Durability of steel/CFRP double strap joints exposed to sea water, cyclic temperature and humidity

Nguyen, Tien Cuong; Bai, Yu; Zhao, Xiao Ling; Al-Mahaidi, Riadh

doi:10.1016/j.compstruct.2012.01.004

Cited by 155 publications

(58 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This is consistent with the findings of Nguyen et al [27], who reported approximately 10-20% reductions in strength of un-loaded NM CFRP (240 GPa) patched lap-joints exposed to simulated seawater at 50°C. However when tested under the same conditions alone the CFRP material showed little reduction in strength whereas coupons of epoxy adhesive suffered 30% reductions in strength after 6 months exposure.…”

Section: Bond Strengthsupporting

confidence: 94%

“…In turn demonstrating that CFRP materials do not commonly degrade and bond strengths more closely follow the degradation of epoxy adhesives. As specimens in the present study and those in the study by Nguyen et al [27] had comparable degradation amounts it is inferred that the epoxy adhesives degraded comparably. The study by Dawood and Rizkalla [29] further confirmed that CFRP materials alone displayed negligible change in strength after extended exposures to sea water.…”

Section: Bond Strengthmentioning

confidence: 55%

“…Low CST20M1R2P6 CLT20M1R2P24 CST20M6R2P6 CLT20M6R2P24 CST20M1R6P6 CLT20M1R6P24 CST20M6R6P6 CLT20M6R6P24 CST40M1R2P6 CLT40M1R2P24 CST40M6R2P6 CLT40M6R2P24 CST40M1R6P6 CLT40M1R6P24 CST40M6R6P6 CLT40M6R6P24 CST50M1R2P6 CLT50M1R2P24 CST50M6R2P6 CLT50M6R2P24 CST50M1R6P6 CLT50M1R6P24 CST50M6R6P6 CLT50M6R6P24 lost during 20°C exposure did not exceed 6%. A recent experimental investigation on CFRP sheeting [27] also indicated minimal reductions in fibre strength after seawater submergence.…”

Section: Effect Of Exposure Temperature and Environmentmentioning

confidence: 92%

“…Nguyen et al [26] investigated the influence of elevated temperature and corrosive sea water, as well as their synergistic influence [27]. A summary of findings of their work [31] as well as a recent review paper [32] establish the importance of understanding the bond durability under aggressive environmental conditions.…”

Section: Introductionmentioning

confidence: 95%

“…To the best of authors knowledge, there are only a few investigations into durability of CFRP/steel bond under exposures to extreme environmental conditions ( [26][27][28][29][30]). Nguyen et al [26] investigated the influence of elevated temperature and corrosive sea water, as well as their synergistic influence [27].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Bond durability of fatigued CFRP-steel double-lap joints pre-exposed to marine environment

Borrie

Liu

Zhao

et al. 2015

Composite Structures

View full text Add to dashboard Cite

Section: Bond Strengthsupporting

confidence: 94%

Section: Bond Strengthmentioning

confidence: 55%

Section: Effect Of Exposure Temperature and Environmentmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Bond durability of fatigued CFRP-steel double-lap joints pre-exposed to marine environment

Borrie

Liu

Zhao

et al. 2015

Composite Structures

View full text Add to dashboard Cite

Long‐term performance of single‐lap joints: Review, challenges and prospects in civil engineering

Shu,

Qiang,

Jiang

et al. 2023

Engineering Reports

View full text Add to dashboard Cite

Compared with traditional technology, bonding technology is more suitable for civil structure reinforcement because of its cost‐efficiency and superior mechanical properties. However, research on the long‐term performance of single‐lap joints (SLJs) requires better organization and comprehension. This article aims to investigate the long‐term performance and optimization design of SLJs. The main factors influencing the long‐term performance of SLJs from both material and component levels are discussed. The moisture diffusion mechanisms of bulk adhesives and the degradation mechanisms of SLJs are explored. Moreover, the optimization design of SLJs focuses on evaluating the overlap length, adhesive layer thicknesses, and changes in adhesives along the overlap length based on available literature. It is found that the applicability of diffusion models should be validated, and the selection of the models should consider working environments and types of adhesives. Exploring failure mechanisms and design criteria for the mixed SLJs in hygrothermal environments with/without sustained or alternating load is significant for the optimization design. This article indicates the limitations on the shear strength and long‐term performance of SLJs in available studies and provides insights into the challenges and prospects of their optimization design.

show abstract

Investigation of effects of extreme environment conditions on multiwall carbon nanotube‐epoxy adhesive and adhesive joints

et al. 2022

View full text Add to dashboard Cite

Mechanical and thermal properties of epoxy‐multiwall carbon nanotubes (MWCNTs) at different fractions (0.0, 0.25, 0.5, and 1.0 wt%) were investigated. The dispersion of the nanotubes in an epoxy adhesive commonly used in an automotive application was performed using a grease worker. This device has a perforated plate, able to produce mechanical shear. To investigate the behavior of adhesive‐carbon nanotubes mixtures and the bonding performance, four groups were prepared using two different perforated plates, P1 and P2. All MWCNT‐epoxy were submitted to extreme environmental conditions, resumed as reference (non‐aged), 500 h at 100°C, 500 h at 95% of relative humidity at 40°C, and 500 h under salt spray. A reduction in glass transition temperature was observed with the addition of the nanofiller and no increases on statistic heat‐resistant index temperature were noticed in MWCNT‐epoxy produced using both plates. Changes in the peaks at 3300, 1510, and 835 cm−1 after aging were seen in infrared spectra. The MWCNT addition to pure epoxy increased the apparent shear strength by 14% using P1. In P2, which has the mechanical shear greater by a factor of 2, no significant differences were observed, due to defects and agglomeration of MWCNTs observed by image analysis.

show abstract

Durability of steel/CFRP double strap joints exposed to sea water, cyclic temperature and humidity

Cited by 155 publications

References 22 publications

Bond durability of fatigued CFRP-steel double-lap joints pre-exposed to marine environment

Bond durability of fatigued CFRP-steel double-lap joints pre-exposed to marine environment

Long‐term performance of single‐lap joints: Review, challenges and prospects in civil engineering

Investigation of effects of extreme environment conditions on multiwall carbon nanotube‐epoxy adhesive and adhesive joints

Contact Info

Product

Resources

About