Finite element analysis for the evaluation of the low-velocity impact response of a composite plate

Ahmad, Furqan; Abbassi, Fethi; Park, Myung Kyun; Jung, Jongwan; Hong, Jung‐Wuk

doi:10.1080/09243046.2018.1510589

Cited by 26 publications

(13 citation statements)

References 17 publications

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“…“Automatic_Surface_to_Surface” contact type is a recommended contact for impact and crash simulations, because automatic contact models check both side of a shell element to avoid penetration. 21 For impactor modelling, MAT020 rigid material model was generally 4–9,13–17 used for an impactor and circular supports. The friction between impactor, circular supports and layers was neglected.…”

Section: Methodsmentioning

confidence: 99%

“…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%

“…Also, some authors used carbon fiber composite specimens under impact loading. Heimbs et al, 7 Maio et al, 8 Ahmad et al 9 and Dogan et al 10 investigated the low-velocity impact behavior of carbon fiber-reinforced composite specimens with single energy level. Studies were completed experimentally and numerically by LS-DYNA software.…”

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%

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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 open hole tensile test with a central hole showed a negligible difference between the drilled-hole and punched-hole specimens with a punch-die clearance of 0.1 mm. However, high-performance CFRP laminates are more sensitive to the out-of-plane impact [6,7,16,17,18]. Therefore, Abdullah et al applied drilling after punching to improve the quality of the punched hole on a CFRP laminate [19].…”

Section: Introductionmentioning

confidence: 99%

Tensile, compressive, and fatigue strength of a quasi-isotropic carbon fiber reinforced plastic laminate with a punched hole

Ueda

Cuong

Yamanaka

et al. 2020

Heliyon

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The mechanical properties of a quasi-isotropic carbon fiber reinforced plastic (CFRP) laminate with a punched hole were investigated. During the punching process, pressure was applied to the laminate through the upper and lower blank holders of a punching machine; the clearance between the punch and blank holders was set to be small to suppress damage in the CFRP laminates. Due to the dragging of plies encountered during punching, the surface of the punched hole was relatively uneven as compared to that of the drilled hole. However, the effect of the uneven surface created during the punching process was not as significant on the tensile and compressive strength of the open hole as compared to the manufacturing damages generated by drilling processes. The stress–number of cycles to failure curves for the open-hole tension–tension fatigue tests also showed comparable results between the punched- and drilled-hole specimens. These results indicate that there were no significant differences in the mechanical properties of CFRP laminates with a punched hole, and thus present the possibility of a highly productive hole-making process using the punching method.

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Experimental and numerical investigation on compression after impact behavior of hygrothermal aged CFRP laminates

Huang

Xie

et al. 2022

Polymer Composites

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In the paper, a detailed experimental and numerical investigation of compression after impact (CAI) behavior of hygrothermal aged T300 985LV carbon/ epoxy composites is presented. Rectangular fabric laminates are damaged by low-velocity impact, and moisture absorption conditioning is carried out. The moisture absorption curves agree with Fick's law, with a moisture equilibrium rate of 0.84% at 1392 h. Then, CAI experiments are carried out on moisture saturated specimens at different temperatures. The effects of hygrothermal environments on CAI strength are obtained with an interpretation of corresponding mechanism. Furthermore, finite element analysis based on hygrothermal mechanics formulation and incremental Newton-Raphson mixed iteration equation is established. The numerical results are in good agreement with the experimental ones, with an accuracy of up to 92%, which demonstrates the effectiveness of the established numerical model. The results show that the CAI strength of 85 RH% hygroscopic saturated laminates is decreased by approximately 12% at 85 C and 17% at 128 C. Additionally, the allowable compression value of 3546 μϵ is obtained for T300 985LV composite laminates, which is useful for applications in civil aircraft design. K E Y W O R D Scompression after impact, finite element analysis, hygrothermal aged, impact damage, moisture absorption | INTRODUCTIONCarbon fiber reinforced plastic (CFRP) is widely used in aerospace, marine and other engineering industries. [1,2] Compared with conventional materials, CFRP is characterized by the advantages of high specific strength, high specific stiffness, and excellent fatigue characteristics. [3][4][5][6][7] The percentage of CFRP used in civil aircraft ranges from 25% for the A380 to 50% for the later B787, which indicates that the usage of composite is increasing in primary components for aircraft structures. [8] Since the environment that the composite structure is exposed to significantly affect its performance, it must be accounted for during design. The most important aspect of the CFRP is temperature and moisture (hygrothermal), [9][10][11][12] which are crucial for understanding these effects and considering them in composite design. In addition, the impact damage is another factor that significantly affects composite properties. The impacts (i.e., tool drop, runway gravel, and hail) cause through-thickness stress waves in

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Finite element analysis for the evaluation of the low-velocity impact response of a composite plate

Cited by 26 publications

References 17 publications

Experimental and numerical behaviors of GFRP laminates under low velocity impact

Experimental and numerical behaviors of GFRP laminates under low velocity impact

Tensile, compressive, and fatigue strength of a quasi-isotropic carbon fiber reinforced plastic laminate with a punched hole

Experimental and numerical investigation on compression after impact behavior of hygrothermal aged CFRP laminates

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