Explicit modeling the progressive interface damage in fibrous composite: Analytical vs. numerical approach

Кущ, В. І.; Shmegera, S.V.; Mishnaevsky, Leon

doi:10.1016/j.compscitech.2011.03.005

Cited by 19 publications

(9 citation statements)

References 31 publications

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“…At the location where debonding on the fiber stops (separation point shown by "x"), there is a stress concentration in the matrix. For all of the models with different fiber types, S uts = 75 MPa is reached at this separation point, which is also observed in Kushch et al 16 Thus, after this amount of debonding, it is expected that a crack will be formed and will grow through the inner parts of the matrix.…”

Section: Comparison Of Steel Fibers With Glass and Carbon Fiberssupporting

confidence: 80%

“…al. 16 and the present study. According to Figure 6(a) and (b), where a dimensionless pressure of −0.85 is applied, the damage is about to start and high stresses are observed at a similar singular location around the fiber for both models.…”

Section: Verification Of the Cohesive Zone Applicationsupporting

confidence: 66%

“…In a real composite, the fibers are distributed randomly in the matrix, and there are some studies where the debonding is analyzed in this way. 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%

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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: Comparison Of Steel Fibers With Glass and Carbon Fiberssupporting

confidence: 80%

Section: Verification Of the Cohesive Zone Applicationsupporting

confidence: 66%

Section: Micromechanical Modelmentioning

confidence: 99%

See 1 more Smart Citation

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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“…Similar methods have been used by other researchers to simulate adhesive bonds in composites. 32,33 This traction is a linear function of the separation and is represented in matrix form in equation (1). where t is traction and δ is separation.…”

Section: Numerical Analysis Of Composite Thermo-hydroforming Processmentioning

confidence: 99%

Mechanical analysis of thermo-hydroforming of a fiber-reinforced thermoplastic composite helmet using preferred fiber orientation model

Ahn

Kuuttila

Pourboghrat

2018

Journal of Composite Materials

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The composite thermo-hydroforming process, utilizing heated and pressurized fluid, was used to form an advanced helmet with the Spectra Shield. Experimental results obtained from the forming process show that thermo-hydroforming is a feasible process for manufacturing thermoplastic composite materials. Concurrent to the forming experiments, the forming process was numerically modeled using ABAQUS/CAE. The behavior of the fiber reinforced polymer composite was modeled using the Preferred Fiber Orientation model, which was implemented into the explicit finite element code ABAQUS by writing a User Material Subroutine. The preferred fiber orientation model was further adapted to work with a composite laminate consisting of multiple layers. Numerical results were compared with experimental data to validate the method in terms of predicting the deformed geometry of the multilayer composite, wrinkling, as well as the punch force–displacement curve. Overall, the deformed shape of the fiber-reinforced thermoplastic composite helmet, including the distribution of wrinkles were predicted accurately.

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“…Debonding between plies and individual fibres from the matrix are modelled using cohesive elements. Kushch et al [16] and O'Dwyer et al [17] have used cohesive elements to model debonding of the fibre and matrix. Jalalvand et al [18] have used cohesive elements to model the delamination of plies.…”

Section: Introductionmentioning

confidence: 99%