Axial splitting of empty and foam-filled circular composite tubes – An experimental study

Rezaei, Bahman; Niknejad, Abbas; Assaee, H.; Liaghat, Gholamhossein

doi:10.1016/j.acme.2014.09.003

Cited by 26 publications

(7 citation statements)

References 16 publications

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“…The concept of introducing structural foam cores to further enhance the mechanical performance of these novel alternative deformation modes has received some attention in recent years [ 49 , 50 ]. Near-constant reaction forces were experimentally achieved for extruded metallic tubing subjected to axial splitting with simultaneously occurring uniform compression of solid [ 51 ] and sandwiched [ 52 , 53 ] aluminum-based Alulight ® (Alulight GmbH, Ranshofen, Austria) internal foam cores.…”

Section: Introductionmentioning

confidence: 99%

Influence of Extruded Tubing and Foam-Filler Material Pairing on the Energy Absorption of Composite AA6061/PVC Structures

Magliaro,

Mohammadkhani,

Rahimidehgolan

et al. 2023

Materials

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There is accelerating demand for energy-absorbing structures fabricated from lightweight materials with idealized, near-constant force responses to simultaneously resolve the engineering challenges of vehicle mass reduction and improved occupant safety. A novel compounded energy dissipation system composed of AA6061-T6 and AA6061-T4 tubing subjected to hybrid cutting/clamping and H130, H200 and H250 PVC foam compression was investigated utilizing quasi-static experiments, finite element simulations and theoretical modeling. Identical structures were also subjected to axial crushing to compare with the current state of the art. The novel cutting/foam crushing system exhibited highly stable collapse mechanisms that were uniquely insensitive to the tube/foam material configuration, despite the disparate material properties, and exceeded the energy-absorbing capacity and compressive force efficiency of the axial crushing mode by 14% and 44%, respectively. The simulated deformation profiles and force responses were consistent with the experiments and were predicted with an average error of 12.4%. The validated analytical models identified numerous geometric/material configurations with superior performance for the compounded AA6061/PVC foam cutting/foam crushing system compared to axial crushing. An Ashby plot comparing the newly obtained results to several findings from the open literature highlighted the potential for the compounded cutting/foam crushing system to significantly outperform several alternative lightweight safety systems.

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Section: Introductionmentioning

confidence: 99%

Influence of Extruded Tubing and Foam-Filler Material Pairing on the Energy Absorption of Composite AA6061/PVC Structures

Magliaro,

Mohammadkhani,

Rahimidehgolan

et al. 2023

Materials

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“…In the design of suchsensitive elements as the loading conditions, the geometry of the section and the type ofmaterial are the major considerations [6][7][8][9][10]. In recent decades, many scientists have considered the effect of these elements on the energy absorption behavior of axially crushed profiles experimentally, numerically, and analytically [11][12][13][14][15][16][17][18]. With regard to the geometry, studies have unanimously recognized that thin-walled circular sections show incomparably the best energy absorption behavior [3,[19][20][21][22], which is depends heavily on the type of material in theprofile.…”

Section: Introductionmentioning

confidence: 99%

Quasi-static and low-velocity impact behavior of the bio-inspired hybrid Al/GFRP sandwich tube with hierarchical core: Experimental and numerical investigation

Tarafdar

Liaghat

Ahmadi

et al. 2021

Composite Structures

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“…The number of laminated layers with a considerable length of specimen contributes to the higher energy dissipated capability. Rezaei et al [23] studied the effect of the size of the inner diameter and the number of layers on the cylindrical E-glass/epoxy composite tubes with the same other parameters. It concluded that the energy absorption capacity increases up to 31.20% with the increase of the inner diameter size for the cylindrical specimen from 40 to 50 mm, as well as when an increase laminate plies up to double times results increment of steady crushing force up to three-time and SE up to 1.39 times.…”

Section: Introductionmentioning

confidence: 99%

Effect of Geometric Shape on the Crushing Performance of Natural Jute Mat/Epoxy Specimens Under Axial Quasi-Static Compression

Hamza¹,

Tjprc²

2020

IJMPERD

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The interest in the using of natural composite has been increased significantly in recent years in many engineering fields due to their distinctive characteristics; these as low weights, high-energy dissipation ability, and it's considered ecofriendly. In this paper, an experimental investigation is done on the effect of structure geometry on the crashworthiness characteristics of woven jute mat/epoxy composite specimens. The main objective is to understand the influence of the geometrical shape, and layers numbers on the energy absorption of composite specimens under uniaxial quasi-static loading. The twelve hollow specimens were manufactured by combination of manual lay-up and vacuum bladder moulding technique using bi-directional natural jute mat (with two and three layers) and epoxy resin, each with 50mm inner diameter and 100mm length. Three different cross-sectional shapes were used; the hexagonal, octagonal, and decagonal of specimens. From the current unique experiment, it was exhibited most of the composite samples demonstrated stable and progressive deformation with acceptable repeatability during the test process. It also showed that the deformation characteristics and the energy absorption of the octagonal cross-section shape are better than the other cross-section shapes such as hexagonal and decagonal cross-sections shapes. Furthermore, the three laminated layers contributed to high specific energy absorption (SE) and better crushing efficiency (ɳc) for each profile. Overall, the octagonal pattern configuration with three plies can be considered as optimal for crashworthiness of structure application compared to other composite samples.

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Axial splitting of empty and foam-filled circular composite tubes – An experimental study

Cited by 26 publications

References 16 publications

Influence of Extruded Tubing and Foam-Filler Material Pairing on the Energy Absorption of Composite AA6061/PVC Structures

Influence of Extruded Tubing and Foam-Filler Material Pairing on the Energy Absorption of Composite AA6061/PVC Structures

Quasi-static and low-velocity impact behavior of the bio-inspired hybrid Al/GFRP sandwich tube with hierarchical core: Experimental and numerical investigation

Effect of Geometric Shape on the Crushing Performance of Natural Jute Mat/Epoxy Specimens Under Axial Quasi-Static Compression

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