Mechanical properties of hybrid composites using finite element method based micromechanics

Banerjee, Sayan; Sankar, Bhavani V.

doi:10.1016/j.compositesb.2013.10.065

Cited by 131 publications

(73 citation statements)

References 20 publications

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“…11,12,16 In the present work, regular fiber packing is used, as our focus is on the details of the interface behavior considering the material and interface parameters, rather than on assessing the composite strength and fracture resistance in general. Hexagonal packing of fibers is a widely accepted packing methodology to analyze fibermatrix interactions [17][18][19] and is used in this study.…”

Section: Micromechanical Modelmentioning

confidence: 99%

Micro-scale numerical study of fiber/matrix debonding in steel fiber composites

Sabuncuoğlu

Lomov

2020

Journal of Engineered Fibers and Fabrics

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Fiber/matrix debonding behavior of steel fiber composites is analyzed using a parametric finite element modeling procedure and compared with conventional composites with carbon and glass fibers. Cohesive surfaces are applied to fiber–matrix interface to simulate the debonding behavior, while the interface strength properties of steel fiber are obtained with and without surface treatment. The effect of various parameters on the debonding behavior is investigated, including stress concentrations, fiber diameter, fiber shape, and fiber volume fraction, using the parametric model. The influence of stress concentrations is determined to be much lower than the debonding strength. Debonding damage is more evident in larger fibers compared to smaller ones. Earlier and sudden interface separation is observed with the polygonal steel fibers compared to the circular ones. Increase in the fiber volume ratio increases the debonding opening distance but does not affect the opening angle significantly. The results can be useful for assessing possibilities to use steel fibers to increase toughness of the composites in comparison with glass and carbon reinforcement.

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Section: Micromechanical Modelmentioning

confidence: 99%

Micro-scale numerical study of fiber/matrix debonding in steel fiber composites

Sabuncuoğlu

Lomov

2020

Journal of Engineered Fibers and Fabrics

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“…The virtual testing framework can predict the tensile response of hybrid aligned discontinuous composites accurately (see Fig. 7) and quickly (the model for a specimen with 10 000 fibres runs in less than 30 seconds), and therefore bridges simpler analytical models [6,7,37] and more realistic but computationally expensive FE models [54,55] in the literature.…”

Section: Contribution To the State Of The Artmentioning

confidence: 99%

Virtual testing framework for hybrid aligned discontinuous composites

Henry

Pimenta

2018

Composites Science and Technology

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“…As mentioned previously, the widely used Halpin-Tsai model (used to predict the transverse elastic and shear modulus) is valid for composite models with square unit cells only [14]. Hence, a comparison with the Halpin-Tsai model would not have been a reasonable assessment.…”

Section: Developing Surrogate Models For T 22 and T 32mentioning

confidence: 99%

“…For transverse properties such as E 2 and longitudinal shear modulus G 12 , the Halpin-Tsai equations are popular. However, Halpin-Tsai types of equations are not available for hexagonal unit cells [13,14].…”

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confidence: 99%

Micromechanics of Composites Using a Two-Parameter Model and Response Surface Predictions

Sharma

Sankar

2015

AIAA Journal

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A novel method involving the use of micromechanical analysis to predict elastic constants of a unidirectional fiberreinforced composite is proposed. The method revolves around a model called the two-parameter model. The two parameters are obtained by performing one micromechanical analysis of the composite unit cell along one of its transverse directions. The method involves construction of response surfaces that act as surrogate models, for the prediction of the two parameters, corresponding to any fiber-reinforced composite design that uses a transversely isotropic fiber and an isotropic matrix. Using the two parameters, four of the five elastic constants can be computed. The fifth elastic constant, longitudinal shear modulus, is predicted using a separate response surface. The results indicate that the two-parameter model in conjunction with the response surface makes accurate prediction of composite elastic constants.

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Mechanical properties of hybrid composites using finite element method based micromechanics

Cited by 131 publications

References 20 publications

Micro-scale numerical study of fiber/matrix debonding in steel fiber composites

Micro-scale numerical study of fiber/matrix debonding in steel fiber composites

Virtual testing framework for hybrid aligned discontinuous composites

Micromechanics of Composites Using a Two-Parameter Model and Response Surface Predictions

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