High-Strength Glass Fibers and Markets

Hausrath, Robert L.; Longobardo, Anthony V.

doi:10.1007/978-1-4419-0736-3_5

Cited by 22 publications

(18 citation statements)

References 13 publications

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“…14,15 E-glass fibers are spun from a melt state and their elastic moduli have been observed to be similar to that of fused silica. 13,14 In Fig. 2, however, values of E and H in the radial direction of the glass fibers are significantly lower than the values for fused silica, decreasing as indentation depth increases.…”

Section: Introductioncontrasting

confidence: 50%

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Nonlinear indentation of fibers

2011

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An instrumented indentation method is established to accurately measure the local elastic-plastic material properties of a single fiber by accounting for the additional sources of compliance associated with fiber indentation. The Oliver-Pharr instrumented indentation data analysis method is compared for indentation of a standard, planar fused silica sample and in the radial direction of homogeneous, isotropic E-glass fibers of two different diameters. Compliance contributions from substrate deflection and other nonindentation-related fiber deflections are quantified and shown to be negligible. The added compliance observed is attributed to the lack of constraint due to the finite geometry of a curved fiber surface. This compliance contribution is accounted for by using a proposed area correction to capture the geometry of the curved fiber-probe contact combined with a structural compliance correction. Implementation of these corrections to experimental indentation curves results in accurate measurements of the fiber elastic modulus and hardness.

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Section: Introductioncontrasting

confidence: 50%

“…Each single filament was secured at each end to weights (washers with a mass ;0.7 g, which resulted in a stress less than 2.5% of the tensile strength of all fibers under consideration 14 ), and draped over an elevated glass-PS substrate (see Fig. 5).…”

Section: A Materials and Sample Mounting Proceduresmentioning

confidence: 99%

Nonlinear indentation of fibers

2011

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“…Compositions of glass fibers for both general and specialty applications are summarized in Table , including the most recent representative glass fibers . In general, a majority of the glass systems for fiber reinforcement applications contain two common major oxides, Al 2 O 3 and SiO 2 .…”

Section: Fiber Glass Compositionsmentioning

confidence: 99%

“…Historical development of the glass fibers and their classifications were discussed elsewhere . In this article, for simplicity, we group E‐Glass and E‐CR Glass fibers under a category of general commercial applications, whereas specialty glass fibers refer to those exhibiting unique properties to meet special application requirements, yet significant less in volume by a market share, covering S‐Glass fibers with significantly greater strength for aerospace and ballistic protection, R‐Glass fibers with significantly greater Young's modulus for longer wind turbine blades, D‐Glass fibers with significantly lower dielectric constant and dielectric loss factor for high‐frequency circuit boards of high‐speed communications, AR‐Glass fibers with significantly greater resistance to strong caustic corrosion for concrete infrastructures…”

Section: Introductionmentioning

confidence: 99%

Composite reinforcement: Recent development of continuous glass fibers

Charpentier

et al. 2017

Int J of Appl Glass Sci

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International audienceLight weight, glass fiber-reinforced composites have gained a broad, global acceptance in commercial markets with a total of more than 7 billion of US dollars in revenue since its first commercial production in US in mid 1930s. This article briefly reviews recent development of continuous glass fibers with a focus on high-performance glass fibers. With accelerated commercial demands on high-performance glasses and/or glass fibers, there is a growing realization of fundamental needs in decoding nature of glass structures or “genes” of glass structure building blocks and establishing their relationships to properties of glasses or glass fibers. The related database development can enable researchers shortening the number of product development cycles to bring new fiber products to the market. A special section is, therefore, provided illustrating recent progress in characterizations of glass structures by using techniques of nuclear magnetic resonance spectroscopy, Raman spectroscopy, and molecular dynamics simulations

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“…Where appropriate I have obtained copyright permission from the copyright holder to reproduce material in this thesis. Figure 2-4 FEA predicted radial, hoop, and axial stress at the centre of the 50% wall loss defect from the inside of the pipe wall to the outside of the FRP wrap at burst pressure (Duell et al, 2008) Table 2-1 Summary of fibres properties (Hausrath & Longobardo, 2010) …”

Section: Declaration By Authormentioning

confidence: 99%

Composite overwrap repair system for pipelines - onshore and offshore application

Saeed¹

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Pipelines are widely used in the oil and gas industry in both offshore and onshore operations. After several years of operation in more or less corrosive environments, existing steel pipelines may suffer from internal or external metal loss due to erosion and/or corrosion damage mechanisms. More than 60 percent of the world's oil and gas transmission pipelines are more than 40 years old and for the most part in urgent need of rehabilitation in order to re-establish the original operating capacity.The most recent repair method used for the repair of internally or externally corroded pipelines is a method based on utilising fibre-reinforced polymer (FRP) composites. This involves wrapping the corroded part of a pipeline with this material. Many laboratory tests and field experiments have been performed and documented in the past few years, which have proven the viability of this method.Two design codes are available for the design of FRP overwrap repairs in the rehabilitation of pipeline systems. These codes are based on the deterministic approach for design, which has been the common method of developing codes in the past. On the other hand, the more modern methods of design, such as the ultimate state design method include safety factors, which are probabilistically determined using reliability-based analyses for a target reliability factor. This dissertation critically analyses and reviews the two major pipeline repair design codes by means of analytical and finite element analysis. This is then followed by a proposal for a reliability-based design method for FRP overwrap repair. Chapters 5 to 7 present the work carried out on the reliability-based design method. The following steps have been followed in the reliability study: The end product of this research is a probabilistic design method. This proposed method allows the design of FRP overwrap repair based on the Tsai-Hill equation and uses two safety factors, one for the steel pipe and the other for the FRP repair. The steel partial safety factor is constant and equals 0.72, but the FRP partial safety factor varies with the depth of corrosion. Two graphs are presented to calculate the FRP safety factors, i) for onshore pipelines and ii) for offshore pipelines.

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High-Strength Glass Fibers and Markets

Cited by 22 publications

References 13 publications

Nonlinear indentation of fibers

Nonlinear indentation of fibers

Composite reinforcement: Recent development of continuous glass fibers

Composite overwrap repair system for pipelines - onshore and offshore application

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