An experimental and numerical investigation on low velocity impact behavior of composite plates

Berk, Bulut; Karakuzu, Ramazan; İçten, Bülent Murat; Arıkan, Volkan; Arman, Yusuf; Atas, Cesim; Goren, Aytac

doi:10.1177/0021998315622805

Cited by 43 publications

(41 citation statements)

References 19 publications

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“…For delamination between shell element layers, modelling Automatic_One_Way_Surface_to_Surface_Tiebreak 22 was used in this study. This type of contact is based on cohesive zone model which allows for the simulation of crack propagation and has been considered 4,9–12 for tiebreak contact.…”

Section: Methodsmentioning

confidence: 99%

“…In numerous past studies, various LS-DYNA's material models for composite materials have been used. 19 Some of the studies used material model MAT022 composite damage, 5,11 material model MAT054/055 enhanced composite damage, 7,9,10,12,17 material model MAT058 laminated composite fabric [14][15][16][17]20 and material model MAT059 composite_ failure. 4,6,9 In this study, MAT058 material model was preferred for low-velocity impact behavior of glass fiber epoxy composite laminates analyses with LS-DYNA.…”

Section: Methodsmentioning

confidence: 99%

“…At the same time, some experimental and numerical studies were done on analyzing the low-velocity impact responses by comparing the reinforcements of different fibers. Sevkat et al 11 investigated the S2 glass -IM7 graphite fiber-reinforced epoxy hybrid composites, while Berk et al 12 tested the S2 glass/epoxy and aramid/epoxy composite specimens by low-velocity impact test and analyzed numerically with LS-DYNA software. The numerical simulation results were in good agreement with the experimental results.…”

Section: Introductionmentioning

confidence: 99%

“…In this study, the aim is to determine the impact behavior of laminated composites from [AE45/(0/90) 2 ]s oriented glass fiber and epoxy resin at different energy values with drop weight testing machine. Generally low-velocity impact studies show a progressive in-plane damage model 7,9,10,12 for analyzing numerically. In this study, specimens were analyzed using a continuum damage mechanics material model in LS-DYNA.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and numerical behaviors of GFRP laminates under low velocity impact

Yalkın

Karakuzu

Alpyıldız

2020

Journal of Composite Materials

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The aim of the study is to investigate the behavior of laminated composites under low velocity impact both experimentally and numerically. With this aim, the effects of wide range impact energy values between 10 J and 60 J were evaluated experimentally and numerically for the laminate of [±45/(0/90)2]S oriented unidirectional E-glass as reinforcing material and epoxy resin for matrix material. Different impactor velocities were used to maintain the impact energy values and experimental impact tests were generated with drop weight impact testing machine at room temperature. Numerical simulations were performed using LS-DYNA finite element analysis software with a continuum damage mechanics-based material model MAT058. Contact force between impactor and laminate, and transverse deflection at the center of laminate results were obtained as a function of time and used to plot contact force–time curves, contact force–deflection curves and absorbed energy-impact energy curves. Also, delamination area was examined. Finally, numerical results were compared with experimental results and a good correlation between them was observed.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental and numerical behaviors of GFRP laminates under low velocity impact

Yalkın

Karakuzu

Alpyıldız

2020

Journal of Composite Materials

Self Cite

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“…Indeed, VI has already been employed by some authors (Min et al., 8 Yan and Chen, 9 and Berk et al. 10 ). However, these composites are usually of limited thickness and fiber content due to the low pressure used (max.…”

Section: Introductionmentioning

confidence: 99%

The effect of thickness on vacuum infusion processing of aramid/epoxy composites for ballistic application

Nunes

Amorim

Manes

et al. 2018

Journal of Composite Materials

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This work addresses the effect of thickness on the vacuum infusion processing of thick aramid/epoxy composites for impact applications. Composites were produced with 5, 8, 13, 18, and 23 plain-weave fiber layers and characterized using ultrasonic C-scan inspections, optical microscopy, density and constituent content analyses, as well as mechanical tests (flexural and short beam). All composite plates presented good reinforcement-matrix homogeneity, with an overall fiber content of about 60%. A reasonable void content was identified by optical microscopy and density analysis, and they were homogeneously distributed. The composites presented high short beam strength values compared with typical aramid/epoxy laminates for impact applications, and ballistic characteristics comparable to those of composites manufactured by compression or autoclave molding. In summary, optimized vacuum infusion processing was shown to be a suitable alternative to produce thick aramid/epoxy plate composites (up to 12 mm), substituting more costly processing routes.

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Comparison of low‐velocity impact behavior of thick laminated composite structure with experimental and modeling technique

Başoğlu,

Yakar,

Bora

et al. 2023

Polymer Composites

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In this study, the dynamic behavior under low‐veloctiy impact of E‐glass epoxy unidirectional thick laminated composite structure was investigated by numerical methods and compared with experimental results. Thereby, it was aimed to detect the impact behavior of the composite structures with numerical analysis program for reducing experimental tests on these composite structures. LS‐DYNA finite element method (FEM) software was used for numerical modeling. The material model MAT055, which is based on the Tsai–Wu matrix failure modeling on damage mechanics, was selected for the analyses in LS‐DYNA. Low‐velocity impact analyses have been carried out on composite structures at various impact energies as a range of 15–250 J as similar to experiments. From the analysis of the plots, it can be seen that the values of absorption energy provided by the FEM analyses are close to the experimental values at all impact energy levels. It can be determined that the mean difference between the absorption energy levels provided from the experimental and numerical studies is 1.81%. In the same studies, matrix cracking was observed at 50 J impact energy value and full penetration was observed at 250 J impact energy. The error rate between the values obtained using the derived impact energy prediction equation and the values obtained as a result of numerical analysis was maximum 5.26%. Thus, derived equation was found to be reasonable for use in predicting the absorption energy. As a result, these values indicate that the experimental results are agreed well with the numerical results.Highlights Dynamic behavior under impact of thick laminated composite was investigated. Impact analyses were performed at impact energies as a range of 15–250 J. At 250 J impact energy, the composite deformed with full penetration damage. Impact damage areas were calculated according to impact energy levels. It would be useful to use numerical analysis method in terms of cost and time.

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An experimental and numerical investigation on low velocity impact behavior of composite plates

Cited by 43 publications

References 19 publications

Experimental and numerical behaviors of GFRP laminates under low velocity impact

Experimental and numerical behaviors of GFRP laminates under low velocity impact

The effect of thickness on vacuum infusion processing of aramid/epoxy composites for ballistic application

Comparison of low‐velocity impact behavior of thick laminated composite structure with experimental and modeling technique

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