Journal of Aerospace System Engineering (항공우주시스템공학회지)

The Society for Aerospace System Engineering (항공우주시스템공학회)
권호 표지

Mechanical Behavior of Fiber Metal Laminates with Local Delamination Defects

국부적 적층분리결함을 갖는 섬유금속적층판의 기계적 거동 특성

  • 최흥섭 ((주) 대한항공, 한국항공기술연구원) ;
  • 최형집 (국민대학교, 기계공학과) ;
  • 최원종 (한국항공대학교, 항공재료공학과) ;
  • 하민수 (경기공업대학, 정밀계측과)
  • Received : 2007.02.20
  • Published : 2007.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, the interlaminar crack problems of a fiber metal laminate (FML) under generalized plane deformation are studied using the theory of anisotropic elasticity. The crack is considered to be embedded in the matrix interlaminar region (including adhesive zone and resin rich zone) of the FML. Based on Fourier integral transformation and the stress matrix formulation, the current mixed boundary value problem is reduced to solving a system of Cauchy-type singular integral equations of the 1st kind. Within the theory of linear fracture mechanics, the stress intensity factors are defined on terms of the solutions of integral equations and numerical results are obtained for in-plane normal (mode I) crack surface loading. The effects of location and length of crack in the 3/2 and 2/1 ARALL, GLARE or CARE type FML's on the stress intensity factors are illustrated.

Keywords