On the effect of inter-laminar contact on the dynamics of locally delaminated FRP strengthened walls

Elmalich, Dvir; Rabinovitch, Oded

doi:10.1016/j.ijnonlinmec.2015.07.003

Cited by 11 publications

(4 citation statements)

References 31 publications

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“…Dvir Elmalich, et.al. [5] studies the effect of the inter-laminar contact and its temporal variation on the behavior of FRP strengthened walls with delaminated regions. The paper adopts an analytical approach that unifies the displacement and stress fields of sub-regions where the delaminated faces are in contact with ones where the layers are free of contact.…”

Section: IImentioning

confidence: 99%

A Review on Sandwich Beam

Ali¹,

Patil²

2019

IJEAST

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Section: IImentioning

confidence: 99%

A Review on Sandwich Beam

Ali¹,

Patil²

2019

IJEAST

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“…In the last three decades, a lot of researchers have focused on the study of damage detection based on vibration methods. [18][19][20][21][22][23] In this study, to detect the presence of ML core defects, a non-destructive damage detection method 24,25 based on vibration responses is analysed. The main objective of this work is to investigate the effect of ML imperfections on the modal dynamic responses of composite sandwich structures with ML core, using a finite element (FE) model implemented in Abaqus/ Standard.…”

Section: Introductionmentioning

confidence: 99%

“…In the last three decades, a lot of researchers have focused on the study of damage detection based on vibration methods. 18–23…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of the dynamic frequency responses of damaged micro-lattice core sandwich plates

Braun

Iváñez

Aranda-Ruiz

2019

The Journal of Strain Analysis for Engineering Design

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In this work, a numerical analysis of the dynamic frequency responses of sandwich plates with micro-lattice core is presented. The finite element analysis is implemented in the commercial software Abaqus/Standard, calculating the natural frequencies and eigenmodes of sandwich plates containing defects on the micro-lattice structure. In order to include the presence of defects, an aleatory algorithm is developed in MATLAB. The effect of the damage percentage, cell type, cell size and material on the frequency and modal responses of the sandwich plates is highlighted. Results show that the dynamic frequency response may be useful for analysing practical issues related to non-destructive damage identification of imperfections in the micro-lattice core of sandwich structures.

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“…This model has also been used in [74,75] to study the effect of the debonding size on the transient dynamic response and the stress state in sandwich plates. Other contact models addressed to discovering the role of interlaminar contact on the nonlinear dynamics of sandwich and laminated panels accounting for geometrical nonlinearity have been proposed in [76][77][78]. A nonlinear contact model within an implicit approach has been elaborated in [79,80] to explore the dynamics of sandwich panels with debonding, which are subjected to harmonic forces.…”

Section: Introductionmentioning

confidence: 99%

Linear and Nonlinear Dynamic Analyses of Sandwich Panels with Face Sheet‐to‐Core Debonding

Burlayenko

2018

Shock and Vibration

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A survey of recent developments in the dynamic analysis of sandwich panels with face sheet-to-core debonding is presented. The finite element method within the ABAQUS6 code is utilized. The emphasis is directed to the procedures used to elaborate linear and nonlinear models and to predict dynamic response of the sandwich panels. Recently developed models are presented, which can be applied for structural health monitoring algorithms of real-scale sandwich panels. First, various popular theories of intact sandwich panels are briefly mentioned and a model is proposed to effectively analyse the modal dynamics of debonded and damaged (due to impact) sandwich panels. The influences of debonding size, form, and location and number of such damage incidents on the modal characteristics of sandwich panels are shown. For nonlinear analysis, models based on implicit and explicit time integration schemes are presented and dynamic responses gained with those models are discussed. Finally, questions related to debonding progression at the face sheet-core interface when dynamic loading continues with time are briefly highlighted.

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On the effect of inter-laminar contact on the dynamics of locally delaminated FRP strengthened walls

Cited by 11 publications

References 31 publications

A Review on Sandwich Beam

A Review on Sandwich Beam

Numerical analysis of the dynamic frequency responses of damaged micro-lattice core sandwich plates

Linear and Nonlinear Dynamic Analyses of Sandwich Panels with Face Sheet‐to‐Core Debonding

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