Identification of material properties of composite sandwich panels under geometric uncertainty

Missoum, Samy; Lacaze, Sylvain; Amabili, Marco; Alijani, Farbod

doi:10.1016/j.compstruct.2017.07.020

Cited by 14 publications

(5 citation statements)

References 21 publications

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“…In general, the modulus of the sandwich panel is related to the face‐core interface, the elastic behaviour of the core and the skin, and the inertial effect between the core and the skin constituents. [ 32,33 ]…”

Section: Resultsmentioning

confidence: 99%

Recycled polyethylene bottle caps as sandwich panel circular honeycomb: Experimental and numerical approach

et al. 2020

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This work describes aluminium skin sandwich panels made of recycled polyethylene (PE) bottle caps as a sustainable honeycomb core. A full factorial design is carried out to identify the effects of the orientation of the caps (single and alternated caps), skin roughness (smooth and rough substrate) and the type of adhesive (epoxy or polyester polymer) on the mechanical properties of the panels. Numerical analysis is performed to better assess the failure mechanisms involved. Sandwich panels made with epoxy adhesive, smooth aluminium skin and single oriented caps obtain greater mechanical properties at failure compared to the alternative levels of the factorial design. Increased results are observed for core shear stress (0.38 MPa), facing stress (56.75 MPa), core shear modulus (16.70 MPa), and flexural modulus (1437.47 MPa). This performance reveals an alternative recycling route for used PE bottle caps in structural and sustainable applications.

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Section: Resultsmentioning

confidence: 99%

Recycled polyethylene bottle caps as sandwich panel circular honeycomb: Experimental and numerical approach

et al. 2020

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“…Probabilistic methods are also directly applicable in the context of nondeterministic quantities that do not have constant statistical descriptors in the time and/or spatial domain through the definition of auto-covariance and autocorrelation. Since these probabilistic methods for the description of multivariate and spatial non-determinism already have reached a high degree of maturity, they are already widely applied in various domains ranging from geotechnical applications [119,96,41,229], the study of (the effect of) random material properties [223,128,27] or the evaluation of flow dynamics [213,169]. As such, probabilistic random fields are often considered as the standard approach to model spatial or multivariate non-deterministic quantities.…”

Section: Multivariate and Spatial Non-determinismmentioning

confidence: 99%

Recent Trends in the Modeling and Quantification of Non-probabilistic Uncertainty

Faes

Moens

2019

Arch Computat Methods Eng

129

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This paper gives an overview of recent advances in the field of nonprobabilistic uncertainty quantification. Both techniques for the forward propagation and inverse quantification of interval and fuzzy uncertainty are discussed. Also the modeling of spatial uncertainty in an interval and fuzzy context is discussed. An in depth discussion of a recently introduced method for the inverse quantification of spatial interval uncertainty is provided and its performance is illustrated using a case studies taken from literature. It is shown that the method enables an accurate quantification of spatial uncertainty under very low data availability and with a very limited amount of assumptions on the underlying uncertainty. Finally, also a conceptual comparison with the class of Bayesian methods for uncertainty quantification is provided.

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“…The method enables researchers to measure the damping parameters and Young's modulus in a wide range of frequencies. Missoum et al 21 used fidelity maps to characterize dynamic properties of materials with uncertain geometric parameters. Experiments on sandwich plates with foam cores proved the effectiveness and accuracy of this method.…”

Section: Introductionmentioning

confidence: 99%

Characterization test on nonlinear vibration of the fibre-reinforced composite thin plate

Wang

Yongle

et al. 2020

Measurement and Control

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In this research, the characterization test on nonlinear vibration of a fibre-reinforced composite thin plate is studied. First, in order to improve the efficiency and precision of the test, a laser scanning vibration system is designed and developed. Then, test methods and procedures of the harmonic distortion and nonlinear time-varying damping of such thin plates are proposed from the time-domain perspective. Corresponding test methods and procedures of nonlinear vibration properties such as the hard/soft stiffness and amplitude-dependent damping are also presented from the frequency-domain perspective. Finally, the TC500 carbon fibre/resin composite plate is selected as an example for the research to carry out a case study. Potential nonlinear vibration phenomena of such plates are characterized by the proposed test methods. It has been proved that the related test system and techniques adopted in this paper can provide an important reference for the establishment of the nonlinear vibration test methodology of fibre-reinforced composite structures.

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Identification of material properties of composite sandwich panels under geometric uncertainty

Cited by 14 publications

References 21 publications

Recycled polyethylene bottle caps as sandwich panel circular honeycomb: Experimental and numerical approach

Recycled polyethylene bottle caps as sandwich panel circular honeycomb: Experimental and numerical approach

Recent Trends in the Modeling and Quantification of Non-probabilistic Uncertainty

Characterization test on nonlinear vibration of the fibre-reinforced composite thin plate

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