Väitös materiaalitekniikan alalta, Andrew Roiko, M.Sc.
Interaction of non-metallic inclusions, microstructure, and fatigue loading with small crack growth in high-strength steels.
Map © OpenStreetMap. Some rights reserved.
Andrew Roiko, M.Sc., väittelee 27.10.2017 klo 12 Aalto-yliopiston insinööritieteiden korkeakoulussa, konetekniikan laitoksella, aiheesta Interaction of non-metallic inclusions, microstructure, and fatigue loading with small crack growth in high-strength steels. Väitöksen ala on materiaalitekniikka.
Small defects are often the cause of fatigue crack initiation and failure. Since the initiation and growth of small cracks is the longest portion of the fatigue life of a machine component it is also the area where the largest increase in performance and quality can be achieved through better understanding and modeling of the material.
The prediction of the defect size along with the measurement and analysis of the small crack growth due to fatigue loading is examined in this thesis. The results provide knowledge and guidance to improve the quality and efficiency of engineering structures. The new methods and test results support and improve the modeling and prediction of machine components used in more demanding applications and loading situations.
Vastaväittäjät: Professori Gregory Glinka, University of Waterloo, Kanada ja professori Arto Lehtovaara, Tampereen teknillinen yliopisto
Valvoja: Professori Hannu Hänninen, Aalto-yliopiston insinööritieteiden korkeakoulu, konetekniikan laitos
Yhteystiedot:
Andrew Roiko M.Sc., andrew.roiko@vtt.fi
https://aaltodoc.aalto.fi/handle/123456789/49