Experimental study on CFRP-to-steel bonded interfaces

Yu, Tao; Fernando, Dilum; Teng, Jinguang; Zhao, Xiao Ling

doi:10.1016/j.compositesb.2012.01.024

Cited by 255 publications

(96 citation statements)

References 12 publications

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“…The shape of the curves are similar and may be defined between bi-linear and a linear with an exponential softening, as described in the literarue for brittle substrates such as concrete [33,34], but a simple bi-linear shape is consistent with some previous findings reported in the literature in for CFRP-to-steel interfaces [35][36][37].…”

Section: Bond-slip Curvessupporting

confidence: 76%

Bond Behavior of CFRP/Steel Double Strap Joint at Elevated Temperatures

Li¹,

Li²,

Liu³

et al. 2018

Preprint

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Carbon fiber reinforced polymer (CFRP) has been used widely in strengthening of steel structures. Steel/CFRP systems subjected to elevated temperatures is realistic in a summer climate event in many countries where the temperature in steel may approach 50 °C or even higher, which will lead to the degradation of the bond performance between CFRP and steel. Therefore, predicting the bond behavior of the CFRP/steel system under elevated temperature is critical. This paper investigated the mechanical performance of CFRP/steel adhesively-bonded double strap joints at elevated temperatures. Thirty CFRP-steel double strap joints were tested to failure under temperatures between 10 °C and 90 °C. It was found that the joint failure mode changed from adherend failure to debonding failure as the temperature approached Tg. In addition, the ultimate load and joint stiffness decreased significantly at temperatures near to and greater than Tg. Based on the experimental results, a model is proposed to predict the bond stress of the CFRP/steel at different temperatures.

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Section: Bond-slip Curvessupporting

confidence: 76%

Bond Behavior of CFRP/Steel Double Strap Joint at Elevated Temperatures

Li¹,

Li²,

Liu³

et al. 2018

Preprint

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show abstract

“…Therefore, CFRP and metal are difficult to join using conventional welding methods. Nowadays, adhesive bonding [7][8][9][10] and mechanical joining such as bolt joining and self-piercing riveting [11] are the common methods for joining CFRP and metals. However, these joining methods have many inherent problems.…”

Section: Introductionmentioning

confidence: 99%

Characteristics and formation mechanism of porosities in CFRP during laser joining of CFRP and steel

Tan

Zhang

Jing

et al. 2015

Composites Part B: Engineering

152

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“…그러나 CFRP 복합재료의 낮은 연신 율, 낮은 파괴강성 및 연결접합의 어려움 등으로 인하여 자 동차 부품의 적용에는 많은 제약을 받고 있다. 최근, 이러 한 문제점을 해결하기 위한 방안으로, CFRP와 금속재료를 접합하여 용접이 가능하도록 하여 단일소재가 가지는 재 료의 한계점을 극복할 수 있도록 하이브리드 복합 재료에 대한 연구가 진행되고 있다 [5]. 일반적으로 하이브리드 복합재료의 기계적 물성은 하이 브리드 복합재료가 가지고 있는 접합구조에 크게 의존하 는 것으로 알려져 있으며 두 재료가 잘 접합되어 있지 않을 경우 충돌시 분리가 일어나 충돌 흡수능이 떨어질 수 있다.…”

Section: 서 론unclassified

Effect of Surface Roughness of Al5052/CFRP Composites on the Adhesion and Mechanical Properties

Lee¹,

Kim²,

Kang

2013

Composites Research

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ABSTRACT:In this study, Al5052/CFRP composites were fabricated for an automobile component by compression molding process inside a U-channel mold. Al5052 sheet were treated by sand blasting with two different particle sizes. Accordingly, surface roughness (Ra) values of 4.25 μm and 1.85 μm were obtained for the treated Al5052 sheets. The effect of surface roughness of Al5052 sheets on the adhesion and mechanical properties of Al5052/CFRP composites have been evaluated. Shear lap test and 3-point bending test were conducted. Results showed that the shear load for the composite fabricated by using the treated Al5052 sheets with Ra value of 1.85 μm and 4.25 μm were 3 and 5 times higher than Ra value of 0.73 µm of the composite fabricated by using the untreated sheet. The bending stress of 200MPa was obtained for the composite fabricated with untreated Al5052 sheets. The bending stress increased to 400MPa when the composite fabricated from treated sheets. However, the bending stress was not influenced by treating condition through sand blasting.

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Experimental study on CFRP-to-steel bonded interfaces

Cited by 255 publications

References 12 publications

Bond Behavior of CFRP/Steel Double Strap Joint at Elevated Temperatures

Bond Behavior of CFRP/Steel Double Strap Joint at Elevated Temperatures

Characteristics and formation mechanism of porosities in CFRP during laser joining of CFRP and steel

Effect of Surface Roughness of Al5052/CFRP Composites on the Adhesion and Mechanical Properties

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