites technology (ACT) team and Ares V engineering team. He is an author of several peer reviewed journals and conference publications.

Dr. Zalewski researched techniques for solving improper interval linear system of equations and providing exact bounds for the inner enclosure in a weak sense. He also researched the usage of improper intervals for providing inner bounds on the local discretization error for boundary element methods. Other research topics include material uncertainty for plane strain problems and thermal conduction in boundary element method, local discretization error enclosure for finite element method, and local discretization error for a residual interval boundary element method (RIBEM).

As part of ZalNear Space, Dr. Zalewski researched and developed new technologies for near space vehicle. He performed structural design/analysis, mechanical design, and trajectory analysis, as well as schedule, cost, and requirement development. He invented, co-developed, and successfully tested the Passive Parachute Deployment System (PPDS).

Currently, Dr. Zalewski is working on NASA's Space Launch System (SLS) project which will allow for exploration into deep space. His work includes composite structure analysis and optimization of the payload fairing, its separation, and acoustic attenuation. He invented Stitched Bonded Joint (SBJ) for cured composite panels, Reconfigurable Structural Joint, Deployable Structural Joint, Tuned Chamber Core (TCC) acoustic treatment, Chamber Attenuator for Low Frequencies (CALF), Equidistant Chamber Attenuator for Low Frequencies (eCALF), Layered Equidistant Chamber Attenuator for Low Frequencies (LeCALF), Wedge Equidistant Chamber Attenuator for Low Frequencies (WeCALF), and Optimized Additive Manufacturing Process. He also developed SepTool©, a software for evaluating separation clearance that combines fairing flexible dynamics with rigid body dynamics of the vehicle. SepTool is used by NASA to analyze SLS Universal Stage Adapter and SLS Payload Fairing separation clearance.

Bart innovated Cleveland Calflock submission hold, which is a modified Ashi Zaru Leglock, targetting BL-57 and BL-58 pressure points. He is currently privately teaching Cleveland Catch Wrestling, which is a variation of Catch Wresting for a street fight.

Resume: Curriculum Vitae

IBEM Discretiztion Error Analysis:

Babuska Problem

Interval and Computational Mechanics Links:

Professor Robert L. Mullen; Professor Rafi L. Muhanna; Professor Mehdi Modares

Numerical Methods Links:

Professor Ivo Babuska; Professor Carlos Brebbia; Professor Ted Belytschko; Professor Olgierd Zienkiewicz

Professor J. Tinsley Oden; Professor Thomas J. R. Hughes

Interval Methods Links:

Professor Arnold Neumaier; Professor Vladik Kreinovich; Professor Andzej Pownuk

Professor Siegfried M. Rump



Bridge Work

Recent Peer Reviewed Publications:

Zalewski, B. F., Kosareo, D. N, and Dial, W. B.

Fairing Separation Analysis using SepTOOL©

NASA/CR-2015-218467, 2015

Zalewski, B. F., Dial, W. B., Funk, J., and Previte, M. A.

Reconfigurable Structural Joint

NASA Tech Briefs, Vol. (38)5, pp. 52-53, 2014

Pineda, E. J., Myers, D. E., Kosareo, D. N., Zalewski, B. F., and Dixon, G. D.

Buckling Testing and Analysis of Honeycomb Sandwich Panel Arc Segments of Full-Scale Fairing Barrel – Part 2: 6-ply In-Autoclave Facesheets

NASA/TM-2013-217822/PART2, 2013

Myers, D. E., Pineda, E. J., Zalewski, B. F., Kosareo, D. N., and Kellas, S.

Buckling Testing and Analysis of Honeycomb Sandwich Panel Arc Segments of Full-Scale Fairing Barrel – Part 1: 8-ply In-Autoclave Facesheets

NASA/TM-2013-217822/PART1, 2013

Zalewski, B. F., Dial, W. B., and Bednarcyk, B. A.

Methods for Assessing Honeycomb Sandwich Panel Wrinkling Failures

NASA/TM-2012-217697, 2012


My math view on Parallel Universe

My math view on Electricity and Mass 1 Electricity and Mass 2

Academic Lineage:

Professor Ted B. Belytschko -> Professor Robert L. Mullen -> Doctor Bart F. Zalewski

Professor Ray W. Clough -> Professor Arthur A. Huckelbridge -> Doctor Bart F. Zalewski

Martial Arts Lineage:

Grandmaster Hélio Gracie -> Professor Ryron Gracie/Professor Rener Gracie -> Bart F. Zalewski

Grandmaster Gerard Durant -> Master Ed Reid -> Bart F. Zalewski

Grandmaster Kou Lien Ling -> Master David-Dorian Ross -> Bart F. Zalewski

Coach Paul Cunningham -> Bart F. Zalewski

Robert Brown -> Bart F. Zalewski