A scalable fiber bundle pullout manufacturing method for data-driven interfacial shear strength measurements of micro and nanomaterials

Leon, Ana De; Tank, Mehul; Sweat, Rebekah

doi:10.1016/j.compscitech.2022.109375

Cited by 6 publications

(3 citation statements)

References 34 publications

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“…There may be two major reasons for the dramatic increase modulus properties between CNT yarns and CNT yarn laminates. First, adding a thin coat of resin to the outside of a CNT yarn has been shown to increase the modulus by up to 20% due to limited resin penetration into the out-layer of CNT bundles in yarns. ,− Second, combining the yarns together and densifying them together with resin during the impregnation and curing process could lead to further resin penetration due to local confinement of resin among densely packed CNT yarns, as well as additional CNT self-assembly and alignment improvements ,, under pressure and lubrication with low-viscosity liquid resin. These elements may improve load transfer among CNT yarns as well as CNT bundles within CNT yarns to bring significant property improvements; however, these hypotheses require further study and validation.…”

Section: Resultsmentioning

confidence: 99%

Scalable High Tensile Modulus Composite Laminates Using Continuous Carbon Nanotube Yarns for Aerospace Applications

Vondrasek

Jolowsky

Park

et al. 2023

ACS Appl. Nano Mater.

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An approach is established for fabricating high-strength and highstiffness composite laminates with continuous carbon nanotube (CNT) yarns for scaled-up mechanical tests and potential aerospace structure applications. Continuous CNT yarns with up to 80% degree of nanotube alignment and a unique self-assembled graphitic CNT packing result in their specific tensile strengths of 1.77 ± 0.07 N/tex and an apparent specific modulus of 92.6 ± 3.2 N/ tex. Unidirectional CNT yarn reinforced composite laminates with a CNT concentration of greater than 80 wt % and minimal microscale voids are fabricated using filament winding and aerospace-grade resin matrices. A specific tensile strength of up to 1.71 GPa/(g cm −3 ) and specific modulus of 256 GPa/(g cm −3 ) are realized; the specific modulus exceeds current state-of-the-art unidirectional carbon fiber composite laminates. The specific modulus of the laminates is 2.76 times greater than the specific modulus of the constituent CNT yarns, a phenomenon not observed in carbon fiber reinforced composites. The results demonstrate an effective approach for fabricating high-strength CNT yarns into composites for applications that require specific tensile modulus properties that are significantly beyond state-of-the-art carbon fiber composites and potentially open an unexplored performance region in the Ashby chart for composite material applications.

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Section: Resultsmentioning

confidence: 99%

Scalable High Tensile Modulus Composite Laminates Using Continuous Carbon Nanotube Yarns for Aerospace Applications

Vondrasek

Jolowsky

Park

et al. 2023

ACS Appl. Nano Mater.

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Section: Materials and Manufacturingmentioning

confidence: 99%

“…A manufacturing process from previous work [23] was performed to prepare pullout samples. The pullout test is known to have a higher variance in results [24] than other testing methods due to uncontrollable factors such as ber defects, surface, and circumference [23], [25]. However, controllable factors such as the ber's embedded length into the matrix and fabrication methods [23] help reduce this variation if these are kept constant as much as possible.…”

Section: Materials and Manufacturingmentioning

confidence: 99%

Data-driven Analysis of Carbon Nanotube Yarn Interfacial Bonding in Extreme Environments

Leon

Vanli²,

Sweat³

2023

Preprint

Self Cite

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Understanding nanocomposite interfacial bonding under environmental conditions will lead to game-changing material applications in energy, aerospace, electronics, and infrastructure applications. Carbon nanotube (CNT) yarns with high-temperature toughened matrices are candidates to be used in aircraft and space components. While operating, these components are exposed to severe temperatures, which alter their performance due to changes near the interfacial area. This study investigates the interfacial shear strength of CNT yarns in multiple matrices from near-cryogenic temperatures up to temperatures above the matrix glass transition temperature. Statistical and data-driven approaches are implemented to understand and quantify the interface between inclusion and matrix. The fiber bundle pullout test is performed at a broad temperature range for fundamental studies of composite material interfaces and their bonding properties in extreme environments. Analysis showed that IFSS decreases with increasing temperature, especially at temperatures near the resin's glass transition temperature. It was shown that the work required to pull out the CNT from all polymer matrices was reduced by more than 60% between temperature extremes.

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Data-driven analysis of temperature effects on interfacial bonding of carbon nanotube yarn composites

De Leon,

Vanli,

Sweat

2023

Int J Adv Manuf Technol

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A scalable fiber bundle pullout manufacturing method for data-driven interfacial shear strength measurements of micro and nanomaterials

Cited by 6 publications

References 34 publications

Scalable High Tensile Modulus Composite Laminates Using Continuous Carbon Nanotube Yarns for Aerospace Applications

Scalable High Tensile Modulus Composite Laminates Using Continuous Carbon Nanotube Yarns for Aerospace Applications

Data-driven Analysis of Carbon Nanotube Yarn Interfacial Bonding in Extreme Environments

Data-driven analysis of temperature effects on interfacial bonding of carbon nanotube yarn composites

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