섬유

nondestructive inspection and life determination of disc material

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 346
the prime role of nondestructive evaluation is to support development and validation of the two main design processes - which are the materials and manufacturing method design and engineering design of the engine. the second role of nondestructive evaluation is to monitor on a routine basis these design processes during the manufacture and service operations. this paper discusses shortcomings in the method which links the manufacturing inspection capability to the initial design life of parts. a methodology is outlined which establishes the imperfection size-frequency distribution for disc materials. the data validates the disc material manufacturing process and is also used with the probabilistic lifting method. in addition, the paper addresses the development of dracula, a programme for the detection of radial-axial subsurface cracks which has been brought to a generic state of service readiness and is used for disc life management
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