Principal Investigators 

Professor Yoni Adonyi, from Longview Texas, heads up the research program. He has also been consulting as an expert witness in structural failures for over 15 years, providing metallurgical analyses for welding and joining quality improvements, as well as product development. He has also provided short instructional courses in welding both in the United States and abroad for companies such as Square D, Thermatool Corp, US Steel, Trinity Industries, AKT Materials, LeTourneau Technologies, Caterpillar R&D, and others. His future work goals include overseeing the success of LeTourneau’s new masters program, among others. His personal website is located here: http://www.adonyiweldingconsultant.com/

Robert Warke P.E., from Longview Texas, has been a professor at LeTourneau University since 2003. He has had 15 years in the Materials Joining engineering field. His specialties include: metallurgical/mechanical failure analysis, forensic engineering, ferrous metallurgy, structural assessment and life prediction, probabilistic fracture mechanics, heat-affected zone grain coarsening, and interdisciplinary laboratory-based learning. His future work goals are presently unclear.

Laboratory Support

Martin Watson, from Rusk County, Texas, is a Lab Technician for the Materials Joining Lab. He has worked for LeTourneau University since 2007. He graduated from university of North Texas in 1976 with a major in Industrial Education. He has a teacher’s certificate and a vocational certificate and has taught at numerous high schools, Tyler Junior College, and Kilgore College. For his future goals, he hopes to finish up his career at LeTourneau University and go into full time agriculture on his ranch with his wife, Barbara.


Administrative Support

Paul Boggs, from Upshur County, Texas is the Director of LeTourneau's Office of Sponsored Programs. He has been with LeTourneau University for 10 years. He deals with pre- and post-award functions for externally funded projects such as looking for funds and writing proposals. His work experience includes 23 years in the Air Force where he gained project management experience and also time in the government where he got a hand for administration and experience dealing with red tape. His future work goals include supporting faculty in scholarly pursuits and promoting the success of LeTourneau’s engineering masters program.

Margaret Lister, from Longview, Texas is the secretary of the office of sponsored programs. She deals with post-award functions along with her secretarial duties. She has been at LeTourneau for 6 years. Previously, she worked at Eastman Chemical company for 22 years as an operating clerk where she gained ample office experience. Her future work goals include taking a LeTourneau University business or accounting course to further improve her ability to perform her job well.

Current Student Workers

Nathan Adams

Nathan Adams, from Perry, Florida, attended Tallahassee Community College before transferring to LeTourneau University. Currently having reached senior status, Nathan is slated to graduate in the spring of 2013 with a B.S in Computer Engineering. His professional goal is to eventually join the Research & Development field in the aviation industry. Nathan has been a part of the research team since summer 2012.

Michael FlorczykowskiMichael Florczykowski is currently a sophomore who is seeking his B.S in Materials Joining Engineering. Beginning in 2003, he entered the United State Army and served four years as an infantryman in the 1-36 Inf. Regiment, 1st Brigade, 1st Armored division based in Friedberg, Germany. During these four years, his brigade completed a fourteen month deployment in Iraq (2006-2007). Upon exiting the infantry, Michael moved to Longview, Texas and attended Kilgore College for an A.S in Corrosion Technology. When he obtained that degree in 2009, Michael once again served in the Army for an eight month recall term in Iraq, which lasted until August of 2010. When Michael returned to Texas, he began working for CenterPoint Energy as a pipeline corrosion technician. In May 2011, he married his wife Brittany. Three months later, he resigned from CenterPoint and returned to school. Upon completion of his BS, Michael intends to further his education with a Master’s Degree and possibly even a PhD.  Michael has been a part of the research team since summer 2012.

228375_2040338373828_1405369595_2354018_2557935_nJustin Tjahjono (Chai-oh-no), whose last name is Indonesian because his dad grew up there, was born in Tampa, Florida. He is currently a sophomore studying to obtain his B.S in Mechanical Engineering. Justin’s future career goals include potentially going into mission engineering and/or mission aviation. His personal interests include recreational sports like canoeing, shooting, hiking, paintball, air-soft, skiing and tubing, among others. He also enjoys playing football soccer as a regular sport. Justin has been working at the Materials Joining Lab since the beginning of spring 2012.


Dawit Palmer, born Vienna Austria, is of mixed Jamaican and Ethiopian heritage. He is a recent LeTourneau graduate, B.S. in Aeronautical Science. His career goals are to gain experience as an aircraft technician and eventually work  his way into management and/or Engineering. His personal interests and hobbies include music, songwriting, singing, guitars, dancing, skateboarding, basketball, football, swimming, wakeboarding, snowboarding, beach volley ball, and most any other sport. He enjoys travelling and spending time with good friends. Dawit has been actively assisting the research team in metallography and making ends meet on various other projects over the past four years.                                                                                                            

Puhao Wang, from Wuhan, China, is one of the first students in the Engineering Master’s program here at LeTourneau University. He is now a Materials Joining student scheduled to graduate in May 2014. Back in China, Puhao obtained a B.S in Mechanical Engineering. Previously, he worked as an intern in EDAG China for four months, where he designed a gripper for the sunroof of the Skoda Superb. In the future, Puhao hopes to work in the manufacturing industry, where he hopes to apply his ME knowledge as well as his MJ knowledge. Puhao has been a part of the research team since summer 2011.


481296_10150844576648786_565498785_9936351_325945351_nAllen Worcester was born and raised in Ione, California, but is now a resident of Longview. He is an Officer Candidate with the United States Navy and has been posted with LeTourneau University to finish his college education. Allen graduated in May 2012 with a degree in Electrical Engineering and is planning to finish his Masters of Science in Electrical Engineering in May 2013. After which he will ship out and join the fleet as an Engineering Officer. His thesis work is focused on microwave joining of materials, specifically for the enhanced construction of power generating thermoelectric devices. Allen is happily married to Grace Worcester and enjoys music, games, and fishing in what spare time he has.


395228_3173967425667_1159980041_33413889_809766454_nWes Alsman is currently a senior pursuing his B.S in Materials Joining Engineering and planning to graduate in May 2013. He is from Indianapolis, Indiana. Before he started working for Research & Development at LeTourneau, Wes interned at Major Tool & Machine.


CoryCory Phelps is a Materials Joining Engineering student. He is originally from Forth Worth, Texas, and before he came to LeTourneau University, Cory attended the University of Texas at Arlington, where he majored in Mechanical Engineering. In 2009, Cory transferred to LeTourneau University and eventually changed majors with intent to graduate in the Spring of 2013. The field of Materials Joining Engineering is a very exciting one that offers many opportunities, so while Cory is looking forward to entering the workplace, he has no specific career aspirations at this point in time. In the meantime, Cory intends to finish his degree strongly, growing in his relationship with God, and enjoying the wisdom and spirit of those that have been placed in his life.