Effects of strain rate and high temperature environment on the mechanical performance of carbon fiber reinforced thermoplastic composites fabricated by hot press molding

Zhang, Yiben; Sun, Lingyu; Li, Lijun; Wei, Junlei

doi:10.1016/j.compositesa.2020.105905

Cited by 55 publications

(29 citation statements)

References 31 publications

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“…Fiber-reinforced polymer (FRP) composites are increasingly used in impact-resistant devices, automotives, biomedical applications and aircraft structures due to their high strength-to-weight ratios and their potential for impact energy absorption [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ]. FRP composites are often treated as softening materials, i.e., materials that show a reduction of the load-carrying capacity accompanied by increasing (localized) deformations after reaching the maximum load-carrying capacity [ 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

“…There was a strong influence of loading direction and layup configuration since the thickness loading exhibits the maximum peak stress followed by unidirectional laminate loaded along 0

, cross-ply loaded along 0

and unidirectional laminate loaded along 90

in the descending order. Zhang et al [ 10 ] investigated unidirectional, cross-ply, quasi-isotropic and angle-ply carbon/polyamide composites at a number of different strain rates ranging from

to 2200 s

. Different layup laminates exhibited different sensitivities.…”

Section: Introductionmentioning

confidence: 99%

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Review of Strain Rate Effects of Fiber-Reinforced Polymer Composites

Liu

Liu³

et al. 2021

Polymers

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The application of fiber-reinforced polymer (FRP) composites is gaining increasing popularity in impact-resistant devices, automotives, biomedical devices and aircraft structures due to their high strength-to-weight ratios and their potential for impact energy absorption. Impact-induced high loading rates can result in significant changes of mechanical properties (e.g., elastic modulus and strength) before strain softening occurs and failure characteristics inside the strain localization zone (e.g., failure mechanisms and fracture energy) for fiber-reinforced polymer composites. In general, these phenomena are called the strain rate effects. The underlying mechanisms of the observed rate-dependent deformation and failure of composites take place among multiple length and time scales. The contributing mechanisms can be roughly classified as: the viscosity of composite constituents (polymer, fiber and interfaces), the rate-dependency of the fracture mechanisms, the inertia effects, the thermomechanical dissipation and the characteristic fracture time. Numerical models, including the viscosity type of constitutive models, rate-dependent cohesive zone models, enriched equation of motion and thermomechanical numerical models, are useful for a better understanding of these contributing factors of strain rate effects of FRP composites.

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Section: Introductionmentioning

confidence: 99%

“…There was a strong influence of loading direction and layup configuration since the thickness loading exhibits the maximum peak stress followed by unidirectional laminate loaded along 0

, cross-ply loaded along 0

and unidirectional laminate loaded along 90

in the descending order. Zhang et al [ 10 ] investigated unidirectional, cross-ply, quasi-isotropic and angle-ply carbon/polyamide composites at a number of different strain rates ranging from

to 2200 s

. Different layup laminates exhibited different sensitivities.…”

Section: Introductionmentioning

confidence: 99%

Review of Strain Rate Effects of Fiber-Reinforced Polymer Composites

Liu

Liu³

et al. 2021

Polymers

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“…Tensile modulus and strength in the 0° direction increased 13 times and 4.2 times, respectively. Zhang et al reinforced PA6 with 30 vol% or approximately 40 mass% carbon fibers using a similar method and reported an increase in the modulus by approximately 50 times and in tensile strength by 13 times [ 15 ]. Their reinforcement fraction was 16 times higher than in the present study, though their mechanical properties were not improved 16 times.…”

Section: Discussionmentioning

confidence: 99%

“…These methods are appropriate for small production output, high product complexity, product customization, and decentralized production [ 14 ], but not for mass production. The effect of continuous fiber and fabric orientation on hot pressed composites made of polyamide 6 (PA6) were examined by [ 15 ], where a relatively high fiber content and a successful improvement in mechanical properties were achieved, indicating that composites with sufficient fiber content resulting from pressing techniques have superior properties compared to those that are 3D-printed. Traditionally, damaged polymers were repaired through welding or patching, which was limited only to visible damage [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Poly(ethylene-co-methacrylic acid) Reinforced with Carbon Fibers

et al. 2021

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The capability of poly(ethylene-co-methacrylic acid) (E/MAA) to self-heal is well known, however, its mechanical properties are weak. In this study, composites with single and double layers of unidirectional (UD) carbon fibers were prepared by compression molding. Even a low mass fraction of fibers substantially improved the polymer. The flexural and tensile properties were tested at 0°, 45° and 90° fibers direction and compared to those of the matrix. The mechanical properties in the 0° direction proved superior. Flexural properties depended on the reinforcement distance from the stress neutral plane. The tensile modulus in the 0° direction was 13 times greater despite only a 2.5% mass fraction of fibers. However, both tensile modulus and strength were observed to degrade in the 90° direction. Dynamic mechanical analysis showed the dependence of both structure and properties on the thermal history of E/MAA. Tensile tests after ballistic impact showed that the modulus of the self-healed E/MAA was not affected, yet the strength, yield point, and particularly the elongation at break were reduced. A composite with higher fiber content could be prepared by mixing milled E/MAA particles in fibers prior to compression.

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“…There is a growing number of industrial components and structures made by polymers or fiber-reinforced polymer-based composites [ 4 , 5 ]. However, traditional injection molding [ 6 ] and hot press molding [ 7 ] for polymers limits the manufacture of complicated structures. Therefore, additive manufacturing (AM) as a fast-growing rapid prototyping technique was invented to reach higher efficiency in building complex functional parts.…”

Section: Introductionmentioning

confidence: 99%

Effects of Scanning Strategy and Printing Temperature on the Compressive Behaviors of 3D Printed Polyamide-Based Composites

et al. 2020

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In this work, the effects of scanning strategies and printing temperature on mechanical properties and crush behaviors of columns manufactured using the fused deposition modeling (FDM) technique were studied. The results showed that scanning strategy and printing temperature had significant influences on mechanical response and deformation mode of the columns. The columns printed in different scanning strategies showed significant anisotropy due to the preferred orientation of short fibers during the printing process. The columns printed in a circular direction presented the highest compressive force response. The columns printed with carbon fiber-reinforced polyamide in a circular direction showed the final oblique fracture failure mode, in which there were fiber pull-out and matrix pull-apart on fracture surfaces. Different indicators were also used to evaluate the mechanical properties and crushing characteristics of the columns. The carbon fiber reinforcement columns presented the highest energy absorption, and the glass fiber reinforcement columns showed the highest elastic modulus and yield strength. The results indicated that the scanning strategy and printing temperature not only influenced the elastic modulus and yield strength, but also affected the energy absorption performances of the columns.

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Effects of strain rate and high temperature environment on the mechanical performance of carbon fiber reinforced thermoplastic composites fabricated by hot press molding

Cited by 55 publications

References 31 publications

Review of Strain Rate Effects of Fiber-Reinforced Polymer Composites

Review of Strain Rate Effects of Fiber-Reinforced Polymer Composites

Mechanical Properties of Poly(ethylene-co-methacrylic acid) Reinforced with Carbon Fibers

Effects of Scanning Strategy and Printing Temperature on the Compressive Behaviors of 3D Printed Polyamide-Based Composites

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