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

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

doi:10.1016/j.compstruct.2012.01.004

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

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

Research output: Journal article publication › Journal article › Academic research › peer-review

181 Citations (Scopus)

Abstract

This paper discusses the mechanical performance of steel/CFRP double strap joints subjected to harsh environments. Seventy-five joint specimens were exposed to various conditions, including (1) simulated sea-water at 20 °C and 50 °C up to 1. year in a temperature-controlled sea-water tank, (2) constant and (3) cyclic temperatures with a high level of relative humidity (RH) up to 1000. h in an environmental chamber. Tensile tests were undertaken to determine the mechanical properties of the unexposed and exposed specimens. Significant reductions in joint strength and stiffness were found for the specimens exposed to simulated sea-water after 1. year of exposure, while the specimens exposed to combinations of temperature and humidity in the environmental chamber showed little decrease in joint strength and stiffness after 1000. h of exposure. A model was developed to predict the strength and stiffness degradation of the joints in sea-water and the results compared well with the experimental results.

Original language	English
Pages (from-to)	1834-1845
Number of pages	12
Journal	Composite Structures
Volume	94
Issue number	5
DOIs	https://doi.org/10.1016/j.compstruct.2012.01.004
Publication status	Published - Apr 2012
Externally published	Yes

Keywords

CFRP
Cyclic temperature
Double strap joint
Durability
Humidity
Sea-water

ASJC Scopus subject areas

Ceramics and Composites
Civil and Structural Engineering

More information

10.1016/j.compstruct.2012.01.004

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

abstract = "This paper discusses the mechanical performance of steel/CFRP double strap joints subjected to harsh environments. Seventy-five joint specimens were exposed to various conditions, including (1) simulated sea-water at 20 °C and 50 °C up to 1. year in a temperature-controlled sea-water tank, (2) constant and (3) cyclic temperatures with a high level of relative humidity (RH) up to 1000. h in an environmental chamber. Tensile tests were undertaken to determine the mechanical properties of the unexposed and exposed specimens. Significant reductions in joint strength and stiffness were found for the specimens exposed to simulated sea-water after 1. year of exposure, while the specimens exposed to combinations of temperature and humidity in the environmental chamber showed little decrease in joint strength and stiffness after 1000. h of exposure. A model was developed to predict the strength and stiffness degradation of the joints in sea-water and the results compared well with the experimental results.",

keywords = "CFRP, Cyclic temperature, Double strap joint, Durability, Humidity, Sea-water",

author = "Nguyen, {Tien Cuong} and Yu Bai and Zhao, {Xiao Ling} and Riadh Al-Mahaidi",

note = "Funding Information: The authors wish to acknowledge Mr. Long Goh and Mr. Kevin Nievaart for their assistance in conducting the experiments at the Monash University Civil Engineering Laboratory. Financial support was received from the Australian Research Council and Monash University. ",

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AU - Nguyen, Tien Cuong

AU - Bai, Yu

AU - Zhao, Xiao Ling

AU - Al-Mahaidi, Riadh

N1 - Funding Information: The authors wish to acknowledge Mr. Long Goh and Mr. Kevin Nievaart for their assistance in conducting the experiments at the Monash University Civil Engineering Laboratory. Financial support was received from the Australian Research Council and Monash University.

PY - 2012/4

Y1 - 2012/4

N2 - This paper discusses the mechanical performance of steel/CFRP double strap joints subjected to harsh environments. Seventy-five joint specimens were exposed to various conditions, including (1) simulated sea-water at 20 °C and 50 °C up to 1. year in a temperature-controlled sea-water tank, (2) constant and (3) cyclic temperatures with a high level of relative humidity (RH) up to 1000. h in an environmental chamber. Tensile tests were undertaken to determine the mechanical properties of the unexposed and exposed specimens. Significant reductions in joint strength and stiffness were found for the specimens exposed to simulated sea-water after 1. year of exposure, while the specimens exposed to combinations of temperature and humidity in the environmental chamber showed little decrease in joint strength and stiffness after 1000. h of exposure. A model was developed to predict the strength and stiffness degradation of the joints in sea-water and the results compared well with the experimental results.

AB - This paper discusses the mechanical performance of steel/CFRP double strap joints subjected to harsh environments. Seventy-five joint specimens were exposed to various conditions, including (1) simulated sea-water at 20 °C and 50 °C up to 1. year in a temperature-controlled sea-water tank, (2) constant and (3) cyclic temperatures with a high level of relative humidity (RH) up to 1000. h in an environmental chamber. Tensile tests were undertaken to determine the mechanical properties of the unexposed and exposed specimens. Significant reductions in joint strength and stiffness were found for the specimens exposed to simulated sea-water after 1. year of exposure, while the specimens exposed to combinations of temperature and humidity in the environmental chamber showed little decrease in joint strength and stiffness after 1000. h of exposure. A model was developed to predict the strength and stiffness degradation of the joints in sea-water and the results compared well with the experimental results.

KW - CFRP

KW - Cyclic temperature

KW - Double strap joint

KW - Durability

KW - Humidity

KW - Sea-water

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ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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