Daniel B. Bullen, Ph.D., P.E.

Dr. Bullen’s areas of expertise include mechanical engineering design, product liability, materials science, materials properties for design and manufacturing, materials degradation, nuclear engineering, radioactive waste management, and radiation effects on materials. Dr. Bullen has managed multi-disciplinary projects that employed system analysis methodologies to evaluate complex events and determine failure mechanisms.

Prior to joining Exponent, Dr. Bullen was Associate Professor of Mechanical Engineering at Iowa State University where he taught undergraduate and graduate level courses in engineering design, product liability, engineering thermodynamics, materials aspects of design and manufacturing, legal and environmental considerations in design, nuclear engineering, and radioactive waste management. He served as the Nuclear Engineering Program Coordinator from 1993 to 1996 and Director of the UTR-10 Nuclear Reactor Laboratory from 1993 to 2002. As Reactor Director, he provided the interface between Iowa State University and the U.S. Nuclear Regulatory Commission (NRC) on all aspects of reactor operations, maintenance, and training. He directed the decommissioning effort for the UTR-10 facility and provided integration and oversight of the decommissioning contractor (Duke Engineering & Services, Inc.). During the period of reactor operation, he was directly responsible for the supervision of the reactor manager, senior reactor operators and licensed fuel handlers.

Previously, Dr. Bullen held academic appointments as Assistant Professor of Mechanical Engineering in the George W. Woodruff School of Mechanical Engineering at the Georgia Institute of Technology (1990–1992), and Assistant Professor of Nuclear Engineering in the Department of Nuclear Engineering at North Carolina State University (1989–1990). Prior to his academic appointments, Dr. Bullen was the President of DG Engineering, Inc. from 1988 to 1989, a Senior Engineer with Science and Engineering Associates, Inc. from 1986 to 1988, and an Engineer in the Chemistry and Materials Science Department of the Lawrence Livermore National Laboratory from 1984 to 1986.

On January 17, 1997, Dr. Bullen was appointed by President Clinton to serve as a member of the U.S. Nuclear Waste Technical Review Board (NWTRB). He was reappointed to a four-year term on May 16, 2000. The NWTRB reviews the efforts of the U.S. Department of Energy with respect to the storage, transport and disposal of spent nuclear fuel and high-level radioactive waste. The NWTRB reports to the Secretary of Energy and Congress at least two times per year. Dr. Bullen serves as the chair of the NWTRB Panel on Repository System and Integration (addressing modeling long-term repository performance), a member of the NWTRB Panel on
the Engineered System (addressing repository sub-surface and waste package design) and is a member of the NWTRB Panel on the Waste Management System (addressing surface facility design, storage and transportation issues).

• American Nuclear Society
  – Fuel Cycles & Waste Management Division (FCWMD)
  – Education & Training Division (ETD)
  – Professional Nuclear Engineering Examination Committee
  – Editorial Board Member for Nuclear Technology
• ASM International
• Minerals, Metals & Materials Society (TMS) of AIME
• American Society of Mechanical Engineers
• National Society of Professional Engineers