Finite element method analysis of fibre-metal laminates considering different approaches to material model

Smolnicki, Michał; Stabla, Paweł

doi:10.1007/s42452-019-0496-2

Cited by 12 publications

(12 citation statements)

References 5 publications

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“…Apart from experimental studies, numerous analytical studies have been reported for analyzing the performance of SACE. Finite element-based modeling has been proven to be a successful method for analyzing the different processes by disintegrating the problems into simpler and smaller elements [30][31][32][33][34][35]. Bhondwe et al [34] established a FEM-based 2D thermal model for predicting the MRR by observing the temperature fields within the work material.…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental investigations to analyze the micro-hole drilling process in spark-assisted chemical engraving (SACE)

2020

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With the increased utilization of glass in micro-electromechanical systems (MEMS) applications, need is generated to produce micro-features on glass with excellent surface quality, i.e., better hole circularity and less thermal cracks. Sparkassisted chemical engraving (SACE) has proven to be an emerging and reliable technology for micro-machining of glass that includes local joule heating of the work material for its removal. However, some problems need to be covered in the micro-hole drilling process such as low machining depth, low aspect ratio, high thermal cracks, and an increase in machining time with the increase in depth. Moreover, few finite element modeling (FEM) studies have been reported to analyze the material removal aspects in SACE. This present study developed the FEM-based thermal model to analyze the material removal rate (MRR) and investigated the different machining conditions to improve the micro-hole drilling process in SACE. Improvement in depth and aspect ratio can be achieved by using a different tool's shape which variably enhances the flow of electrolytes and thereby increases the formation rate of gas film. Pointed and cylindrical tools were used for micro-drilling operations. MRR, hole entrance diameter, machining depth, aspect ratio, thermal cracks, and machining time were observed under different machining conditions. FEM study revealed that MRR improves with the increase in both the applied voltage and electrolyte concentration. The MRR was predicted by utilizing the plots of temperature distributions and was found in accordance with the experimental results of MRR. The experimental study concluded that the pointed tool produced micro-holes with a higher machining depth and aspect ratio at an improved machining rate, while the cylindrical tool produced micro-holes with a smaller number of thermal cracks and better circularity.

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Section: Introductionmentioning

confidence: 99%

Numerical and experimental investigations to analyze the micro-hole drilling process in spark-assisted chemical engraving (SACE)

2020

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“…Identifying the nature of failure stress and mode of failure (matrix or fiber) are also the features of stress-strain analysis [20]. Different failure criteria are proposed in the literature and in the present work strengthbased theories of failure are considered to identify the FPF [11,13,20]. These are briefly presented below.…”

Section: Review Of Failure Analysismentioning

confidence: 99%

“…A shear deformable finite element (FE) method was used to estimate the FPFs for laminates with different stacking sequences. The developed procedure is compared with the exact solution for various failure criterion [13]. In the similar way a 3D layer wise mixed FE model for thick composite laminated plates has been proposed to predict the FPF.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Approach to Estimate First Ply Failure of Fibre Metal Laminate

Rao¹,

Rao²,

Kumar³

2021

RCMA

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Fibre Metal Laminates (FMLs) are laminates consisting of metal layers and fibre reinforced composite layers. These laminates are designed to improve some specific properties of constituent metals and composites layers. Estimation of First Ply Failure (FPF) Loads of these FMLs is a part in the broad characterization of these materials. A numerical method is developed for the estimation of FPF when these laminates are used as simply supported plates subjected to uniformly distributed load. Various failure criterions are used to identify these loads. The proposed method has been validated with the results of exact (Navier) solution available in the literature. FPFs are estimated for different groups of FMLs based on Aluminum, Titanium and Magnesium layers. The results are presented in the form of non-dimensional FPF and deformation values for various aspect ratios.

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“…Solving the simultaneous equation [Eqs. (20) and (21)] to find the unknowns and substitute back to Eq. (17).…”

Section: Application Of Galerkin Of Weighted Residual To the Governinmentioning

confidence: 99%

“…Galerkin of weighted residual handles circular plate vibration problem without any manipulation of governing equation with very precise results compared to experimental with few iterations. Other recent publications reported on vibration are [20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 97%

Investigation of dynamic behaviour of circular plates resting on Winkler and Pasternak foundations

2019

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Investigating the dynamic behaviour of circular plate resting on elastic foundations are very important in designing of structural systems. This study examines the free vibration analysis of circular plate resting on Winkler and Pasternak foundations. The governing nonlinear partial differential equation is transformed to Duffing equation based on von Kármán geometric nonlinear principle and the nonlinear to linear frequency ratios are obtained while the linear natural frequencies are determined using Galerkin of weighted residual method. Also, the accuracy and reliability of the approximate solutions obtained are demonstrated by comparing the obtained results with available results reported in the literature. The analytical solutions obtained are used for examining the effect of elastic foundations on the dynamic behaviour of the circular plate. From the results, it is observed that, increasing elastic foundation parameter increases the natural frequency. As the nonlinear foundation increases, the nonlinear vibration frequency ratio decreases. The nonlinear Winkler foundation attenuates the amplitude of vibration of the circular plate. It is hoped that, the present study will contribute to the existing knowledge of classical theory of vibration.

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Finite element method analysis of fibre-metal laminates considering different approaches to material model

Cited by 12 publications

References 5 publications

Numerical and experimental investigations to analyze the micro-hole drilling process in spark-assisted chemical engraving (SACE)

Numerical and experimental investigations to analyze the micro-hole drilling process in spark-assisted chemical engraving (SACE)

A Numerical Approach to Estimate First Ply Failure of Fibre Metal Laminate

Investigation of dynamic behaviour of circular plates resting on Winkler and Pasternak foundations

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