Impact loading behavior of woven glass fabric polymer composite bi-tubular square sections

Kumar, Arvind; Pradeep, Ch.; Gupta, Suresh; Krishna, G. Vamshi; Harshavardhan, G.

doi:10.1016/j.matpr.2021.05.529

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…Kumar studied the axial impact behavior of the square tubes which made of woven glass fabric reinforced epoxy polymer. It was reported that kinetic energy was mostly absorbed by matrix cracking, delamination, fragmentation, splaying, fracture, and breakage of fiber [6].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigation of Energy Absorption Characteristics of a E-Glass/Epoxy Crash Box

Bilmez,

Taşdemirci

2024

J. Phys.: Conf. Ser.

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Crash boxes are energy absorbing components generally placed at the front end of cars to reduce the amount of damage at especially low impact velocities. The number of electric vehicles has been increasing recently, so weight reduction studies are. For this reason, lighter glass or carbon fiber reinforced composite crash boxes are preferred instead of steel ones. In the current study, the dynamic compression behavior of a rectangular cross-section thin-walled composite crash box was investigated both experimentally and numerically. The main aim of the study was to understand the effective damage modes and monitor the deformation sequence experimentally and numerically. Once the numerical model is verified then it can be further used to reveal the behavior at different impact velocities and geometries. The methodology followed in the study first started with the static mechanical characterization of the composite material. Within the scope of this study, 2×2 twill-woven glass fiber/epoxy crash boxes were produced using the vacuum bagging method. Quasi-static compression and tension tests were carried out in accordance with ASTM D3039 and ASTM D6641 standards. In the numerical part, Radioss finite element package was used with the material model of MAT 25 along with the failure option of Tsai-Wu. Experimental dynamic crushing tests of the crash box was carried out using a custom made drop-weight tester at impact velocity of 4.4 m/s and dropping mass with 450 kg. The material model constants were obtained once the coupon based static and dynamic tests were completed. From the dynamic crushing tests, maximum and mean force values of 225 and 65.0 kN were noted, respectively. There is close agreement between the experimental and numerical results both in terms of force and displacement values. This verified numerical model can further be used to investigate the crushing characteristics at different impact conditions.

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Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigation of Energy Absorption Characteristics of a E-Glass/Epoxy Crash Box

Bilmez,

Taşdemirci

2024

J. Phys.: Conf. Ser.

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“…Composite cones supported higher loads and absorb higher energy with increasing the cone semi-apical angle from 5° to 20° [7]. In recent years, many research work were performed on crushing behavior of bi-tubular components of different cross sections such as triangular [8], circular [9,10], square [11,12], and hybrid circular-square and circular-pentagonal bi-tubular components [13]. Haghi et al [12] performed axial compression on bi-tubular square tubes.…”

Section: Introductionmentioning

confidence: 99%

Performance of tri-tubular conical energy absorber under axial compression

Khalid,

Rohaizan

2024

J. Mech. Eng. Sci.

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Quasi static axial compression loading on tri-tubular cone (TC) has been carried out using LS-DYNA finite element analysis method. Tri-tubular cones of three arrangements; the first arrangement (model TC-1) consists of cone heights of 50 mm, 75 mm and 100 mm where the inner cone is the maximum height. The second arrangement (model TC-2) consists of cone heights of 100 mm, 75 mm, and 50 mm where the outer cone is the maximum height. The third arrangement (model TC-3) consists of three cones of the same height of 100 mm. Cone semi vertex angle of 20o was maintained for all tri-tubular cones tested. Materials used for this research are glass, jute and jute-glass/epoxy. Crashworthiness analyses were performed to investigate the effect of material used, and tri-tubular cone arrangement on peak load. Crush efficiency, and absorbed energy were drawn and discussed. Failure mechanism of the fractured specimens was also discussed. Effect of number of layers and fiber stacking sequence were also investigated. Results show that the cone arrangement TC-3 gives better performance than the cone arrangement TC-2 followed by the cone arrangement TC-1. Maximum load obtained by tri-tubular cone type TC-3 was found higher 7.09% and 14.96% than TC-2 and TC-1 respectively for glass/epoxy. Material saving was achieved by using tri-tubular cones of different heights under compression. Material used has significant influence on the absorbed energy. Failure mode of tri-tubular conical energy absorber was presented and discussed.

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Quasi-static Axial Crushing of E-Glass Fiber Reinforced Epoxy Composite by Different Number of Plies

Kumar

Lau

Chockalingam

et al. 2022

Lecture Notes in Mechanical Engineering

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Impact loading behavior of woven glass fabric polymer composite bi-tubular square sections

Cited by 3 publications

References 13 publications

Experimental and Numerical Investigation of Energy Absorption Characteristics of a E-Glass/Epoxy Crash Box

Experimental and Numerical Investigation of Energy Absorption Characteristics of a E-Glass/Epoxy Crash Box

Performance of tri-tubular conical energy absorber under axial compression

Quasi-static Axial Crushing of E-Glass Fiber Reinforced Epoxy Composite by Different Number of Plies

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