Seawater effect on impact behavior of glass–epoxy composite pipes

Deniz, Mehmet Emin; Karakuzu, Ramazan

doi:10.1016/j.compositesb.2011.11.006

Cited by 56 publications

(22 citation statements)

References 10 publications

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“…Visual inspection of the impact-damaged specimens revealed that the damage area tended to become more localised with an increase in the impact energy. Similar observations were also reported by Deniz and Karakuzu[5]. Physical damage of 500-h-aged pipe specimen after impact test at energies of (Damage area-impact energy graph for all ageing conditions.…”

supporting

confidence: 88%

“…2. The procedure for ageing process was adopted as reported by Deniz et al [5] and Ellyin et al [7]. The…”

Section: Hydrothermal Ageing Processmentioning

confidence: 99%

“…Both fibres and matrix system can be influences by the moisture [1], UV radiation [2] and chemical solutions such as salts [3][4][5], alkalis and acids [6]. It has been observed that these environmental effects can affected the mechanical properties of glass fibre/reinforced plastic (GRP) pipes due to degradation of fibre-matrix bond.…”

Section: Introductionmentioning

confidence: 99%

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Burst strength and impact behaviour of hydrothermally aged glass fibre/epoxy composite pipes

et al. 2016

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supporting

confidence: 88%

“…2. The procedure for ageing process was adopted as reported by Deniz et al [5] and Ellyin et al [7]. The…”

Section: Hydrothermal Ageing Processmentioning

confidence: 99%

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Burst strength and impact behaviour of hydrothermally aged glass fibre/epoxy composite pipes

et al. 2016

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“…Strait et al also found that SW aging can significantly reduce the impact resistance of composite laminates due to plasticization of the matrix. Deniz and Karakazu reported the effect of artificial SW immersion on impact response of E‐glass/epoxy composite pipes. They obtained that SW has significant effect on impact characteristics and failure of composite pipes.…”

Section: Introductionmentioning

confidence: 99%

Low‐velocity impact behavior of glass fiber‐MWCNT/polymer laminates exposed to seawater and distilled water aging

et al. 2020

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The influence of seawater (SW) and distilled water (DW) aging on low‐velocity impact behavior of glass fiber/polymer laminates with and without multiwalled carbon nanotubes (MWCNTs) is experimentally investigated. To this aim, unidirectional glass fiber fabrics were coated with 0.75 wt% MWCNTs by airbrushing, infused with resin (epoxy or vinylester), and cured. Then, composite laminates with and without MWCNTs were cut into specimens for low‐velocity impact testing and exposed to hydrothermal aging by immersing them to SW and DW at 60°C for ~2000 h. After that time of conditioning, dry and wet specimens were tested using a drop‐weight tower with an impact energy of 15 J. Results showed that the moisture absorption content of composite laminates exposed to SW and DW aging is considerably higher on epoxy‐based specimens with respect to vinylester ones. The impact tests revealed that the measured impact peak force and absorbed energy in wet specimens are significantly lower compared to dry specimens due to plasticizing effect of the matrix. With the incorporation of MWCNTs into the laminates, the absorbed energy is increased due to additional damage mechanisms induced at CNT‐rich regions during the impact loading. It was also found that the damage area of the laminates after impact tends to be more prominent for laminates fabricated using vinylester resin than for those using epoxy resin as a result of its brittle behavior during impact loading. Post impact damage analyses by ultrasonic C‐scan imaging and scanning electron microscopy showed that matrix cracking, fiber breakage, fiber/matrix debonding, and delamination are the main damage mechanisms induced in the dry and wet specimens during impact.

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“…Kong (2010, 2011) described the design principal and basic methods of thermosetting composites, emphatically discussed the essence, harm and preventive measures of temperature lag and overshoot of thick composite laminates during curing and introduced three simulated test methods of cure schedule. Mehmet and Ramazan (2012) examined the effect of seawater immersion on the impact behavior of FRP pipes. Krishnan et al (2015) investigated the effects of the winding angle on the behavior of FRP pipes under multiaxial cyclic loading.…”

Section: Introductionmentioning

confidence: 99%

Design and Mechanical Tests of FRP Pipe with Bamboo and Veneer Layer

et al. 2017

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Pipes that are light in weight are necessary for convenience and to reduce the cost of transportation and installation. A new design of glass fiber reinforced plastic (FRP) pipe with a bamboo and veneer layer is presented in this paper. The core layer of the sandwich structure of the pipe wall is made of bamboo and veneer, and the inner and outer layers are FRP. Range analysis and variance analysis of orthogonal experiments were conducted to investigate the effect of fiber stress, winding angle, and core material on the mechanical performance of the pipes subjected to shearing and parallel-plate loading tests. The results indicated that the new design of FRP pipe with a bamboo and veneer layer was feasible, and the pipe had better mechanical performance with a fiber stress of 300 N, a winding angle of 30°, and a core material of bamboo. Core material was the most influential factor in mechanical performance. The average density of pipes was 0.94 g/cm 3 , approximately half that of the glass fiber reinforced plastic mortar (GRPM) pipes. The FRP pipe offered advantages in terms of weight savings and improved mechanical performance, and it showed a great application potential for the future.

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Seawater effect on impact behavior of glass–epoxy composite pipes

Cited by 56 publications

References 10 publications

Burst strength and impact behaviour of hydrothermally aged glass fibre/epoxy composite pipes

Burst strength and impact behaviour of hydrothermally aged glass fibre/epoxy composite pipes

Low‐velocity impact behavior of glass fiber‐MWCNT/polymer laminates exposed to seawater and distilled water aging

Design and Mechanical Tests of FRP Pipe with Bamboo and Veneer Layer

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