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Anderson & Associates: About Us - Personnel
Edgar Zapata, P.E. President

Michael S. Nixon

Andres Rodela, Ph.D.

Stephen Anderson

Randy Anderson


Edgar Zapata, P.E.
President
281.481.5840 x126

jezapata@metaltest.com

Edgar Zapata has been with Anderson & Associates since 1988.  Edgar is the company president and also the fracture mechanics and fatigue testing expert with additional experience in failure analysis, stress analysis and has served as an expert witness.

He holds both bachelor and master of science degrees in mechanical engineering from Texas A&M University.  His thesis focused on fracture toughness testing.  A licensed professional engineer, he is an active member of ASM and ASTM Committee E8 on Fatigue and Fracture.

His publications include “A Metallurgical Failure Analysis of a Domestic Water Pump Impeller” in Engineering Failure Analysis, Vol. 1, and "Fatigue Cracking of a Welded Roll" Case Studies for Fatigue Education in ASTM STP 1250.


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Michael S. Nixon
Senior Metallurgist
281.481.5840 x117

mike@metaltest.com

Mike Nixon joined Anderson & Associates in 2016. He holds bachelor’s and master’s degrees in materials science from Rice University, and brings 30+ years’ experience as a hands-on metallurgist and materials development engineer in the oilfield equipment manufacturing industry. Mike’s primary role is failure analysis, having conducted hundreds of metallurgical investigations into fracture, wear, and corrosion problems. He has been awarded 5 U.S. patents, published and presented at SPE and OTC conferences, and is a member of ASM, SPE, NACE, and AWS.


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Andres Rodela, Ph.D.
Metallurgist
281.481.5840 x129

andres@metaltest.com

Andres Rodela joined Anderson & Associates in 2016. He holds a Bachelor of Science in Metallurgical and Materials Engineering from UT El Paso and a Doctor of Philosophy in Materials Science from Rice University. His dissertation focused on a novel additive manufacturing process for bulk nanostructured aluminum alloys. Andres’ primary role is the oversight of mechanical testing at Anderson & Associates and also conducts failure analysis investigations. Andres is an active member of TMS and ASM.

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Stephen Anderson
281.481.5840 x112
steve@metaltest.com

Steve Anderson has been with Anderson & Associates since 1974 working as a failure analyst and metallurgist.  Steve is a graduate of the University of Houston with a bachelor of science degree in engineering technology.  As a past president of Anderson & Associates, he continues his involvement in the company as a metallurgical consultant.


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Randy Anderson
281.481.5840 x113
randy@metaltest.com

Randy Anderson has been with Anderson & Associates since 1975.  He oversees all routine mechanical testing.  He is in charge of maintaining the quality assurance program at Anderson & Associates.


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Texas State Board of Professional Engineers. Registration # F-816
ISO 9001-2000 Certified

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Anderson & Associates Trademark Anderson & Associates, Inc.    Consulting Metallurgical Engineers & Testing Laboratory
919 FM Road 1959 Houston, TX 77034   |   Phone: 281-481-5840   |   Fax: 281-481-9115
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