Multiscale modeling of carbon fiber-reinforced polymer composites in low-temperature arctic conditions

Cross, Dominic R; Tan, K. T.; Pineda, Evan J.; Bednarcyk, Brett A.; Arnold, Steven M.

doi:10.1007/s41939-018-0016-x

Cited by 3 publications

(1 citation statement)

References 25 publications

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“…The NASA Glenn Research Center developed a micromechanics tool called Micromechanics Analysis Code based on the Generalized Method of Cells (MAC/GMC) that contains a module called the MSGMC or MultiScale Generalized Method of Cells that is capable of coupling an arbitrary number of representative unit cells (of arbitrary complexity) across many length scales to determine thermomechanical properties of the overall multiscale structure. The MAC/GMC and MSGMC computational techniques have been validated across multiple studies. ,,− …”

Section: Introductionmentioning

confidence: 99%

Multiscale Modeling of Polyamide 6 Using Molecular Dynamics and Micromechanics

Pisani

Newman

Shukla

2021

Ind. Eng. Chem. Res.

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Polyamide 6 (PA6) is a semicrystalline thermoplastic used in many engineering applications due to its high strength, good chemical resistance, and excellent wear/abrasion resistance. The mechanical properties of PA6 are dependent on two forms of crystallinity (α/γ). Semicrystalline thermoplastics have a hierarchical microstructure spanning length scales, necessitating the use of a multiscale model. Molecular dynamics (MD) simulation with the reactive INTERFACE force field was used to predict the elastic moduli of amorphous PA6. Semicrystalline PA6 was modeled using a multiscale modeling approach originally developed for semicrystalline polyetheretherketone (PEEK). This approach was facilitated by the NASA Glenn Research Center’s micromechanics software MAC/GMC. The inputs to the multiscale model were the elastic moduli of amorphous PA6, as predicted via MD and calculated stiffness matrices from the literature of the PA6 α and γ crystal forms. The multiscale model output was Young’s modulus, shear modulus, and Poisson’s ratio as a function of α and γ crystallinity. The predicted values of Young’s modulus and shear modulus compared well with experiment. The multiscale model predictions showed that the mechanical properties of semicrystalline PA6 with α and γ crystal forms are similar from amorphous to 40% crystalline and diverge after this limit, with the γ PA6 predictions having higher Young’s and shear moduli and lower Poisson’s ratio. Overall, the good agreement with experiment validated the use of the multiscale model for semicrystalline PA6, proving that the multiscale model may be used for semicrystalline polymers beyond PEEK.

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Section: Introductionmentioning

confidence: 99%

Multiscale Modeling of Polyamide 6 Using Molecular Dynamics and Micromechanics

Pisani

Newman

Shukla

2021

Ind. Eng. Chem. Res.

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POSS-polyurethane prepolymer strengthened and toughened CF/epoxy resin composites for room and simulated Arctic ambient temperature

Liu,

Zhang

et al. 2024

Polymer

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Computational Modeling of Hybrid Carbon Fiber/Epoxy Composites Reinforced with Functionalized and Non-Functionalized Graphene Nanoplatelets

et al. 2021

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The mechanical properties of aerospace carbon fiber/graphene nanoplatelet/epoxy hybrid composites reinforced with pristine graphene nanoplatelets (GNP), highly concentrated graphene oxide (GO), and Functionalized Graphene Oxide (FGO) are investigated in this study. By utilizing molecular dynamics data from the literature, the bulk-level mechanical properties of hybrid composites are predicted using micromechanics techniques for different graphene nanoplatelet types, nanoplatelet volume fractions, nanoplatelet aspect ratios, carbon fiber volume fractions, and laminate lay-ups (unidirectional, cross-ply, and angle-ply). For the unidirectional hybrid composites, the results indicate that the shear and transverse properties are significantly affected by the nanoplatelet type, loading and aspect ratio. For the cross-ply and angle ply hybrid laminates, the effect of the nanoplate’s parameters on the mechanical properties is minimal when using volume fractions and aspect ratios that are typically used experimentally. The results of this study can be used in the design of hybrid composites to tailor specific laminate properties by adjusting nanoplatelet parameters.

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Multiscale modeling of carbon fiber-reinforced polymer composites in low-temperature arctic conditions

Cited by 3 publications

References 25 publications

Multiscale Modeling of Polyamide 6 Using Molecular Dynamics and Micromechanics

Multiscale Modeling of Polyamide 6 Using Molecular Dynamics and Micromechanics

POSS-polyurethane prepolymer strengthened and toughened CF/epoxy resin composites for room and simulated Arctic ambient temperature

Computational Modeling of Hybrid Carbon Fiber/Epoxy Composites Reinforced with Functionalized and Non-Functionalized Graphene Nanoplatelets

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