G. Mark Tanner, P.E.
Principal Engineer

Mr. Tanner is responsible for mechanical analyses, metallurgical examinations, and/or failure analyses on industrial equipment including turbines, pumps, boilers and auxiliaries, gears, fasteners, and pressure vessels. Mr. Tanner conducts laboratory and onsite failure analyses on a variety of components at chemical, petrochemical, pulp and paper, utility, heavy manufacturing, food, and commercial establishments.

Mr. Tanner applies an understanding of mechanical engineering, metallurgy, and mechanical behavior of materials to failure investigations and design reviews by using fracture mechanics to predict the remaining safe life of a component or structure using fatigue, stress corrosion, or creep crack growth data. He evaluates stresses in components under simple static conditions to more complex dynamic conditions.

Mr. Tanner evaluates industrial equipment to assess risk. He identifies and quantifies risk associated with the maintenance, operation, inspection, monitoring, history, and engineering practices applied to equipment. He has worked on various projects with his responsibilities ranging from task lead to project director.

Mr. Tanner has written numerous articles on failure analysis and risk assessment.