Structural Engineering and Mechanics

  • 제30권3호
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  • Pages.317-330
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  • 2008
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Variations of the stress intensity factors for a planar crack parallel to a bimaterial interface

  • Xu, Chunhui (College of Science, China Agricultural University) ;
  • Qin, Taiyan (College of Science, China Agricultural University) ;
  • Yuan, Li (College of Science, China Agricultural University) ;
  • Noda, Nao-Aki (Department of Mechanical Engineering, Kyushu Institute of Technology)
  • 투고 : 2007.04.07
  • 심사 : 2008.08.19
  • 발행 : 2008.10.20
⟨ 이전 논문 다음 논문 ⟩

초록

Stress intensity factors for a planar crack parallel to a bimaterial interface are considered. The formulation leads to a system of hypersingular integral equations whose unknowns are three modes of crack opening displacements. In the numerical analysis, the unknown displacement discontinuities are approximated by the products of the fundamental density functions and polynomials. The numerical results show that the present method yields smooth variations of stress intensity factors along the crack front accurately. The mixed mode stress intensity factors are indicated in tables and figures with varying the shape of crack, distance from the interface, and elastic constants. It is found that the maximum stress intensity factors normalized by root area are always insensitive to the crack aspect ratio. They are given in a form of formula useful for engineering applications.

키워드

참고문헌

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피인용 문헌

  1. 3-D dynamic interaction between a penny-shaped crack and a thin interlayer joining two elastic half-spaces vol.159, pp.2, 2009, https://doi.org/10.1007/s10704-009-9390-z
  2. Nonstationary problem for a bimaterial containing a crack and an interlayer 2012, https://doi.org/10.1007/s11003-012-9471-4
  3. Elastodynamic problem for a layered composite with penny-shaped crack under harmonic torsion pp.00442267, 2019, https://doi.org/10.1002/zamm.201800193
  4. Experimental and numerical prediction of the weakened zone of a ceramic bonded to a metal vol.8, pp.4, 2008, https://doi.org/10.12989/amr.2019.8.4.295