The Economical Life of Titanium Alloy Fasten Holes Structure
This paper outlined the experimental and theoretical study on the TC4 alloy fasten holes structure to assess the first inspection and maintenance period for structures. The initial fatigue quality of the fastener holes was represented by an equivalent initial flaw size distribution. Based on the experimental results of crack size, the life of fasten structure detail in which 5% crack happened was provided and the resulted life was suggested as the structure economical life. The predicated economical life of titanium alloy fasten hole structure are helpful to the economical repair of the airframe structure.
Y. H. Zhang and B. Yang, "The Economical Life of Titanium Alloy Fasten Holes Structure", Advanced Materials Research, Vols. 108-111, pp. 324-327, 2010