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Materials Processing and Manufacturing
Recent work in Expert's group has shown that high velocity sheet metal forming can dramatically improve material formability (the amount of stretch available without tearing) and wrinkling can be greatly suppressed. Electromagnetic forming is a very convenient way of flexibly…
Plastics Fracture Mechanics, Plastics Service Performance, Plastics Wear, Plastics Friction
Expert has developed a criterion for the prevention of rapid crack propagation in plastic pipes. He developed a formula for calculating slow crack propagation as a function of the stress intensity factor. He developed a method of prediction of ductile-brittle…
Automotive Engineering Materials
METAL MATRIX COMPOSITE APPLICATION. Expert has expertise in the many aspects of incorporating metal matrix composites into mechanical devices. He has been involved in the design, fabrication, machining, joining, and evaluation process for automotive applications. In particular, Expert has extensive…
Fracture Mechanics
Expert's background is in solid and structural mechanics. His training, research, and consulting interests include fatigue and fracture mechanics of brittle monolithic and composite materials (ceramics, concrete, rock, CMCs, MMCs, PMCs), mechanics of interfaces, plasticity, and damage tolerance analysis of…
Weld Structure, Tanks, Vessels
Expert (pronounced ma-kit-ka, ) has over 35 years experience in practical applications requiring consideration of materials, toughness, impact energy and resistance, tensile strength, yield strength, and ductility of metals. This includes experience with properties of welds and weldments, and ASME…
Failure Analysis of Materials
MATERIAL FAILURE ANALYSIS; ADHESIVE FAILURE; COMPOSITE FAILURE; METAL FAILURE. Expert's (pronounced Wall-teen) principal occupation has been in the analysis of failures of machine components, including orthopedic (surgical) implants. Materials analyzed include metals and alloys of all types, polymers, elastomers, composites,…
Metallurgical Engineering, Materials Processing, Materials Failure Analysis
Expert has gained extensive experience in the uses of ferrous metals and alloys (carbon and alloy steel, high strength steel, structural steel, heat resistant steel), non-ferrous metals and alloys, superalloys, stainless steels (austenitic, ferritic, martensitic, and precipitation hardening grades), tool…
Fatigue, Spate Methods, NDE, Product Liability, Thermomechanics, etc.
LIFE PREDICTION METHODOLOGIES FOR COMPONENTS OF STRUCTURES, MACHINES, AND ELECTRONIC DEVICES. Expert's work centers on life prediction methodologies for components of structures, machines, and electronic devices. The major parameters of interest are stress, strain, time, temperature, and damage. These quantities…
Cryogenic Materials
AUSTENITIC STAINLESS STEEL. Expert has expertise in the development of new nitrogen-strengthened steels. He was the U.S. representative to the High Nitrogen in Steels International Conference. He has also published three review papers and about 50 technical papers on low-temperature…
Fatigue and Experimental Mechanics
Expert has spent the bulk of his career in developing improved methods for predicting the fatigue life of mechanical parts. He has helped dozens of companies in designing and evaluating products for adequate fatigue performance, covering the spectrum from construction…