Pipe Stress Failure and Thermo-Hydraulics Modeling and Analysis Expert for Chemical and Nuclear Plants

Technical Consultant #2126

Development of new designs meeting code requirements, failure investigation and repair, and FFS (Fitness-For-Service) assessments.
Modeling waterhammer transients for piping systems.
FEA programs, CAD programs, and fluid modeling programs.

Undisclosed Company, Vice President - Engineering

Hydraulics

Study of NRC (Nuclear Regulatory Commission) issues related to entrapped gases in liquid lines.
Developing hydraulics models and performing analysis of the effects of pump start-up and two-phase transients.
Developed a thermal-hydraulic model for short-term LOCA (Loss of Control Accidents) transients in order to develop forcing functions on reactor-internals.
Modeling blastwaves exiting high-energy line breaks in nuclear power plants.
Extensive experience modeling waterhammer transients for piping systems.

Stress

Failure investigation of one of the largest mobile cranes in the United States.
Developing the structural model for the crane failure used as a benchmark against observations of the event.

Furnace Rehabilitation

Technical lead for furnace repair damaged by over pressure events including oversight of field personnel, development of structural reinforcement, and analysis of the completed repairs.

Fitness for Service

Analyzed degraded structures and improperly fabricated structures, including buried cooling water pipe in nuclear facilities and large ship loader structures exposed to salt spray and sulfurous coke.
Analyzed poor welds and stress-corrosion cracking in weld regions with the fracture mechanics methodology in Div. 3.
Helped develop the EPRI fitness-for-service analysis methods and criteria for buried piping.

Computer Modeling

FEA programs, CAD programs, and fluid modeling programs, including dynamic time-history, elastic-plastic, cyclic loads, creep studies, and strain limit damage studies from the new Div. 2.
Designed high pressure (15,000 psi) fiber-wrapped vessels for hydrogen service.
Conducted fitness-for-service analysis on components with local thin areas in piping and weld, misalignment and lack of penetration.
Using a fully integrated approach of fluid dynamic modeling to understand potential sources of waterhammer.