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Accident Reconstruction Expert Witness

Expert Witness No.401




  • Ph.D., Virginia Polytechnic Institute and State University, 1974
  • Major: Engineering Science and Materials
  • MBA, Florida Institute of Technology, 1980
  • Major: Technology Management
  • MS, South Dakota Tech., 1971
  • Major: Structural Engineering
  • BE, Victoria Jubilee Technical Institute, 1970
  • Major: Civil Engineering
  • Registered Professional Engineer (P.E.), 1976
  • Virginia and Florida 
  • Certified Manufacturing Engineer (CmfgE), 1984-97
  • Society of Manufacturing Engineers 


  • Machinery & Equipment Failures (Skid Steer, Lawnmowers etc.)
  • Repair / Preventive Maintenance
  • Materials/Metallurgical
  • Fatigue & Corrosion
  • Slips-Trips-Falls
  • Product Failure Analysis
  • Aircraft and Engine Structural Failures
  • Mechanical Metallurgy/Materials
  • Structural Engineering
  • Welding Procedures & Welded Joints
  • Bicycle, Ladder, Slip & Fall
  • Accident Reconstruction
  • Auto Accident Investigation
  • Tire Failure
  • Construction Defect Analysis
  • Electrical Failures
  • Batteries, Motors & Generators


3/81 – Current, Independent Materials/Forensics/Structural Engineering Consultant: Failure analysis consultant on civil engineering, material selection, product liability and product development. Expertise in fracture mechanics, mechanical and metallurgical tests and analysis techniques. Over 300+ failures investigated including automotive bumpers, airplane and engine component failures, automotive axle to frame weld joints. Aluminum, titanium, polymers, ceramics and composite materials failure analysis. Internal company consultations on life assessment and durability of prototype components.

6/96 – Current, Director/Principal, Global Technology Experts, Marietta, GA 30339: Forensics/Materials/Metallurgical/Mechanical/Structural-Engineering consultant. Accident reconstruction, product liability, materials and mechanical technology research, tech transfer and commercialization.

8/95-5/96 – Chief, Technology Integration Allison Engine Company/Rolls Royce, Aerospace group, Indianapolis, IN 46206-0420: Facilitated opportunities for  integrating Allison engine company technical activities with the Rolls Royce group of companies.

7/83-8/95 – Sr. Manager, Materials and Mechanical Technologies, Rolls Royce Aerospace group, Atlanta, GA. 30339: Advanced materials component development programs, structural and durability analysis, life cycle cost. Project manager on number of coatings, fracture behavior of super alloys, polymer and ceramics composite components. Represented company on numerous professional national and international organizations.

11/78-7/83 – Group Leader, Materials Behavior Group Technologies, Pratt and Whitney Aircraft, West Palm Beach, FL 33402: Principal Investigator on several NASA and DOD funded programs on fatigue and fracture behavior of titanium and super alloys. Structural assessment and  durability assessment of engine components.

10/74-11/78 – Senior Engineer, Engineering Product Design Division, Alcoa Technical Center, Pittsburgh, PA. 15230: Supervised fatigue, fracture and structural testing lab. Developed  testing scheme for automotive aluminum bumpers to relate their cracking with   alloy properties. Member of team for “the development of fatigue/fracture resistant aluminum alloys.”

6/71-10/74 – Instructor, Engineering Science and Materials, Virginia Polytechnic Institute and State University, Blacksburg, VA. 24060: Taught courses on engineering statistics and strength of materials. Research on “Accelerated testing of polymer composites”. Participated on “Assessment of crash worthiness of automobiles program” funded by DOE.



  • Elected Fellow, ASM International (American Society of Metals) 1996
  • Who’s Who in America, 1993-97
  • R. D. Sethna Graduate Scholarship, 1971.
  • Sigma Xi Research Society of America, 1975
  • Who’s Who in Engineering, 1992-97
  • Best Paper Award “Short Crack growth Behavior” AIAA , 1986


  • Chairman, 1994 SAMPE Conference, (Society for Advancement of Material and Process Engineering)
  • Sr. Director, SAMPE International Society, 1996-97
  • Chairman, Atlanta ASM and SAMPE 1992-94
  • Chairman, fracture/fatigue committee of SEM, 1990
  • Member, American Society of Testing and Materials, 1976-97,
  • Sr. Member, Society of Manufacturing Engineers, 1991-97
  • Member, American Forensic Society, 1997
  • Reviewer, ASTM, AIAA, SAMPE, ASM Journals
  • Member, American Ceramic Society
  • Member, Atlanta Claims Association and Southern Loss Association


26 presentations at national/international meetings Contributed to over 37 publications in journals, over 50 company internal reports.


  • Editorial Board of “Materials and Process” journal 1994-96
  • Reviewer, American Society of Testing & Materials.



  • Numerous short courses and seminars on manufacturing technologies, material defect analysis, damage tolerant approaches to component design.
  • ABA conference on “Expert testimony, technology and law”, Washington DC. 1997


  • Toastmasters International (78-95)
  • Vinings Club, GA. Social Committee (92-95)
  • Advisor, Junior Achievement Program (81-83)
  • Chairman, International Students Association, Virginia Tech (72-73)
  • Virginia Tech. Alumni Association. (94-97)
  • Board of Director, Metro Atlanta GYSTC (non profit)
  • Advisory Board, NASA Space Grant Consortium-Georgia
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