Mr. Wills addresses issues related to failure and nonperformance analysis of engineered materials including metals, glass, polymers, and composites. He has metallurgical and materials engineering experience, which includes corrosion analysis. Mr. Wills performs fracture analysis of materials using scanning electron microscopy, metallography, fractography, and photography. Other areas of expertise include fabrication and machining methods, tube and heat exchanger fabrication, and prototype development. Mr. Wills has experience with welding and cutting methods and performs weld inspections. He analyzes surface coating applications and properties. He conducts fire investigations. He also has particular experience with aluminum process metallurgy; aluminum ingot casting technology and machinery, and aluminum extrusion machinery, tooling, dies, and materials. In the area of accident investigation, Mr. Wills addresses industrial and marine equipment failures, slip and fall issues, boating, and marine accidents. Mr. Wills is trained in underwater inspection and photography.
Select Reports
Wills DP. Investigation of a jacketed stainless steel pipe failure at Welllman, Inc. Exponent Failure Analysis Associates, Inc., Report, March 2007.
Wills DP. Investigation of a failed CPVC fire sprinkler pipe at the Cipraini Condo. Exponent Failure Analysis Associates, Inc., Report, January 2007.
Wills DP. Sacajawea-Fort Lauderdale shipyard incident of November 18, 2004. Exponent Failure Analysis Associates, Inc., Report, December 2005.
Wills DP. Investigation of pitting corrosion in new stainless steel distillery pipeline. Exponent Failure Analysis Associates, Inc., Report, October 2004.
Wills DP. Investigation of corrosion on the research Vessel
Walton Smith; condition assessment and remedial recommendations. Exponent Failure Analysis Associates, Inc., Report, December 2003.
Wills DP. Investigation of the failure of several PVC water mains. Exponent Failure Analysis Associates, Inc., Report, November 2002.
Wills DP. Design, operation and safety review of four Glatt GPCG-200 2-bar fluid bed processors at Andrx Pharmaceuticals Incorporated. Exponent Failure Analysis Associates, Inc., Report, October 2001, with L.A. Swanger.
Wills DP. Swing gear failure on a Kobelco track excavator. Exponent Failure Analysis Associates, Inc., Report, August 2001.
Wills DP. Investigation of the condition of aging transit buses. Exponent Failure Analysis Associates, Inc., Report, May 2000.
Wills DP. Engine room fire aboard the
Starbrite. Exponent Failure Analysis Associates, Inc., Report, May 2000.
Wills DP.
Hat Trick incident at Roscioli Yachting Center on November 15, 1998. Exponent Failure Analysis Associates, Inc., Report, July 1999.
Wills DP. Airboat Propeller Failure . Failure Analysis Associates, Inc., Report, June 1998.
Wills DP. Investigation of cracking in a spiractor water treatment cone. Failure Analysis Associates, Inc., Report, September 1997.
Wills DP. Investigation of fractures in G.E. mixing valves. Failure Analysis Associates, Inc., Report, March 1997.
Wills DP. Corrosion of starboard oil/water separator on the
Florida Responder. Failure Analysis Associates, Inc., Report, October 1995.
Wills DP. Hull corrosion damage on the
MV Gulf Coast Responder. Failure Analysis Associates, Inc., Report, January 1994.
Wills DP. Multi-layer chemical vapor deposition for extrusion die mandrels. Report 84-TB-04, Atlantic Richfield Metals Co. Research and Development, March 1984.