Academic Credentials
  • Ph.D., Materials Science and Engineering, University of California, Berkeley, 2011
  • M.S., Materials Science and Engineering, University of California, Berkeley, 2009
  • B.S., Materials Science and Engineering, Cornell University, 2005
Licenses & Certifications
  • Professional Engineer, Alabama, #34215
  • Professional Engineer Metallurgical, California, #1974
  • Professional Engineer, Georgia, #PE039760
  • Professional Engineer, Louisiana, #47019
  • Professional Engineer, North Carolina, #41149
  • Professional Engineer, New York, #98605
  • Professional Engineer Metallurgical, Texas, #122823
  • Certified Corrosion and Materials Professional (API 571)
  • Transportation Safety Institute, Transit Rail Incident Investigation Certificate
  • Transportation Workers Identification Card (TWIC)
Professional Honors
  • National Defense Science and Engineering Graduate Fellow, 2006-2009
Professional Affiliations
  • ASM
  • Failure Analysis Society – Secretary (2023 – 2024)
  • Tau Beta Pi

Dr. Lemberg is a licensed Metallurgical Engineer specializing in failure analysis, fracture mechanics, metallurgy, and materials science engineering with a particular emphasis on understanding the fracture behavior of materials.

Over the past 12 years at Exponent he has consulted on fractures, corrosion, and other metallurgical failures of a variety of large structures, including gas, water, and other chemical pipelines, storage tanks, heavy equipment, rail tank cars, building glazing systems, and on-road & off-road vehicles.  On a smaller physical scale, Dr. Lemberg has consulted on brass systems for potable water, glass cookware and drinkware, fire sprinklers, medical devices, other consumer products, as well as various other materials issues. 

Dr. Lemberg has experience diagnosing failures in both ferrous and non-ferrous metal systems, ceramics, glasses and polymeric materials. He has expertise in mechanical testing, especially in the area of crack-growth resistance testing, as well as optical and electron microscopy, metallography, and fractography.

Prior to joining Exponent, Dr. Lemberg was a graduate research assistant at the University of California, Berkeley, where he studied the fracture behavior of Mo-Si-B alloys at ambient and ultra-high (1300 °C) temperatures, the fracture behavior of carbon-nanotube-impregnated, Nb-toughened nanocrystalline alumina, and the fracture behavior of alumina/silicon nitride functionally-graded joints at elevated temperatures. Dr. Lemberg also has experience studying the fatigue properties of tree-resistant cross-linked polyethylene insulation of underground power distribution cables.