Prediction of effective properties for multilayered laminated composite with delamination: A multiscale methodology proposal

Guinovart-Sanjuán, David; Rodrı́guez-Ramos, Reinaldo; Vajravelu, K.; Mohapatra, R. N.; Guinovart-Dı́az, Raúl; Brito-Santana, Humberto; Tita, Volnei; Sabina, Federico J.

doi:10.1016/j.compstruct.2022.115910

Cited by 3 publications

(3 citation statements)

References 42 publications

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“…Simulation of elastic wave propagation through a fractured zone is a time-consuming and challenging procedure since it must take into account the influence of all the inhomogeneities. This problem can be solved by developing efficient improved numerical methods (e.g., [ 19 , 20 , 21 , 22 , 23 , 24 , 25 ]) or employing models, where the fractured zone with a distribution of cracks is substituted by an equivalent homogeneous or inhomogeneous effective media (e.g., [ 26 , 27 ]). Though some wave phenomena are not taken into account in the models incorporating homogenisation, these models are efficient and suitable for many applications [ 28 , 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Effective Boundary Conditions and Stochastic Crack Distribution for Modelling Guided Waves Scattering by a Partially Closed Interfacial Delamination in a Laminate

Golub

Doroshenko

2023

Materials

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Cohesive and adhesive bindings degrade during operation and maintenance even if contacting materials in a manufactured laminated structure are perfectly matched at the interfaces. Two modelling approaches for describing partially closed delaminations or imperfect contact zones, which often occurs at the interfaces, are examined and considered. To confirm the adequateness of the applicability of the effective spring boundary conditions for guided wave scattering by a finite length delamination, guided wave propagation through a damaged zone with a distribution of micro-cracks is compared with an equivalent cohesive zone model, where the spring stiffnesses for the effective boundary conditions are calculated using the properties of the considered crack distribution. Two kinds of local interfacial decohesion zones with an imperfect contact at the interfaces are considered: uniform partially closed delaminations and bridged cracks. The possibility of the employment of the effective spring boundary conditions to substitute a distribution of micro-cracks is analysed and discussed. Two algorithms of generation of a distribution of open micro-cracks providing characteristics equivalent to the effective boundary conditions are presented and examined. The influence of the characteristics of a delamination on wave characteristics (eigenfrequencies, eigenforms, transmission coefficient) is investigated for several kinds of partially closed delaminations.

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Section: Introductionmentioning

confidence: 99%

Effective Boundary Conditions and Stochastic Crack Distribution for Modelling Guided Waves Scattering by a Partially Closed Interfacial Delamination in a Laminate

Golub

Doroshenko

2023

Materials

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“…Additionally, for laminates with different stacking sequence, delamination damage also can have a predominant role in the mechanical response. 2,3…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, for laminates with different stacking sequence, delamination damage also can have a predominant role in the mechanical response. 2,3 Since there exist many combinations of matrices and fibers, as well as their volume fractions, an experimental program to measure all these macromechanical properties makes structural optimization procedures a very hard task. 4,5 Two alternative approaches can be performed: the application of micromechanical models or a trial to get relations between the macromechanical properties to decrease the number of experimental tests required, like Tsai's modulus.…”

Section: Introductionmentioning

confidence: 99%

Is the out-of-plane shear strength an independent property? A micromechanical perspective about a macromechanical question

Vignoli

2023

Journal of Composite Materials

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For unidirectional laminae, five elastic properties and six strengths are usually required. The goal of this paper is to evaluate if the out-of-plane shear strength is really an independent property or if it is somehow related to the transversal tensile and compressive strengths. The analytical VSPKc micromechanical model is used to derive closed-form relations. Fiber-matrix interface failure due to normal and shear interface tractions is evaluated considering a perfectly brittle behavior. The proposed model is compared with four analytical models from the literature and their estimations are verified against six experimental data. The relations proposed obtained the best results compared with the experimental data, with an average error equal to 8.84%, while the error using the second-ranked model is 17.40%, indicating with good reliability that the out-of-plane shear strength is not an independent property.

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Two-scale asymptotic homogenization analysis of piezoelectric composite materials in generalized curvilinear coordinates

Guinovart,

Chaki,

Guinovart-Díaz

2024

Composites Part B: Engineering

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Prediction of effective properties for multilayered laminated composite with delamination: A multiscale methodology proposal

Cited by 3 publications

References 42 publications

Effective Boundary Conditions and Stochastic Crack Distribution for Modelling Guided Waves Scattering by a Partially Closed Interfacial Delamination in a Laminate

Effective Boundary Conditions and Stochastic Crack Distribution for Modelling Guided Waves Scattering by a Partially Closed Interfacial Delamination in a Laminate

Is the out-of-plane shear strength an independent property? A micromechanical perspective about a macromechanical question

Two-scale asymptotic homogenization analysis of piezoelectric composite materials in generalized curvilinear coordinates

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