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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.31 No.1
- 발행연도
- 2019.1
- 수록면
- 43 - 51 (9page)
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초록· 키워드
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This paper is concerned with the numerical calculation of mixed-mode stress intensity factors (SIFs) of 2-D isotropic functionally graded materials (FGMs) by the natural element method (more exactly, Petrov-Galerkin NEM). The spatial variation of elastic modulus in non-homogeneous FGMs is reflected into the modified interaction integral 𝑀 (1,2). The local NEM grid near the crack tip is refined, and the directly approximated strain and stress fields by PG-NEM are enhanced and smoothened by the patch recovery technique. Two numerical examples with the exponentially varying elastic modulus are taken to illustrate the proposed method. The mixed-mode SIFs are parametrically computed with respect to the exponent index in the elastic modulus and external loading and the crack angle and compared with the other reported results. It has been justified from the numerical results that the present method successfully and accurately calculates the mixed-mode stress intensity factors of 2-D non-homogeneous functionally graded materials.
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참고문헌 (55)
참고문헌 신청
Hadj Henni Abdelaziz / 2017 / An efficient hyperbolic shear deformation theory for bending, buckling and free vibration of FGM sandwich plates with various boundary conditions / Steel and Composite Structures, An International Journal 25(6):693~704
Abualnour, M. / 2018 / A novel quasi-3D trigonometric plate theory for free vibration analysis of advanced composite plates / Compos. Struct 184:688~697
Anderson, T. L. / 1991 / Fracture Mechanics: Fundamentals and Applications / CRC Press
Anlas, G. / 2000 / Numerical calculation of stress intensity factors in functionally graded materials / Int. J. Fracture 104:131~143
Apalak, M. K. / 2014 / Functionally graded adhesively bonded joints / Rev. Adhesion Adhesive 1:56~84
Abualnour, M. / 2018 / A novel quasi-3D trigonometric plate theory for free vibration analysis of advanced composite plates / Compos. Struct 184:688~697
Anderson, T. L. / 1991 / Fracture Mechanics: Fundamentals and Applications / CRC Press
Anlas, G. / 2000 / Numerical calculation of stress intensity factors in functionally graded materials / Int. J. Fracture 104:131~143
Apalak, M. K. / 2014 / Functionally graded adhesively bonded joints / Rev. Adhesion Adhesive 1:56~84
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