Studying the Tensile Behaviour of GLARE Laminates: A Finite Element Modelling Approach

Soltani, Payam; Keikhosravy, Mehdi; Oskouei, Reza Hashemi; Soutis, C.

doi:10.1007/s10443-010-9155-x

Cited by 56 publications

(39 citation statements)

References 28 publications

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“…Based on the statistical analysis two correlations with value equal to 1 for the prediction of the elastic and plastic Young's moduli using fiber volume fraction have been deduced and are given by: = 9242.5 + 29263 For elastic Young's modulus = 9439.1 + 1768. 7 For plastic Young's modulus Another relation for predicting yield strength from the fiber volume fraction is obtained as:…”

Section: Discussionmentioning

confidence: 99%

“…Three general pathways of modeling FMLs have been outlined by [7]. These are micro scale: fibres and matrix are studied individually; meso scale: individual lamina is modeled and analyzed and macro scale: entire laminate is considered to be a homogenized laminate.…”

Section: Finite Element Modelingmentioning

confidence: 99%

“…They used the modified Classical Laminate Theory (CLT) to obtain the stress-strain behavior of developed FMLs analytically. A more recent effort to in this direction has been made by [7] who tried to assess the stress-strain behavior of the available grades of GLARE through Cohesive Zone Modeling (CZM) approach in ANSYS. In the present investigation, the effect of fiber volume fraction on the tensile properties of a novel aluminum (AA 5086) FML based on epoxy and jute fiber has been studied using Finite Element Method.…”

Section: Introductionmentioning

confidence: 99%

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Prediction of Tensile Properties of Novel Natural Fiber Based Fiber Metal Laminates (FMLs) using FEM

Gunwant¹

2018

IJRASET

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The present investigation deals with the prediction of tensile properties of a novel jute fiber based Fiber Metal Laminate (FML). Periodic Micromechanics is used to determine the orthotropic elastic properties of the fiber reinforced epoxy lamina, and the effect of fiber volume fraction on the tensile behavior of the FML is studied using FEM. The elastic and plastic Young's moduli and tensile yield strength of FMLs are determined by the curve fitting technique. The tensile strength obtained through this method is compared to that obtained by the analytical model available in the literature and a very good agreement is observed between the two. It is found that both the Young's moduli improve with an increase in the fiber volume fraction with a simultaneous increase in the tensile yield strength. Correlations for predicting the elastic and plastic Young's moduli as well as the tensile yield strength of the FMLs are also presented. Based on the observations of the present investigation, the FEM can be established to be an imperative tool for the study of the mechanical behavior of the FMLs. Keywords: Fiber Metal Laminates, Periodic micromechanics, FEM, ANSYS I.INTRODUCTION Fiber reinforced composites have replaced metals and alloys in most of the structural applications in the recent years. A more relevant and masterful materials that have recently evolved in the development of advanced composites are the Fiber Metal Laminates (FMLs). An FML tends to take advantage of ductility of engineering metals viz. aluminum, magnesium and their alloys and the high specific properties of fiber reinforced plastics resulting in the evolution of a material having properties superior to its constituents. The FMLs are known to possess excellent impact properties, good blunt notch and residual strengths, flame retardency and good manufacturability. The first commercial use of ARALL (Aramid Reinforced Aluminum Laminates) started in the year 1982 for aircraft wings applications. In the year 1987, another generation of these laminates with the trade name GLARE (Glass fiber Reinforced Aluminum Laminates) was put forth consisting of aluminum alloy sheets and unidirectional or bidirectional reinforced glass fiber/epoxy prepegs. GLARE and ARALL have been the most heavily researched FML till date. The structural performance of FMLs depends upon the stacking sequence, individual lamina properties, orientation of fibres in the lamina [1]. The need of shorter lead time in the manufacturing of composites and incorporating frequent changes in the geometrical properties viz. fiber orientation, stacking sequence and the lamina thicknesses of the laminates has pushed the designers to thrive for novel analytical as well as numerical methods for the same. Use of finite element analysis for the analysis of fiber-metallic laminates (FMLs) has gained tremendous relevance in recent years. Elasto-plastic behavior of an ARALL laminate in combination with the mechanical properties of aluminum and Kevlar was modeled through CLT by [2]. The tensile...

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Section: Discussionmentioning

confidence: 99%

Section: Finite Element Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Prediction of Tensile Properties of Novel Natural Fiber Based Fiber Metal Laminates (FMLs) using FEM

Gunwant¹

2018

IJRASET

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“…Reports on ballistic impact simulation are published, from micro-scale [7,8] to macro one [9][10][11][12][13][14], including simplifying hypotheses as considering a rigid projectile [15].…”

Section: The Modelmentioning

confidence: 99%

Simplified simulation of impact bullet - stratified pack for restraining ballistic tests

et al. 2017

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Abstract. This paper presents a macro FEM isothermal model for simulating the impact of a 9 mm FMJ bullet on a stratified packs in order to restrain the preliminary tests for actual stratified packs made of layers of Twaron LFT SB1plus (Teijin), taking into account the friction between layers and between bullet and layers, in order to obtain the number of layers that arrest the bullet. The layers were considered as an orthotropic material, with maximum equivalent plastic strain of 0.06. The materials are modeled as bilinear isotropic with hardening. The analyzed parameter to validate the model was the number of broken layers. The average value of back face signature for a 12 layer pack was of 19.44 mm recommending it for protection level of II and IIA (NIJ Standard-0101.06-2008).

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“…On the other hand, the correct incorporation of mechanical aspects and inherent phenomenological to the fracture in materials is a key factor for the success and effectiveness of such predictive methodologies applicable to the nu meric analysis of the mechanical integrity of a vast number of structural components and in the most different materials [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Mechanical Fracture Testings

Medeiros¹,

Dias²,

Christofóro³

2012

IJME

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Th is paper deals with the determination of stress intensity factors in a WC-6Co sample through the Finite Elements Method (FEM). A co mpact specimen configuration, used in fracture testings, was numerically modelled with the FEM co mmercial code MARCTM. First, in studying of this specimen was considered a bidimensional strain p lane analysis. Several meshes were used in the tested models and then results were compared with the experimental data, that can be found on technical literature. Finally, a tridimensional co mpact specimen was also modelled and studied. With these results, we were able to understand better the triaxial stress behaviour in the central portion of the specimen. It's hopeful this methodology will be applied in nonconventional fracture mechanics testings, such as a Vickers indentation technique.

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Studying the Tensile Behaviour of GLARE Laminates: A Finite Element Modelling Approach

Cited by 56 publications

References 28 publications

Prediction of Tensile Properties of Novel Natural Fiber Based Fiber Metal Laminates (FMLs) using FEM

Prediction of Tensile Properties of Novel Natural Fiber Based Fiber Metal Laminates (FMLs) using FEM

Simplified simulation of impact bullet - stratified pack for restraining ballistic tests

Numerical Simulation of Mechanical Fracture Testings

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