Simulation of fatigue failure in composite axial compressor blades |
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| Authors: | Qubo Li Janusz Piechna Norbert Müeller |
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| Affiliation: | 1. Turbomachinery Laboratory, Department of Mechanical Engineering, Michigan State University, East Lansing, MI 48824-1226, USA;2. Institute of Aeronautics and Applied Mechanics, Warsaw University of Technology, Warsaw, Poland |
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| Abstract: | Centrifugal forces are generated by a spinning impeller, of magnitudes that create large stresses. Aerodynamic forces are also imparted on an impeller blade, which varies with time and position. These two forces play different roles during compressor events. Damage accumulated from these events results in the fatigue failure of impeller material and structure. Therefore, it is important to design an impeller against dynamic and fatigue failure. The finite element method has been used in the study of impeller fracture mechanics and is regarded as an important tool in the design and analysis of material and structures. |
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| Keywords: | Composite axial impeller Fatigue Finite element method Damage accumulation |
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