Dave Dewees, P.E. Email & Phone Number

Liberty Corner, Nj, Us

Akron, Ohio, Us

- Led division-wide multiyear engineering standard update project -- Procedure and tool development, novel update process development and execution-- Coordinated and led sub-teams, while responsible for all project management (financials, reporting, etc.)- Developed and led multiyear Grade 91 research project which included testing, Ph.D. thesis sponsorship and industry presentations- Software development, including complex fracture mechanics and creep data analysis applications and advanced nonlinear kinematic hardening user material subroutine- Extensive Abaqus scripting using Python to automate large parametric analyses- Material property generation including tensile strength dependent carbon steel creep model- Developed formal domestic and international material specification review and property assignment procedure, applied to dozens of specifications and incorporated into engineering standards- High temperature design and analysis for Section I and Section VIII components and systems- Leadership experience including Supervisor, Design and Simulation Technology, responsible for three groups and fourteen employees

Shaker Heights, Oh, Us

Design and Fitness-For-Service analysis of key process equipment operating in high temperature, high pressure and cyclic service.- Multiple creep-fatigue assessments (design and failure analysis), including experience and expertise with EDF R5 and API 579-1/ASME FFS-1 Part 10- Computational weld residual stress analysis and computational fracture mechanics analysis to help remove conservatism from Fitness-For-Service assessments of critical process equipment containing crack-like flaws- Implementation of cyclic plasticity modeling and application to equipment subjected to hot thermal shocks- Internal software development for fatigue, finite element user material models, computational fracture mechanics and weld residual stress analysis; developed and wrote complex multiple transient fatigue production software to support nuclear Code work- Design and analysis of commercial ASME Section III and Section VIII nuclear equipment subject to complex thermal transients, including elastic-plastic fatigue analysis- Managed, as well as developed, wrote and implemented the majority of, an NQA-1 compliant quality system (manual, procedures and forms), resulting in successful completion of multiple audits.- Computational fluid dynamics analysis, including dynamic valve opening simulations for thermal shock conditions, mixing tee analysis and redesign, feed-effluent heat exchanger evaluation and header maldistribution due to solids segregation- Nonlinear explicit dynamic and coupled acoustic-structural analysis of tanks and piping subjected to adjacent blast loading- Assessment of heater tube flaw tolerance considering creep and creep crack growth utilizing weld residual stress analysis, creep modeling, and computational fracture mechanics- Instructor and co-developer for the ASME Section VIII Division 2 Design-By-Analysis E2G training course

Introduction and development of state of the art nonlinear 3D finite element (FE) multipass weld distortion analyses at employer.- Extensive user-subroutine development including *UMATs; linear and nonlinear/combined kinematic hardening coding in support of welding and creep subroutines. Special purpose and production programming (FORTRAN).- Solution of open-ended complex problems to reduce risk and support manufacturing needs:-- FEA simulation of the stress relief of a complex, complete steam generator, including 3D FE cavity radiation modeling, to assure compliance with material certifications and limit thermal gradient induced stresses.-- Thermal/Mechanical analysis of tank and piping including novel transient water level FEA fluid mixing simulation for vessel filling.-- Parametric study to generate shape factors for circular fillet welds subjected to section bending.- Advanced nonlinear finite element analysis (FEA) for government and commercial nuclear power plants, including supporting computational fluid dynamics (CFD) analysis.-- Thermal/mechanical and thermal/hydraulic analysis using Abaqus, ANSYS and Fluent.-- Elastic-plastic, modal dynamic, contact, natural frequency and buckling/collapse analyses.-- Fatigue, fracture and crack growth assessments.- Primary investigator for EPRI boiler waterwall water cannon cleaning fatigue project-- Performed 3D transient FEA including customized coding to implement moving water cannon heat sink-- Completed fatigue assessment and successfully correlated results with extensive test data and industry experience- Customer presentations to support new work and new customer development.- Recruiting, planning and mentoring for multiple co-ops/interns each year.- Mechanical Design representative to multidiscipline design team to proactively bridge gap between design and manufacture of first-of-a-kind components.

Bachelor Of Science (Bs), Mechanical Engineering

Master Of Science (M.S.), Mechanical Engineering

Bachelor Of Arts - Ba, English