Improved mechanical properties of resistance welded joints of thermoplastic composites by versatile graphene oxide

Xiong, Xuhai; Wang, Daosehng; Ren, Rong; Zhao, Pu; Xu, Chonghai; Ji, Shude

doi:10.1080/01694243.2020.1834288

Cited by 11 publications

(3 citation statements)

References 33 publications

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“…To satisfy the commercial requirements, the fabric heating elements are supposed to be high electrical conductivity, excellent mechanically flexible, lightweight, and wearable. [10][11][12][13][14] Consequently, considerable efforts have been devoted to preparing fabric heating elements used various types of conductive fibers to form the fabric in previous work, involving metal fiber, [15][16][17] carbon fiber, [18][19][20] and inherently conductive polymer fiber. [21][22][23] However, the limitation of the choice of fiber, some of which are not very suitable for weaving due to their limited ductility.…”

Section: Introductionmentioning

confidence: 99%

Novel spatially distributed heating carbon fabric and decoupling of interfacial electricity

Hong

Zhong

Dong

et al. 2022

Journal of Industrial Textiles

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Hybrid carbon fabrics consisted of three regions of full carbon, half carbon (vertical/horizontal), and non-carbon region were provided, which could realize spatially distributed heating and did not been previously reported. As a heating element, the carbon fabric exhibited high efficiency electro-thermal response, the equilibrium temperature of the full carbon region can reach 42°C within only 3 s at a low applied current of 0.2 A. In addition, the carbon fabric gives a significant resistance-temperature sensitivities of −0.303%/°C∼ −0.596%/°C. Moreover, the equivalent circuit model was established to decouple the interface electricity, including the specimen-electrode interfacial resistance (2 R i) of 7.4 Ω, and the contact resistance between orthogonal carbon fiber ( R ii) of 6.4 Ω. This paper provides a simple method to prepare spatially distributed heating fabric and the decoupling method can provide a more suitable selection for the development and analysis of interfacial electricity for carbon fiber and fabric.

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Section: Introductionmentioning

confidence: 99%

Novel spatially distributed heating carbon fabric and decoupling of interfacial electricity

Hong

Zhong

Dong

et al. 2022

Journal of Industrial Textiles

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“…Consequently, mainly these two technologies are currently being used in the aerospace industry, e.g., the rudder and elevator of the Gulfstream G650 [4] are assembled with induction welding, and the ribs and skin in the fixed leading edge of the A340 and A380 are joined using resistance welding [5]. Many recent studies have been published on process modelling and on experimental investigations to better understand the induction, resistance and ultrasonic welding processes [6][7][8][9][10][11][12][13][14][15], which illustrates the current relevance. Among the three mentioned welding techniques, ultrasonic welding is typically the fastest and lowest energy-consuming joining technique for thermoplastic composites [2].…”

Section: Introductionmentioning

confidence: 99%

A Study on Through-the-Thickness Heating in Continuous Ultrasonic Welding of Thermoplastic Composites

et al. 2021

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Continuous ultrasonic welding is a promising technique for joining thermoplastic composites structures together. The aim of this study was to gain further insight into what causes higher through-the-thickness heating in continuous ultrasonic welding of thermoplastic composites as compared to the static process. Thermocouples were used to measure temperature evolutions at the welding interface and within the adherends. To understand the mechanisms causing the observed temperature behaviours, the results were compared to temperature measurements from an equivalent static welding process and to the predictions from a simplified heat transfer model. Despite the significantly higher temperatures measured at the welding interface for the continuous process, viscoelastic bulk heat generation and not thermal conduction from the interface was identified as the main cause of higher through-the-thickness heating in the top adherend. Interestingly the top adherend seemed to absorb most of the vibrational energy in the continuous process as opposed to a more balanced energy share between the top and bottom adherend in the static process. Finally, the higher temperatures at the welding interface in continuous ultrasonic welding were attributed to pre-heating of the energy director due to the vibrations being transmitted downstream of the sonotrode, to reduced squeeze-flow of energy director due to the larger adherend size, and to heat flux originating downstream as the welding process continues.

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“…25 On the other hand, thermoplastic composites (TPCs) offer unique advantages such as being recyclable and ease of production. 26,27 Furthermore, thermoplastics are replacing thermosets as matrix in composites owing to their superior impact toughness. 28,29 Consequently, especially in the automotive and aerospace industries, 30,31 the interest for thermoplastic-based composites has grown consistently.…”

Section: Introductionmentioning

confidence: 99%

Directly bonded single lap joints of SiCp/AA2124 composite with glass fiber-reinforced polypropylene: Hole drilling effects on lap shear strength and out-of-plane impact response

Öztoprak

2021

Journal of Composite Materials

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Joining dissimilar materials to achieve lightweight design and energy efficiency has been increasingly popular. A joint formed by components of particle-reinforced metal and polymer matrix composite combines the merits of both materials. This paper is mainly focused on the research of the tensile lap shear and impact behavior of the dissimilar single-lap joints (SLJs) between SiCp/AA2124 composite and glass fiber-reinforced polypropylene (PP). The effects of out-of-plane loading applied from different surfaces of SLJs on impact responses are evaluated. Hot pressing technique is introduced to manufacture metal/polymer assembly without using any adhesive. The hole drilling effect is investigated with the idea that it may provide weight reduction and also increase the strength of the dissimilar SLJs. The results indicate that the dissimilar SLJs show more Charpy impact strength when the impact is performed on the metal-matrix composite (MMC). Mechanical properties of SLJs are adversely affected by a drilled hole in the MMC adherend.

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Improved mechanical properties of resistance welded joints of thermoplastic composites by versatile graphene oxide

Cited by 11 publications

References 33 publications

Novel spatially distributed heating carbon fabric and decoupling of interfacial electricity

Novel spatially distributed heating carbon fabric and decoupling of interfacial electricity

A Study on Through-the-Thickness Heating in Continuous Ultrasonic Welding of Thermoplastic Composites

Directly bonded single lap joints of SiCp/AA2124 composite with glass fiber-reinforced polypropylene: Hole drilling effects on lap shear strength and out-of-plane impact response

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