Determination of critical delamination diameter of laminated composite plates under buckling loads

Arman, Yusuf; Zor, Mehmet; Aksoy, Süleyman Özkan

doi:10.1016/j.compscitech.2006.02.014

Cited by 36 publications

(11 citation statements)

References 19 publications

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“…It is evident that the results of these investigations do not apply in the cases where the thickness of this part is equal to or greater than the length of the crack. Moreover, there is a series of works, such as Hwang and Mao (1999), Short et al (2001) and Arman et al (2006), investigating the effects of the geometry of the delaminated portion on the buckling force of the laminate. At the same time, in these works the investigations were carried out experimentally and numerically with the use of FEM modeling.…”

Section: Introductionmentioning

confidence: 99%

“…The 0020-7683/$ -see front matter Ó 2010 Elsevier Ltd. All rights reserved. doi:10.1016/j.ijsolstr.2010.08.018 same problem for a rectangular plate containing a circular cylindrical hole through the thickness of the plate was investigated by Arman et al (2006). It was assumed that the circular delamination (crack) was around the circular hole and to obtain numerical results, 3D FEM modeling of the packet program ANSYS 6.1 was used.…”

Section: Introductionmentioning

confidence: 99%

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Buckling delamination of a rectangular plate containing a rectangular crack and made from elastic and viscoelastic composite materials

Akbarov

Yahnioğlu

Karataş

2010

International Journal of Solids and Structures

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a b s t r a c tThis paper studies a three-dimensional buckling delamination problem for a rectangular plate made from elastic and viscoelastic composite material. It is assumed that the plate contains a rectangular band-crack (Case 1) and a rectangular edge-crack (Case 2) and that the edge-surfaces of these cracks have an initial infinitesimal imperfection. The evolution of this initial imperfection with an external compressive loading, acting along the crack (for an elastic composite) or with duration of time (for a viscoelastic composite under fixed external loading) is investigated within the framework of three-dimensional geometrically non-linear field equations of the theory of the viscoelasticity for anisotropic bodies. To determine the values of the critical force or critical time as well as the buckling delamination mode, the initial imperfection criterion is used. The corresponding boundary-value problems are solved by employing boundary form perturbation techniques, Laplace transform and FEM (Finite Element Method). The influence of the materials and/or the geometrical parameters of the plate on the critical values are discussed. In particular, it is established that for the considered change range of the problem parameters, the buckling form depends only on the initial infinitesimal imperfection mode of the crack edges.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Buckling delamination of a rectangular plate containing a rectangular crack and made from elastic and viscoelastic composite materials

Akbarov

Yahnioğlu

Karataş

2010

International Journal of Solids and Structures

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“…The buckling tests were done in the compression mode on a Shimadzu AG-100 kN test machine. The buckling-test apparatus designed by Arman et al 2 consists of two clamped edges at the bottom and top and two free edges as the boundary conditions as shown in Figure 1. As a result of the clamped boundary condition of the buckling-test apparatus that holds the specimen at the bottom and top edges, each having a 10 mm clamping length, the height of the test specimens were determined to be 80 mm as shown in Figure 1.…”

Section: Experimental Procedures Of the Critical Buckling Loadmentioning

confidence: 99%

“…The buckling behavior of symmetric cross-ply and angle-ply laminated flat composite columns was described in 1 , investigating the effects of the column thickness and wideness, the orientation angles, the fillet radius and the modulus ratios on the critical buckling load with the finite-element method (FEM) based on the first-order shear-deformation theory (FSDT). Arman et al 2 investigated the effect of the delamination around a single circular hole on the critical buckling load of woven-fabric-laminated composite plates. Besides the critical buckling load, they determined the critical delamination diameter.…”

Section: Introductionmentioning

confidence: 99%

Investigation of hole effects on the critical buckling load of laminated composite plates

Kurşun¹,

Topal²

2016

Mater. Tehnol.

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In this study, the effects of the hole diameter on the buckling behavior of glass-fiber-reinforced, laminated composite rectangular plates were investigated both experimentally and numerically. As the test specimens, E-glass/epoxy symmetric-ply composites with eight layers were manufactured using the hand lay-up technique and drilled with different hole diameters ranging from 10 to 40 mm. The laminated composite plates were arranged with different symmetric orientation angles such as [(0°/90°)2]s, [(-15°/15°)2]s, [(-30°/30°)2]s and [(-45°/45°)2]s. The experimental critical-buckling loads of the plates were found by clamping the bottom and upper edges and then these results were compared with the results obtained with the numerical analysis. The determination of the critical buckling loads for the laminated composite plates with different hole diameters was performed using the ANSYS 12.1 ® finite-element-analysis software. The numerical analysis showed good agreement with the experimental results for different hole diameters and fiber orientation angles. It was concluded that the critical buckling loads strongly depend on the diameter of the hole and fiber orientation angles. Keywords: buckling, glass fibers, finite element method (FEM) V tej {tudiji je bil eksperimentalno in numeri~no preiskovan vpliv premera luknje na obna{anje pri upogibu s steklenimi vlakni laminirane kompozitne {tirioglate plo{~e. Kompozitni vzorci so bili izdelani s simetri~nim polaganjem E-steklo/epoksi, z osmimi plastmi, z uporabo tehnike ro~nega polaganja in vrtanja lukenj razli~nega premera od 10 do 40 mm. Laminirane kompozitne plo{~e so bile izdelane z razli~nimi, simetri~no orientiranimi koti vlaken, [(0°/90°)2]s, [(-15°/15°)2]s, [(-30°/30°)2]s in [(-45°/45°)2]s. Eksperimentalna kriti~na upogibna obremenitev plo{~je bila ugotovljena z vpetjem spodnjega in zgornjega roba, rezultati pa so bili primerjani z rezultati numeri~ne analize. Dolo~itev kriti~ne upogibne obremenitve za laminirane kompozitne plo{~e z luknjami z razli~nim premerom, je bila izvr{ena z uporabo programa za analizo kon~nih elementov ANSYS 12.1 ®. Numeri~na analiza je pokazala dobro ujemanje z rezultati preizkusov, za razli~ne premere lukenj in orientacijske kote vlaken. Ugotovljeno je, da je kriti~na upogibna obremenitev mo~no odvisna od premera luknje in od kota orientacije vlaken. Klju~ne besede: upogibanje, steklena vlakna, metoda kon~nih elementov (FEM)

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“…Obtained results are compared with each other according to a/l and b/l where a, b are the hole sizes and l is the length of the plate, respectively. Arman et al [8] performed effect of a single circular delamination around the circular hole on the critical buckling load of woven fabric laminated composite plates has been investigated experimentally and numerically. The determination of the critical delamination diameter for laminated composite plates has been intended by using three dimensional buckling analyses.…”

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confidence: 99%

Effect of Various Cut-Out on Buckling Analysis of Laminated Composite Plate Using Fe Simulation

2015

International Conference on Advancements and Recent Innovations in Mechanical, Production and Industrial Engineering

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Determination of critical delamination diameter of laminated composite plates under buckling loads

Cited by 36 publications

References 19 publications

Buckling delamination of a rectangular plate containing a rectangular crack and made from elastic and viscoelastic composite materials

Buckling delamination of a rectangular plate containing a rectangular crack and made from elastic and viscoelastic composite materials

Investigation of hole effects on the critical buckling load of laminated composite plates

Effect of Various Cut-Out on Buckling Analysis of Laminated Composite Plate Using Fe Simulation

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