Expert Details

Expert in Fatigue, Spate Methods, NDE, Product Liability, Thermomechanics, etc.

Expert ID: 108290 Wisconsin, USA

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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 are applied in numerous areas, such as flaw detection, quality control, proof testing, damage retardation, accelerated testing, notch problems, crack propagation, creep-fatigue interaction, fracture control, residual stress analysis, failure analysis, optimum design, aging structures, and novel methods of testing solid materials (such as thermal mapping and thermographic stress analysis (TSA) by infrared means). He is also a founder and board member of a small high-tech company at the University of Wisconsin Research Park.

AMERICAN SOCIETY FOR THE TESTING OF MATERIALS (ASTM); FATIGUE STANDARDS DEVELOPMENT. Expert has been a member of the ASTM since the 1960s. He was a member of the Executive Committee of E9 on Fatigue. Expert has led the Task Group on Fatigue Education. He has intimate knowledge of fatigue standards development and integration of research results in engineering practice.

ACCELERATED TESTING. Expert has used accelerated testing in a variety of areas.

SPATE AND DELTA THERM INFRARED STRESS ANALYZERS; NONDESTRUCTIVE EVALUATION (NDE); THERMOELASTICITY. Expert has conducted research using infrared stress analyzers since 1985 with funding from the Air Force, Shell, John Deere, Ford, Pratt & Whitney, and others. In addition to the SPATE infrared stress analyzer, Expert has used the related vibration pattern imager. He has also used forced-diffusion thermography, a new thermal NDE method developed at the University of Wisconsin. His work has included the areas of monolithic and composite materials, stress analysis, flaw detection, material failure analysis, mechanical behavior modeling, mechanical fatigue, creep-fatigue damage mechanics, mechanical properties, mechanical strain, mechanical stress, metal failure and analysis, nondestructive evaluation, thermoelastic stress analysis, and high-resolution full-field AC/DC thermometry.

SOLDER BEHAVIOR. Expert has conducted extensive research of solder behaviors and life prediction since 1985. He has been director of the Consortium for Mesomechanics of Electrical Interconnects (industries). Funding for his work has come from Intel, IBM, Boeing, Delco, Rockwell, and others. He has taught this subject and covered it in book chapters and technical papers. This has included the areas of creep-fatigue, electronic device reliability and testing, thermo-mechanical service environments, and surface-mount technology.

PRODUCT LIABILITY. Expert has been lecturer and/or organizer of many short courses on fatigue, fracture mechanics, failure analysis, and product liability for ASM, SAE, and SEM. He has been an expert witness on product liability in several court cases.

Expert may consult nationally and internationally, and is also local to the following cities: Milwaukee, Wisconsin - Madison, Wisconsin - Kenosha, Wisconsin - Racine, Wisconsin - Rockford, Illinois - Aurora, Illinois - Elgin, Illinois - Waukegan, Illinois - Arlington Heights, Illinois - Schaumburg, Illinois

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Year Degree Subject Institution
Year: 1968 Degree: PhD Subject: Theoretical and Applied Mechanics Institution: University of Illinois
Year: 1963 Degree: MS Subject: Engineering Mechanics Institution: New York University
Year: 1961 Degree: BS Subject: Engineering Mechanics Institution: University of Illinois

Work History

Years Employer Title Department Responsibilities
Years: 1968 to Present Employer: Undisclosed Title: Professor Emeritus of Engineering Physics Department: Responsibilities:
Years: 1995 to 1998 Employer: Title: Professor, Department of Nuclear Engineering and Engineering Physics Department: Responsibilities:
Years: 1969 to 1995 Employer: Title: Professor, Department of Engineering Mechanics and Astronautics Department: Responsibilities:
Years: 1964 to 1968 Employer: University of Illinois Title: Research Associate and Instructor Department: Responsibilities:
Years: 1961 to 1964 Employer: Bell Telephone Labs Title: Staff Member Department: Responsibilities:

Career Accomplishments

Associations / Societies
Expert is a member of ASME and ASTM. In 1985, he received a Research Fellowship from the Japan Society for the Promotion of Science.
Publications and Patents Summary
In addition to his numerous technical papers, Expert has published seven books. Two are on the Strength of Materials, four are on Engineering Mechanics (Statics and Dynamics), and one is on The Fundamentals of Cyclic Stress and Strain.

Additional Experience

Vendor Selection
Expert has experience in locating vendors of:

Fatigue and fracture testing equipment and services.
Infrared stress analysis and related thermal NDE equipment and services.
Special solder joint specimen making test equipment and services.
Remote parameter control equipment, methods development, and automotive applications.

He has access to the following resources to aid in vendor location:

Printed materials, Databases, Personal contacts.
Marketing Experience
Expert's main research has been in Thermoelastic Stress Analysis (TSA), a full-field, noncontacting experimental method based on small, modulated infrared emissions. Pioneering work at UW-Madison with this powerful method includes: isotropic and anisotropic materials (metallic and nonmetallic); high-temperature environments; random-load stress and modal analysis; three-dimensional stress analysis; stress microscopy; stress separation; image-based nondestructive evaluation and life prediction; TSA/FEM hybridization; measurement control, data processing and interpretation.

Recent research and lecturing: comprehensive mechanics analysis of ancient chariots. This technical work is correlated with wide-ranging studies in archaeology and art (example: "Virtual Rides on Tut and Ben-Hur Chariots," after-dinner presentation at Fatigue 2003, Queens' College, Cambridge, UK).

Language Skills

Language Proficiency

Fields of Expertise

accelerated testing, American Society for Testing and Materials, American Society for Testing and Materials fatigue standard, ASTM fatigue standard development, electronic assembled device, electronic-device-component life-prediction methodology, life-prediction methodology, machine-element life-prediction methodology, product liability, solder behavior, SPATE infrared stress analyzer, structural-component life-prediction methodology, thermoelasticity, airframe fatigue, elastomer fracturing, thermoelastic stress analysis, elastic modulus, nonferrous alloy, reliability testing, vibration modal analysis, analysis instrument, metallic element, solder joint reliability, solder joint, hybrid technique, electronic interconnector, Mohr stress circle diagram, laminate material, composite material stress analysis, surface-fatigue wear, metal forming analysis, mechanical behavior modeling, iron-alloy property, high-alloy steel, aluminum alloy property, strain measurement, dimensional measurement, data acquisition, machine design, fiber-reinforced plastic, hardness testing, plastic material, mechanical stress, metal failure, surface, conductor jointing, buckling, impact resistance, surface-mount technology, optical thermograph, scalar quantity, engine stress analysis, Young's modulus, torsional fatigue, titanium alloy property, thermometry, structural composite, stress rupture strength, stress measurement code, stress cracking, steel, steel working, static fatigue, quality control, polymer matrix composite, nickel alloy, metal bending, solid mechanical property, mechanical fatigue, instantaneous strain, graphite epoxy composite, glass fiber polymer composite, fracture mechanics, flaw detection, fiber laminate, fatigue, materials failure analysis, extensometer, epoxy laminate, electroplated coating durability, deformation analysis, creep, composite failure analysis, Charpy impact test, cast iron, carbon fiber reinforced plastic, actuator

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