Effect of residual interface stress on thermo-elastic properties of unidirectional fiber-reinforced nanocomposites

Chen, Yongqiang; Zhang, Zhenguo; Huang, Ruchao; Huang, Zhuping

doi:10.1016/j.ijmecsci.2016.04.006

Cited by 12 publications

(4 citation statements)

References 61 publications

(101 reference statements)

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“…Gu et al (2014) have provided analytical forms for the elastic moduli of spherical particulate composites with generalized interfaces. Chen et al (2016) have studied the effect of residual interface stress on thermo-elastic properties of unidirectional fiber composites.…”

Section: Effective Properties Of Unidirectional Fiber Compositesmentioning

confidence: 99%

Generalized interfacial energy and size effects in composites

Chatzigeorgiou

Meraghni

Javili

2017

Journal of the Mechanics and Physics of Solids

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The objective of this contribution is to explain the size effect in composites due to the interfacial energy between the constituents of the underlying microstructure. The generalized interface energy accounts for both jumps of the deformation as well as the stress across the interface. The cohesive zone and elastic interface are only two limit cases of the general interface model. A closed form analytical solution is derived to compute the effective interface-enhanced material response. Our novel analytical solution is in excellent agreement with the numerical results obtained from the finite element method for a broad variety of parameters and dimensions. A remarkable observation is that the notion of size effect is theoretically bounded verified by numerical examples. Thus, the gain or loss via reducing the dimensions of the microstructure is limited to certain ultimate values, immediately relevant for designing nano-composites.

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Section: Effective Properties Of Unidirectional Fiber Compositesmentioning

confidence: 99%

Generalized interfacial energy and size effects in composites

Chatzigeorgiou

Meraghni

Javili

2017

Journal of the Mechanics and Physics of Solids

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“…The nanocomposites' behavior is assumed to be similar to that of the RVE. [49][50][51][52][53][54][55] Figure 1 illustrates the selected RVE for the unit cell micromechanical model. Also, the constituents of the nanocomposite system including, CNT, Al matrix, and interphase zone caused by the chemical reaction between CNT and Al matrix are shown in Figure 1.…”

Section: Rve Of Unit Cell Micromechanical Modelmentioning

confidence: 99%

Elastoplastic behavior of the metal matrix nanocomposites containing carbon nanotubes: A micromechanics-based analysis

Haghgoo

Ansari

Hassanzadeh-Aghdam

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part L:

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The elastoplastic behavior of aluminum (Al) nanocomposites reinforced with aligned carbon nanotubes (CNTs) is characterized using a unit cell micromechanical model. The interphase zone caused by the chemical reaction between CNT and Al matrix is included in the analysis. To attain the elastoplastic stress–strain curve of the nanocomposites, the successive approximation method together with the von Mises yield criterion is employed. The effects of several important factors including the volume fraction and diameter of CNT, material properties, and size of interphase on the elastoplastic stress–strain curve of the nanocomposites during uniaxial tension are studied. The results indicate that the interphase characteristics significantly affect the elastoplastic behavior of the CNT-reinforced Al nanocomposites. It is also found that the yield stress of the nanocomposites rises with increasing CNT volume fraction or decreasing CNT diameter. Besides, the elastoplastic stress–strain curve of the CNT-reinforced Al nanocomposites is presented for multiaxial tension. The initial yield envelopes of the nanocomposites under longitudinal–transverse biaxial tension are provided too. Comparison between the elastic results of the present model with those of other available micromechanical analyses shows a very good agreement.

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“…In contrast with single-phase nanocrystalline materials, nanocomposites have high strength and crack resistance characteristics, which makes them highly attractive for a wide range of engineering applications [26][27][28][29][30][31][32][33]. The mechanical properties of Ni/SiC nanocomposites produced by pulse electrodeposition have been studied by Zimmerman et al [30].…”

Section: Introductionmentioning

confidence: 99%

Influence of Nanoscale Inhomogeneity Incorporating Interface Effect on Crack Nucleation at Intersection of Twin and Grain Boundary in Nanocomposite

Tao

Miao

et al. 2021

Materials

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Nanocracks can generate at the intersection of the deformation twin and grain boundary (GB). A mathematical model is built to study the nanoinhomogeneity effect on nanocrack nucleation and propagation in the nanocrystalline matrix. The boundary condition at the interface between the nanoinhomogeneity and the matrix is modified by incorporating the interface effect. The influence of the nanoinhomogeneity shear modulus, the nanoinhomogeneity radius, the nanoinhomogeneity position, the interface effect, and the external stress on the nanocrack nucleation and propagation is investigated in detail. The results indicate that the stiff nanoinhomogeneity suppresses nanocrack nucleation and propagation and thereby improves the tensile ductility of nanocomposites without loss of their predominantly high strength. Both the positive interface residual tension and interface elastic constants suppress nanocrack nucleation and propagation, while the negative interface residual tension and interface elastic constants promote nanocrack nucleation and propagation. Furthermore, the effect of interface residual tension is rather significant. The interface elastic constants have a weak effect on nanocrack nucleation and propagation.

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Effect of residual interface stress on thermo-elastic properties of unidirectional fiber-reinforced nanocomposites

Cited by 12 publications

References 61 publications

Generalized interfacial energy and size effects in composites

Generalized interfacial energy and size effects in composites

Elastoplastic behavior of the metal matrix nanocomposites containing carbon nanotubes: A micromechanics-based analysis

Influence of Nanoscale Inhomogeneity Incorporating Interface Effect on Crack Nucleation at Intersection of Twin and Grain Boundary in Nanocomposite

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