Huseyin SehitogluHuseyin Sehitoglu, C. J. Gauthier Professor and Head of the Department of Mechanical Science and Engineering, has received the 2007 Nadai Medal from the American Society of Mechanical Engineers (ASME). Established in 1975, the Nadai Medal recognizes distinguished contributions to the field of engineering materials.
Written by By Anna Flanagan
Huseyin Sehitoglu
Huseyin Sehitoglu
Huseyin Sehitoglu, C. J. Gauthier Professor and Head of the Department of Mechanical Science and Engineering, has received the 2007 Nadai Medal from the American Society of Mechanical Engineers (ASME). Established in 1975, the Nadai Medal recognizes distinguished contributions to the field of engineering materials. Professor Sehitoglu was honored "for outstanding contributions to a greater understanding of mechanical behavior of metals through the integration of mechanics and materials science."
During his career, Professor Sehitoglu has developed a reliable method for predicting operational life that successfully interpreted and synthesized experimental work on creep, plasticity and corrosion. His work paved the way for the development of robust design rules. His use of finite element analysis to study crack closure in fatigue is considered groundbreaking work. His explanation for the tension-compression asymmetry in NiTi shape memory alloys undergoing reversible phase transformations is also considerered a seminal contribution to the field, as he explained the role of plasticity and crystallographic texture on the shape memory response and relaxation of elastic energy leading to hysteresis in these class of metals. What's more, he developed models of thermomechanical deformation and fatigue processes that predict evolution and failure in high-temperature steels and Ni-based superalloys, publishing the definitive work on the subject in 1996. He has made important contributions to the understanding of twinning and slip, and modeling of twinning deformation mechanisms in low-stacking fault energy materials. Recently, he has been working on fabricating nanowires and nanochannels where the location of the nanochannel assembly is dictated by stress-assisted cracking of a dielectric film with prescribed stress concentrations and release structures.
Professor Sehitoglu is the director of the Fracture Control Program, a consortium of ground vehicle companies with a research emphasis on the fatigue of metals.