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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.35 No.3
- 발행연도
- 2020.1
- 수록면
- 439 - 447 (9page)
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This paper presents two sets of full three-dimensional thermoelastic finite element analyses of superimposed thermo-mechanically loaded Spar Wingskin Joints made with laminated Graphite Fiber Reinforced Plastic composites. The study emphasizes the influence of residual thermal stresses and material anisotropy on the inter-laminar delamination behavior of the joint structure. The delamination has been pre-embedded at the most likely location, i.e., in resin layer between the top and next ply of the fiber reinforced plastic laminated wingskin and near the spar overlap end. Multi-Point Constraint finite elements have been made use of at the vicinity of the delamination fronts. This helps in simulating the growth of the embedded delamination at both ends. The inter-laminar thermoelastic peel and shear stresses responsible for causing delamination damage due to a combined thermal and a static loading have been evaluated. Strain energy release rate components corresponding to the Mode I (opening), Mode II (sliding) and Mode III (tearing) of delamination are determined using the principle of Virtual Crack Closure Technique. These are seen to be different and non-self-similar at the two fronts of the embedded delamination. Residual stresses developed due to the thermoelastic anisotropy of the laminae are found to strongly influence the delamination onset and propagation characteristics, which have been reflected by the asymmetries in the nature of energy release rate plots and their significant variation along the delamination front.
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참고문헌 (30)
참고문헌 신청
Banea, M. D. / 2009 / Adhesively bonded joints in composite materials: an overview / Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 223(1):1~18
Aicha Benchiha / 2015 / Influence of the presence of defects on the stresses shear distribution in the adhesive layer for the single-lap bonded joint / Structural Engineering and Mechanics, An Int＇l Journal 53(5):1017~1030
Bertan Beylergil / 2019 / Mode-I fracture toughness of carbon fiber/epoxy composites interleaved by aramid nonwoven veils / Steel and Composite Structures, An International Journal 31(2):113~123
Larry W. Byrd / 2006 / Effect of temperature on stresses and delamination failure of z-pinned joints / International Journal of Mechanical Sciences 48(9):938~949
R.D. Cope / 1982 / Design of the composite spar-wingskin joint / Composites 13(1):47~53
Aicha Benchiha / 2015 / Influence of the presence of defects on the stresses shear distribution in the adhesive layer for the single-lap bonded joint / Structural Engineering and Mechanics, An Int＇l Journal 53(5):1017~1030
Bertan Beylergil / 2019 / Mode-I fracture toughness of carbon fiber/epoxy composites interleaved by aramid nonwoven veils / Steel and Composite Structures, An International Journal 31(2):113~123
Larry W. Byrd / 2006 / Effect of temperature on stresses and delamination failure of z-pinned joints / International Journal of Mechanical Sciences 48(9):938~949
R.D. Cope / 1982 / Design of the composite spar-wingskin joint / Composites 13(1):47~53
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