T0
Neutral Party Lab Testing
Reference temperature determination for master-curve based transition temperature projections per ASTM E-1921
Engineering Consultants
Edgar Zapata, P.E.
President
Edgar Zapata has been with Anderson & Associates since 1988. Edgar is the company president and oversees the fracture mechanics and fatigue testing. He has been performing metallurgical failure analysis for over 30 years 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 ASM Houston chapter past chairman and is active in 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.
Spencer Gambrell, EIT
Testing Engineer
Spencer is a licensed EIT (Lic #83312) and holds a Bachelor of Science degree from LeTourneau University in engineering with a concentration in biomedical engineering and a minor in computer science. Spencer oversees the advanced materials testing department and is in charge of fracture toughness, fatigue, and true stress-true strain material testing. He has designed and conducted product tests and manages the programming and operation of the electric discharge machining (EDM) equipment. Spencer also assists with programming VBA and macros for data analysis.
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