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E. Theotokoglou, I. Stampouloglou, G. Paulino (2010)
An Analytical Approach for an Adhesive Layer in a Graded Elastic WedgeMechanics of Advanced Materials and Structures, 17
I. Daniel, E. Gdoutos, J. Abot, Kuang-An Wang (2003)
Deformation and Failure of Composite Sandwich StructuresJournal of Thermoplastic Composite Materials, 16
E. Theotokoglou, G. Paulino (2005)
A Crack in the Homogeneous Half Plane Interacting with a Crack at the Interface Between the Nonhomogeneous Coating and the Homogeneous Half-PlaneInternational Journal of Fracture, 134
D. Zenkert, J. Bäcklund (1989)
PVC sandwich core materials: Mode I fracture toughnessComposites Science and Technology, 34
H. Shodja, H. Haftbaradaran, M. Asghari (2007)
A thermoelasticity solution of sandwich structures with functionally graded coatingComposites Science and Technology, 67
A. Kawasaki, R. Watanabe (2002)
Thermal fracture behavior of metal/ceramic functionally graded materialsEngineering Fracture Mechanics, 69
F. Erdogan (1995)
Fracture Mechanics of Functionally Graded MaterialsMRS Bulletin, 20
A. Carpinteri, M. Paggi, N. Pugno (2006)
An analytical approach for fracture and fatigue in functionally graded materialsInternational Journal of Fracture, 141
E. Theotokoglou, I. Tourlomousis (2010)
Crack kinking in sandwich structures under three-point bendingTheoretical and Applied Fracture Mechanics, 53
M. Santare, J. Lambros (2000)
USE OF GRADED FINITE ELEMENTS TO MODEL THE BEHAVIOR OF NONHOMOGENEOUS MATERIALSJournal of Applied Mechanics, 67
Z. Jin, N. Noda (1994)
Crack-Tip Singular Fields in Nonhomogeneous MaterialsJournal of Applied Mechanics, 61
S. Dag, K. Ilhan (2008)
Mixed-Mode Fracture Analysis of Orthotropic Functionally Graded Material Coatings Using Analytical and Computational MethodsJournal of Applied Mechanics, 75
D. Shim, G. Paulino, R. Dodds (2006)
Effect of material gradation on K-dominance of fracture specimensEngineering Fracture Mechanics, 73
Licheng Guo, Lin-zhi Wu, Li Ma, T. Zeng (2004)
Fracture analysis of a functionally graded coating-substrate structure with a crack perpendicular to the interface - Part I: Static problemInternational Journal of Fracture, 127
B. Yıldırım, S. Dag, F. Erdogan (2005)
Three dimensional fracture analysis of FGM coatings under thermomechanical loadingInternational Journal of Fracture, 132
M. Walters, G. Paulino, R. Dodds (2004)
Stress-intensity factors for surface cracks in functionally graded materials under mode-I thermomechanical loadingInternational Journal of Solids and Structures, 41
N. Apetre, B. Sankar, D. Ambur (2008)
Analytical Modeling of Sandwich Beams with Functionally Graded CoreJournal of Sandwich Structures & Materials, 10
K. Tohgo, A. Hadano (2006)
Characterization of Fracture Process in Ceramic-Metal Functionally Graded Material under Three-Point-BendingJsme International Journal Series A-solid Mechanics and Material Engineering, 49
Purpose – In this study composite and sandwich beams with homogeneous core and homogeneous or Functional Graded Materials (FGM) faces under three point bending have been confronted. The purpose of this paper is to study numerically sandwich beams with homogeneous core and homogeneous or FGM faces under three point bending and to compare the results for the stress and displacement fields with those resulted of coating – substrate and homogeneous beams. Considering a crack in the lower face sheet to study the influence of the material gradation on the stress intensity factors. Design/methodology/approach – At first a static finite element analysis is performed throughout the composite and sandwich beams, which is taking into account the graded character or not of the faces. For this reason five plane models are considered in order to have a comparable study for the stress and displacement fields of composite beams, which are subjected to three point bending. Second a crack in the lower face is considered parallel to the axis of gradation. When subjected to three point bending, this crack will propagate slowly perpendicular to the lower face. Findings – Computed distributions of the stress fields across the core material and near the interfaces are given for different materials gradation of the faces; and possible crack-initiation positions have been identified. Stress intensity factors are calculated using finite element method, and assuming linear fracture mechanics and plane strain conditions. Originality/value – The originality of the proposed analysis is to investigate for the first time numerically the influence of the FGMs or homogeneous faces in the core material of sandwich beams under three point bending relative to the coating – substrate and to the homogeneous beams. Second to study the influence of a crack in the lower graded face sheet on the overall behavior of the composite beam and to investigate the influence of the material gradation on the values of stress intensity factors.
International Journal of Structural Integrity – Emerald Publishing
Published: Feb 2, 2015
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