EAST HARTFORD, Conn. – Two of the Research Center's experts in solid mechanics, Dr. Thomas Martin and Dr. Alexander Staroselsky, were honored last month by the American Society of Mechanical Engineers (ASME) with a Best Paper Award for a paper presented during the ASME Turbo Expo 2015, held June 15-19 in Montreal, Canada.
Titled, "Transient Thermal Analysis and Visco-Plastic Damage Model for Life Prediction of Turbine Components," the paper was selected for recognition by the ASME International Gas Turbine Institute’s (IGTI) Structures and Dynamics committee from a field of 150 submissions.
According to Martin, the paper presented a physics-based prediction of overall deformation and local failure modes in cooled turbine airfoils, blade outer air seals, and other turbomachinery parts operating in severe high temperature and high stress environments.
It focused on analysis work incorporating time-accurate, coupled aerothermal computational fluid dynamics with non-linear deformation thermal-structural finite element method (FEM) and a slip-based constitutive model -- all evaluated at real engine characteristic mission times and flight points for part life prediction.
Using this approach will allow turbine durability engineers to predict damage, and then develop designs to account for crucial creep-fatigue interaction and local deformation effects...a major step toward damage-tolerant component design, Martin indicated.
The paper was authored by Martin, Staroselsky and University of Connecticut Professor-in-Residence Brice Cassenti -- a former UTRC researcher in the areas of non-linear FEM, material modeling, supercomputer programming and advanced propulsion. Martin accepted the award on behalf of himself and his co-authors at the conference's Structures and Dynamics committee meeting.
The ASME Turbo Expo, established 60 years ago, is a five-day technical conference and three-day exposition that represents the world's largest conference for turbomachinery professionals. Every year, each of ASME’s various IGTI committees select a paper published at the Turbo Expo to receive that respective committee's Best Paper Award. This provides an opportunity to showcase outstanding technical papers, acknowledge the author's/co-authors' contributions to the gas turbine industry, and support and maintain the high quality of papers presented.
The conference is sponsored by major gas turbine companies, most notably General Electric, Pratt & Whitney and Rolls-Royce. The 2015 event attracted 3,000 engineers from around the world.
United Technologies Research Center delivers advanced technologies to the businesses of United Technologies Corp. (UTC) to improve the performance, energy efficiency and cost of UTC products and processes. UTRC also engages with UTC business units and external research organizations to expand the boundaries of science and technology through research and innovation, delivering technology options that meet and anticipate the needs of the marketplace. Founded in 1929, UTRC is headquartered in East Hartford, Connecticut, and has research and development subsidiaries established in Shanghai, China, and Cork, Ireland. UTRC's affiliate, United Technologies Research Center, Inc., has a research facility in Berkeley, California.
Contact: Laura Stevens, (860) 610-1653