Fusion joining of thermoplastic composite wind turbine blades: Lap-shear bond characterization

Murray, Robynne E.; Roadman, Jason; Beach, Ryan

doi:10.1016/j.renene.2019.03.085

Cited by 71 publications

(35 citation statements)

References 26 publications

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“…Therefore, in this study UHMWPE as reinforcement will be constructed in a composite system with HDPE as its matrix. The reason is both materials are thermoplastic, thus the need of adhesive bonds for blade components could be eliminated because it can be manufactured by fusion welding thus the strength and reliability might increase (Murray et al, 2019) Many studies have investigated the use of UHMWPE as reinforcement, but the matrix is limited to the epoxy matrix (Theile & Hoffmann, 2019), which one of them is also conducted in the previous study of this research (Hidayah, 2019). The reports about UHMWPE/HDPE composite in terms of mechanical properties for windmill blades applications have generally been lacking.…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Curing Pressure and Duration on Mechanical Strength of Ultrahigh Molecular Weight Polyethylene/High-Density Polyethylene Composite as An Alternative Material for Windmill Turbine

Hidayah

Boss²

2020

Rekayasa

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The use of steel in building or construction manufacture continues to decrease, owing in part to the sustainability and mechanical properties of fibers which have higher strength in minimum weight than steel. This preliminary study was defined to evaluate the mechanical properties of high-performance fibers, especially ultrahigh molecular weight polyethylene (UHMWPE), in terms of the composite to be the main material of windmill turbines. It was UHMWPE as reinforcement and high-density polyethylene (HDPE) as a matrix in this composite system. The composites were processed in a variety of pressure and duration (50 to 165 bar and 10 minutes to 48 hours). The mechanical strength was tested by 3-point bending tests to measure the interlaminar shear strength, shear modulus, and bending strength. The result showed a significant difference in properties of the composite which is higher pressure and longer duration obtained a higher value of mechanical strength.

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Section: Introductionmentioning

confidence: 99%

“…Therefore, the use of thermoplastic resin is necessary. The advantage of thermoplastic resins in windmill blades is their low manufacturing cost due to its recyclability and room temperature cure (Murray et al, 2019;Ramirez-Tejeda et al, 2016). One of the thermoplastic resins is HDPE.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Curing Pressure and Duration on Mechanical Strength of Ultrahigh Molecular Weight Polyethylene/High-Density Polyethylene Composite as An Alternative Material for Windmill Turbine

Hidayah

Boss²

2020

Rekayasa

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“…The referred fusion bonding techniques have been successfully employed in TPC with reasonable results, taking advantage of their higher fracture toughness and better chemical, impact and damage tolerance. Applications include joints in plastic pipes, medical devices, wind turbine blades, and aircraft and boat structures [ 38 , 39 , 42 , 43 , 44 , 45 , 46 ]. Large-scale applications have also been successfully implemented using resistance and induction welding with reduced assembly time [ 47 ].…”

Section: Introductionmentioning

confidence: 99%

Thermoplastic Composites and Their Promising Applications in Joining and Repair Composites Structures: A Review

2020

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Thermoset fiber reinforced composites, widely used in current structural applications, have complex repair procedures and generates significant amounts of scrap due to its recycling difficulties, which does not comply with the most recent environmental restrictions. These disadvantages may be overcome by using a thermoplastic matrix phase, which is very suitable to be joined and repaired by local melting, making the composite material fully recyclable. This work presents a literature review on the joining methods applicable to thermoplastic based composites and their potential applications to be used as repair procedures in structural elements. The effectiveness of selected adhesive and fusion bonding techniques for several thermoplastic composite systems is evaluated by a comparative study based on the joints’ strength and toughness results available in the literature. This work focuses on the three most promising fusion bonding techniques: Resistance welding, induction welding, and ultrasonic welding. The advantages and drawbacks for each one of these processes are discussed, as well as their suitability for several specific structural applications. In addition, several discordant aspects for each welding technique are identified and the corresponding recommendations are discussed. A compilation of analytical models for the mechanisms of heat generation and transient heat transfer modelling is also presented for each fusion bonding process in order to promote their application in numerical modelling.

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“…A research study was carried out on the fusion bonding of the Elium ® composite by Murray et al [42]. In this research, resistance welding with different heating elements and induction welding techniques were used to weld the Glass fiber Elium ® composites for wind turbine blade applications.…”

Section: Introductionmentioning

confidence: 99%

Investigation on Ultrasonic Welding Attributes of Novel Carbon/Elium® Composites

et al. 2020

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Joining large and complex polymer-matrix composite structures is becoming increasingly important in industries such as automobiles, aerospace, sports, wind turbines, and others. Ultrasonic welding is an ultra-fast joining process and also provides excellent joint quality as a cost-effective alternative to other joining processes. This research aims at investigating the welding characteristics of novel methyl methacrylate Elium ® , a liquid thermoplastic resin. Elium ® is the first of its kind of thermoplastic resin, which is curable at room temperature and is suitable for mass production processes. The welding characteristics of Elium ® composites were investigated by optimizing the welding parameters with specially designed integrated energy directors (ED) and manufactured using the Resin transfer molding process. The results showed a 23% higher lap shear strength for ultrasonically welded composite joints when compared to the adhesively bonded joints. The optimized welding time for the ultrasonic welded joint was found to be 1.5 s whereas it was 10 min for the adhesively bonded joint. Fractographic analysis showed the significant plastic deformation and shear cusps formation on the fractured surface, which are typical characteristics for strong interfacial bonding.

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Fusion joining of thermoplastic composite wind turbine blades: Lap-shear bond characterization

Cited by 71 publications

References 26 publications

The Effect of Curing Pressure and Duration on Mechanical Strength of Ultrahigh Molecular Weight Polyethylene/High-Density Polyethylene Composite as An Alternative Material for Windmill Turbine

The Effect of Curing Pressure and Duration on Mechanical Strength of Ultrahigh Molecular Weight Polyethylene/High-Density Polyethylene Composite as An Alternative Material for Windmill Turbine

Thermoplastic Composites and Their Promising Applications in Joining and Repair Composites Structures: A Review

Investigation on Ultrasonic Welding Attributes of Novel Carbon/Elium® Composites

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