Adhesive stresses in axially-loaded tubular bonded joints – Part I: Critical review and finite element assessment of published models

Dragoni, Eugenio; Goglio, Luca

doi:10.1016/j.ijadhadh.2013.09.009

Cited by 35 publications

(8 citation statements)

References 19 publications

(84 reference statements)

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“…According to Pugno and Carpinteri’s [ 8 ] stress characterization of tube glued attachments during loading, maximal shear stresses are produced at the extremities of the adhesives, with the pinnacle of highest shear stress arising at the extremity of the stronger tube. Dragoni and Goglio [ 9 ] conducted a comprehensive study on axial stressed tube bonded joints, analyzing and highlighting limitations. The requirement for an empirical, closed-form formulation was also emphasized, and the associated problems were not addressed properly.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Functionally Graded Adherents on Failure of Socket Joint of FRP Composite Tubes

et al. 2021

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Fiber-reinforced polymer (FRP) matrix materials are quickly being investigated for application in concrete construction repair, reinforcement, and refurbishment. The technology has progressed to the point that its future acceptance is mainly reliant on the availability of established design guidelines based on recognized performance criteria, as well as the cost competitiveness of these technologies in contrast to conventional rehabilitation methods. The goal of this study is to evaluate the different functional grades of adhesives throughout bond length for bonded socket joints of laminated FRP composite pipes. Damage development resistance is high with a functionally graded FRP composite socket joint, as shown. To extend the service life of the structure, the joint designer should use an FRP composite socket joint with a functionally graded adhesive (FGA).

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Section: Introductionmentioning

confidence: 99%

Investigation of Functionally Graded Adherents on Failure of Socket Joint of FRP Composite Tubes

et al. 2021

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“…Pugno and Carpinteri (2003) confirm that the stress analysis of tubular adhesive joints under axial load that maximum shear stresses are attained at the ends of the adhesive and peak of the maximum shear stress is reached at the end of the stiffer tube. Dragoni and Goglio (2013) critically reviewed the literature concerned with axially loaded tubular bonded joints and compared the results produced by the different models and point out the inadequacies. Finite element (FE) results on a range of joint configurations are used as numerical benchmark, extending the analyses presented in literature.…”

Section: Introductionmentioning

confidence: 99%

Effects of functionally graded adhesive on failures of socket joint of laminated FRP composite tubes

Nimje

Panigrahi

2016

International Journal of Damage Mechanics

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The effects of functionally graded adhesive on failures in socket joint of laminated FRP composite tubes are analyzed in the present research. Various types of failures in the socket joint have been studied using strength of materials and fracture mechanics approach. The critical location in the socket joint has been identified using strength of material approach. Subsequently, the principle of fracture mechanics has been employed with a presumption that a circumferential failure front pre-exist at the critical location in the socket joint. The failure evolution in the functionally graded adhesively bonded socket joint of laminated FRP composite tubes and fracture behaviour of embedded failures have been discussed with respect to the variation of fracture parameters such as the individual modes of strain energy release rates (SERR) along the failure front. The novelty of functionally graded adhesive is introduced with linear function profile in order to improve the failure growth resistance of the socket joint structure. Based on the failure indices, it has been observed that free edges of the coupling region are more vulnerable zones for interfacial failure initiation as failure indices for all the critical surfaces of bond layer are found to be the highest at those locations. Further, the effects of functionally graded adhesive with varied modulus ratios on failure onset are observed for critical surface. It has been observed that the failure onset and its propagation shall be reduced/delayed due to the use of functionally graded adhesive in the joint. Based on the failure growth studies, it has been noticed that interfacial failure propagation is governed by in-plane shearing mode and, other modes are insignificant in propagation. Efforts have been made to enhance the crack/damage growth resistance properties of the bonding material. Series of FE simulations have been carried out for varied interfacial failure length in tubular socket joint with functionally graded adhesive in order to achieve the significant effect of material gradation on SERR. It has been noticed that the effect of material gradation of adhesive on SERR is more predominant for shorter interfacial failure length which leads to delay the failure growth.

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“…Pipes are very important structures in many industries such as energy, aerospace, and construction [1]. In consideration of whole weight, strength, and maintenance workload, it is commonly accepted that there should be less joints in a piping system at first design.…”

Section: Introductionmentioning

confidence: 99%

Full Debonding Process of Adhesively Bonded Composite and Metallic Pipe Joints under Torsion

Han

Yuan

2016

Mathematical Problems in Engineering

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Bonded joints are very common in many pipeline systems, in which the bond behavior of the joint interface is of crucial importance. This paper presents two analytical solutions for the debonding process of a pipe joint under torsion, assuming that the bond interface follows either an exponential softening bond-slip law or a simplified bilinear model. The solutions are general, applicable to composites and metallic and indeed other pipes. Based on the analytical solutions, the influences of the bond length and stiffness on the torque-displacement curve and ultimate load are investigated. The solutions can be used to explain the stress transfer mechanism, the interface crack propagation, and the ductility of the joint.

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Adhesive stresses in axially-loaded tubular bonded joints – Part I: Critical review and finite element assessment of published models

Cited by 35 publications

References 19 publications

Investigation of Functionally Graded Adherents on Failure of Socket Joint of FRP Composite Tubes

Investigation of Functionally Graded Adherents on Failure of Socket Joint of FRP Composite Tubes

Effects of functionally graded adhesive on failures of socket joint of laminated FRP composite tubes

Full Debonding Process of Adhesively Bonded Composite and Metallic Pipe Joints under Torsion

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