Nanowire reinforcement of woven composites for enhancing interlaminar fracture toughness

Castellanos, Alejandra G.; Islam, Shariful; Shuvo, Mai; Lin, Yirong; Prabhakar, Pavana

doi:10.1177/1099636216650989

Cited by 14 publications

(5 citation statements)

References 35 publications

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“…The low densities observed for this type of structures is not seen as a defect in the final part, but instead as an advantage over conventional structural fabrication as their comparable strength to bulk materials yields higher specific strengths, and more efficient structures as a result [20]. Similarly, anisotropy in composite materials is common since these materials are engineered to specific applications where their properties must be tailored to the loading condition they are subjected to [21]. Composite materials that encompass dielectric and piezoelectric properties for the fabrication of devices have gained significant traction in recent years in fields including the aerospace, automotive, and medical industries [22].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of 3D printing induced orthotropic functional ceramics

Chavez

Wilburn

Ibave

et al. 2019

Smart Mater. Struct.

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The orthotropic functional properties of additively manufactured ceramics due to the fabrication process was characterized in this study. Spherical, environmentally benign barium titanate (BaTiO 3 ) powders were fabricated using binder jetting 3D printing. Dielectric and piezoelectric properties of these ceramics were characterized as a function of the printing orientation. The dielectric constant of the samples tested normal to the printing layers was observed to be 20% higher than those tested in the parallel fashion. Similarly, the piezoelectric response was found to be over 35% in the normal orientation. With these results, it was shown that the electroding orientation has a direct influence on the functional properties of additively manufactured ceramics. Overall, with less than 37% of the theoretical density, the average piezoelectric coefficient for the perpendicularly tested ceramics was found to be 152.7 pC N −1 , which is 80% of the theoretical value. The high piezoelectric response obtained with such low densities can lead to the development of more mass efficient, and cost-effective sensing and energy harvesting devices, as well as structures that can be tuned to respond based on the direction of the loads applied.

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Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of 3D printing induced orthotropic functional ceramics

Chavez

Wilburn

Ibave

et al. 2019

Smart Mater. Struct.

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“…The uses of fiber-reinforced composite materials are rapidly increasing day by day in various industries such as construction, automotive, aerospace, and sporting goods for their specific properties such as high strength, corrosion resistance, wear resistance, lightweight, chemically inert, and cheap, etc. [1][2]. Various natural and synthetic fibers are used in composite materials as reinforcements for these characteristics.…”

Section: Introductionmentioning

confidence: 99%

Effect of Fiber Orientation and Volume Fraction on Young's Modulus for Unidirectional Carbon Fiber Reinforced Composites: A Numerical Investigation

Md Sakhawat Hossain,

Md Sayed Anwar,

Md Shariful Islam

et al. 2024

MJCSM

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The modulus of elasticity of unidirectional fiber-reinforced composites greatly depends on the fiber orientation and the fiber volume fraction. This paper investigates the effects of fiber orientation and fiber volume fraction using the commercially available Finite Element Analysis (FEA) software Abaqus. Carbon fiber is the reinforcing material, while epoxy is used as the matrix. Representative Volume Element (RVE) of the unidirectional carbon fiber reinforced composites are modeled in Abaqus, and the unidirectional tensile test is simulated to determine the modulus of elasticity for different fiber orientations and fiber volume fractions. The numerical results are verified by previously published results and by experimental results. It is found that the modulus of elasticity of the composite is maximum when the fiber inclination angle is 0°, i.e., the fibers are placed along the loading direction. As the fiber orientation angle increases, the modulus of elasticity also decreases and is almost constant after 45°. A linear increase in modulus of elasticity is observed for an increase in fiber volume fraction. This model will help the researcher to select the appropriate fiber orientation and volume fraction for a specific application.

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“…[ 29 ] Through ZnO NW incorporation in carbon/epoxy composite, Castellanos et al reported about 67% and 28% improvements in the mode I and II fracture toughness, respectively. [ 30 ] The effects of ZnO NW incorporation have also been studied in glass/epoxy composites. [ 31,32 ] Gowthaman et al reported at least 109% and 430% on average improvements in the interfacial shear strength of single fiber glass/epoxy composites.…”

Section: Introductionmentioning

confidence: 99%

Effects of incorporating ZnO nanowires on the moisture absorption and mechanical properties of composites

2022

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For the first time, this study explores how the incorporation of ZnO nanowires (ZnO NW) in the interface affects moisture absorption and resultant mechanical properties of glass and carbon composites. ZnO NW were coated onto glass and carbon fabrics to modify the fiber/matrix interface in the composites. Moisture absorption, longitudinal tension, short beam shear, and mode‐I fracture tests were conducted. While the moisture absorption was found to decrease the interlaminar shear strength (ILSS) of glass composite, it was found to decrease the ILSS, tensile properties, and fracture toughness of carbon composites. The incorporation of ZnO NW was found to decrease the moisture absorption in both glass and carbon composites, increase the tensile modulus of dry and wet glass composites by ~17%, and prevent the delamination failure of wet carbon composites in tensile tests. Also, ZnO NW incorporation was found to increase the fracture toughness of all composites with a maximum of 141% improvement for dry carbon composite. Importantly, ZnO NW incorporation was believed to increase the stiffness and prevent bending failure of DCB arm in wet carbon composites. The uniqueness of this article includes demonstrating the benefits of ZnO NW to reduce the moisture absorption in composites and to reduce the extent of fiber/matrix interface degradation in wet carbon composites.

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Nanowire reinforcement of woven composites for enhancing interlaminar fracture toughness

Cited by 14 publications

References 35 publications

Fabrication and characterization of 3D printing induced orthotropic functional ceramics

Fabrication and characterization of 3D printing induced orthotropic functional ceramics

Effect of Fiber Orientation and Volume Fraction on Young's Modulus for Unidirectional Carbon Fiber Reinforced Composites: A Numerical Investigation

Effects of incorporating ZnO nanowires on the moisture absorption and mechanical properties of composites

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