my research work is on fatigue life prediction method. i want to find fatigue life of aircraft turbine using laser additive remanufecturing. i read some research paper by using different method but still i could not find any suitable method for fatigue prediction.
so my question is to suggest me some suitable method for fatigue life prediction or reffer me some research paper so that i can get a proper direction of my work?
still i dont know from where to start my work.
Dear Adnan,
Dealing with additive manufacturing(AM) you are very likely have a material containing various amounts of defects/imperfections deriving from the manufacturing process, e.g. high surface roughness, porosity, lack-of-fusion and anisotropic microstructure. The fatigue life in AM metals are usually found to be closely connected to the geometric defects.
I would suggest you to look into the √area-method proposed by Murakami [1], which can give predictions of the fatigue limit based on the hardness and the defect sizes.
[1] Y Murakami. Metal Fatigue: Effects of Small Defects and Nonmetallic Inclusions, Elsevier (2002)
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