Design guidance and structural integrity of bonded connections in GRE pipes

Knox, E.M; Lafferty, S.V.; Cowling, M.J.; Hashim, S.A.

doi:10.1016/s1359-835x(00)00114-7

Cited by 20 publications

(7 citation statements)

References 6 publications

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“…Unlike metals, there is no minimum thickness limits to allow for corrosion. Adherends, tapering details similar to the above were found useful in bonding epoxy composite pipes used for offshore water-handling systems [6,7]. Changing from a parallel pipe connection (quick-lock system) into a tapered equivalent was undertaken to achieve some design advantages.…”

Section: Aspects Of Joint Design and Evaluation 573mentioning

confidence: 99%

Aspects of Joint Design and Evaluation in Thick-Adherend Applications

Hashim

Knox

2004

The Journal of Adhesion

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Structural adhesives are gaining wide recognition by industry as they offer engineering designers greater flexibility to achieve economic and technical advantages. In the marine industry there are potential applications for adhesives in various types of construction, for example, thick steel and composite adherends, (typically 5À15 mm thick). The applications include panels and large pipes. This article is largely concerned with the use of two-part epoxy adhesives. The purpose of this article is to understand and evaluate the weaknesses of adhesives and adherends, in relation to specific applications and to use design and material selection to alleviate them. This understanding can be extended to other thick adherend applications. This article will also highlight the impact of structural epoxy adhesive technology on the design and fabrication of steel, composite, and hybrid constructions. The benefits and inherent limitations that can accrue are quantified through three case studies related to thick adherend connections.

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Section: Aspects Of Joint Design and Evaluation 573mentioning

confidence: 99%

Aspects of Joint Design and Evaluation in Thick-Adherend Applications

Hashim

Knox

2004

The Journal of Adhesion

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“…In order to solve these problems, this article first established the mathematical model with the pipe diameter, thermal shrinkage, elongation at break, and number of seams as control variables by using elastic mechanics method and composite piping design . Second, in order to obtain the optimal technological conditions for the preparation of polyester‐ramie nonwoven, response surface analysis was used to optimize the manufacturing process, and to investigate the effects of mixing ratio, the fiber web quantification and the needle‐punched density on the thermal shrinkage of polyester‐ramie nonwoven and the elongation at break of polyester‐ramie nonwoven lining material .…”

Section: Introductionmentioning

confidence: 99%

Design of pipe diameter of polyester‐ramie nonwoven lining material for pipeline rehabilitation

Zhang

Wang

et al. 2020

Polymer Composites

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In order to solve the problems of pipe diameter of polyester‐ramie nonwoven lining material used for sewage pipelines rehabilitation, the mathematical model of pipe diameter of lining material was established by using elastic mechanics method and composite piping design. The mixing ratio, the fiber web quantification and the needle‐punched density were selected to optimize the manufacturing process of polyester‐ramie nonwoven with thermal shrinkage rate and elongations at break, the results showed that the mixing ratio was 0.7, and the fiber web quantification was 600 g/m2, and the needle‐punched density was 180 thron/cm2. Under this process, the thermal shrinkage rate is 8.72%, and the elongation at break is 83%, which is close to the theoretical value, indicating that the response surface method has practical application value. Combined with the mathematical model and the optimal condition of manufacturing process, the design extremum of pipe diameter of lining material for sewage pipelines with different pipe diameters is predicted, which provides the theoretical basis for the preparation of polyester‐ramie nonwoven composites for pipeline rehabilitation.

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“…They used finite element analysis to identify dimensional effects on adhesive joint strength based on strength‐of‐materials and fracture mechanics considerations. The defect tolerance of taper/taper bonded connections of filament wound glass reinforced epoxy composite pipe joints, both instantaneously at a variety of temperatures, and as a function of time, considering the possibility of a fracture‐based failure and the competing failure mode of excessive deformation was demonstrated . The effects of number of patch layers on the burst pressure of low velocity impact damaged tubes that have been repaired with composite patches were investigated .…”

Section: Introductionmentioning

confidence: 99%

Repair of small damages in steel pipes with composite patches

Ayaz

Çitil

Şahan

2016

Materialwissenschaft Werkst

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The temperature change, internal pressure and corrosion are main reason of cracks in pipes. Removal of damaged pipes with new ones gives rise to major disruption during operation. This causes loss of time and cost. This study aims to prevent crack propagation and to obtain fast repair in damaged area, at the beginning of the damage. Repair of small cracks in steel pipes using composite patches has been studied in this work. The aim of the study is to repair small cracks less than 8 mm length. For this purpose, holes with 8 mm diameters were drilled in 170 mm long pipes and composite patches with 2, 2.6 and 3.2 mm thickness and 35, 40 and 45 mm overlap lengths with 60, 90 and 120° overlap angles were attached with an adhesive of 0.2 mm thickness. The repaired pipes were subjected to internal pressure until damage occurred. A finite element model was developed and the numerical results were verified based on experiments. The repair of steel pipe with adhesive bonding was successfully achieved under high pressure with composite patches. The results show that the increase in overlap angle results in an increased surface area, and consequently an increase in failure load. Furthermore, the failure load increased with an increase in patch thickness. Additionally, it is seen that the failure load does not change significantly with increasing patch thickness.

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Design guidance and structural integrity of bonded connections in GRE pipes

Cited by 20 publications

References 6 publications

Aspects of Joint Design and Evaluation in Thick-Adherend Applications

Aspects of Joint Design and Evaluation in Thick-Adherend Applications

Design of pipe diameter of polyester‐ramie nonwoven lining material for pipeline rehabilitation

Repair of small damages in steel pipes with composite patches

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