Journal of Aerospace System Engineering (항공우주시스템공학회지)

The Society for Aerospace System Engineering (항공우주시스템공학회)
권호 표지
DOI QR코드

DOI QR Code

Study on Fatigue Analysis for the Cutout Panel Structure using the Relation of Max-Min Principal Stress

최대 최소 주응력 관계를 활용한 Cutout Panel 구조물의 피로해석연구

  • Shin, Insoo (International Joint Development Team of Korea Aerospace Industries, LTD) ;
  • Park, Gyucheul (International Joint Development Team of Korea Aerospace Industries, LTD) ;
  • Moon, Jungwon (International Joint Development Team of Korea Aerospace Industries, LTD) ;
  • Hong, Seunghyun (Airframe analysis Team of Korea Aerospace Industries, LTD)
  • 신인수 (한국항공우주산업주식회사 국제공동설계팀) ;
  • 박규철 (한국항공우주산업주식회사 기체해석팀) ;
  • 문정원 (한국항공우주산업주식회사 국제공동설계팀) ;
  • 홍승현
  • Received : 2015.08.27
  • Accepted : 2015.10.22
  • Published : 2015.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

The fatigue analysis for cutout panel used for the weight reduction of aircraft has been conventionally performed through the open hole concept using the reference stress and stress concentration factor (Kt). However, in the actual structure cases, the goal of weight reduction might be less meaningful due to the conservative approach induced by the difficulties of extracting the confident reference stress from FE-Analysis in the complicated loading behavior. Therefore a new approach is proposed in order to secure the effectiveness of weight reduction and validate the confidence of the analysis results using the interaction of max-min principal stress at the critical location of open hole edge line.

Keywords

References

  1. Richard C. Rice, SAE Fatigue Design Handbook, 3rd Ed. AE-22, USA, 1997
  2. Walter D. Pilkey, Peterson's Stress Concentration Factors, 2nd Ed., wiley, USA, 1997 .
  3. Niu, M.C.Y., Airframe Stress Analysis and Sizing. Second Edition, Hong Kong Conmilit Press Ltd, Hong Kong, 1997
  4. E.F Bruhn, Analysis and Design of Flight Vehicle Structure, JACOBS, 1973