Computation Method in Failure Analysis of Mechanically Fastened Joints at Layered Composites

Ilić, Ivana; Petrović, Zlatko; Maksimović, Mirko; Stupar, Slobodan; Stamenković, Dragi

doi:10.5545/sv-jme.2011.157

Cited by 8 publications

(5 citation statements)

References 18 publications

(21 reference statements)

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“…Ondurucu et al investigated damage development process of glass–epoxy laminated composite pinned‐joints because of varying stacking sequence. Ilic et al used finite element method to determine the stress distribution around the fastener hole. Attention was paid to pin‐load distributions and its effect on the load level of failure and its location.…”

Section: Introductionmentioning

confidence: 99%

Investigation on failure modes for pin joints made from unidirectional glass–epoxy nanoclay laminates

Singh

Saini

Bhunia

2015

Fatigue Fract Eng Mat Struct

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A B S T R A C T In the present work the effect of the nanoclay on the bearing strength and failure mode of the pin joints was investigated both experimentally and numerically. Geometric parameters, i.e. the distance from the free edge of specimen to the diameter of the first hole (E/D) ratio and width of the specimen to the diameter of the holes (W/D) ratio were investigated. The E/D and W/D ratios were varied from 1 to 5. Tsai-Wu failure criterion with characteristic curve method and progressive damage analysis was used for the prediction of failure modes. Results showed that bearing strength and failure mode were considerable affected by the wt% of nanoclay and the geometric parameters. A good agreement was obtained between experimental and numerical predictions.Keywords characteristic curve; failure analysis; glass reinforced; nanoclay; pin joint; progressive damage failure. N O M E N C L A T U R Es = shear failure strength t = thickness of the specimen B = bearing failure mode D = diameter of the hole E = distance from the free edge of specimen E F = flexural modulus E 1 = longitudinal tensile modulus E 2 = transverse tensile modulus G 12 = shear modulus N = net-tension failure mode R c , R ot , R oc = characteristic curve parameters S = shearing failure mode v 12 = Poisson ratio W = width of the specimen X c = longitudinal compressive strength X t = longitudinal tensile strength Y c = transverse compressive strength Y t = transverse tensile strength ε F = strain to failure θ = failure angle σ b = bearing stress σ F = flexural strength I N T R O D U C T I O NIn the last decade, composite materials are being commonly used in structures that demand a high level of mechanical performance. Their high strength to weight and stiffness to weight ratios has facilitated the development of lighter structures, which often replace conventional metal structures. Fibre-reinforced composites offer the most reliable engineering materials in automotive, marine and aircraft industrial engineering applications because of their outstanding mechanical properties like impact resistance, high durability, low coefficient of friction and thermal expansion, ability to provide higher

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Section: Introductionmentioning

confidence: 99%

Investigation on failure modes for pin joints made from unidirectional glass–epoxy nanoclay laminates

Singh

Saini

Bhunia

2015

Fatigue Fract Eng Mat Struct

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“…However, other failure modes like collapse of the stiffener are possible in other types of loading, such as local loads [14]. The Tsai-Wu failure theory failure theory is used for the failure analysis [15]. Two methods were applied to the failure analysis.…”

Section: Failure Analysismentioning

confidence: 99%

An Experimental and Numerical Investigation of a Grid Composite Cylindrical Shell Subjected to Transverse Loading

Arashmehr

Rahimi

Rasouli

2013

SV-JME

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This paper presents an experimental and numerical study of a stiffened composite cylindrical shell with clamped-free boundary condition under transverse end loading. Electrical strain gauges were employed to measure the strains. Likewise a finite element analysis has been used to validate the experimental results. The finite element method (FEM) software used was ANSYS11. Fairly good agreements were observed between the numerical and the measured results. In addition, a comparison between the stiffened and unstiffened composite shell was carried out. It was found that the intersection of two stiffeners has an important effect in reducing Von Mises stress in the shell. Failure analysis based on Tsai-Wu failure theory was also performed. It was concluded that stiffening of the shell by helical stiffeners increases the load capacity considerably.

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“…Ondurucu et al 17 investigated damage development process of glassepoxy laminated composite pinned joints due to varying stacking sequence. Ilic et al 18 used finite element method to determine the stress distribution around the fastener hole. Attention was paid to pin-load distributions and its effect on the load level of failure and its location.…”

Section: Introductionmentioning

confidence: 99%

“…Ilic et al. 18 used finite element method to determine the stress distribution around the fastener hole. Attention was paid to pin-load distributions and its effect on the load level of failure and its location.…”

Section: Introductionmentioning

confidence: 99%

Influence of nanoparticle fillers content on the bearing strength behavior of glass fiber-reinforced epoxy composites pin joints

Sekhon

Saini

Singla

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part L:

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The objective of the present study is to investigate and compare the strength of single pin joints made with glass fiberreinforced epoxy laminates containing two different nanoparticles, i.e. nanoclay and nano TiO 2 , with bare composites. The analysis has been done both experimentally and numerically. Single-hole pin-loaded specimens were tested for their tensile strength and the distance from the free edge of the specimen to the diameter of the first hole (E/D) ratio, width of the specimen to the diameter of the holes (W/D) ratio were evaluated. The influence of these geometry parameters on the strength of the pin-loaded composites was investigated. It was found that the bearing strength of pin joints increased with the addition of nanoclay as compared to that of nano TiO 2 .

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Computation Method in Failure Analysis of Mechanically Fastened Joints at Layered Composites

Cited by 8 publications

References 18 publications

Investigation on failure modes for pin joints made from unidirectional glass–epoxy nanoclay laminates

Investigation on failure modes for pin joints made from unidirectional glass–epoxy nanoclay laminates

An Experimental and Numerical Investigation of a Grid Composite Cylindrical Shell Subjected to Transverse Loading

Influence of nanoparticle fillers content on the bearing strength behavior of glass fiber-reinforced epoxy composites pin joints

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