Quasi-static axial crushing of thin-walled steel tapered tubes with hybrid geometry: experimental and numerical investigation

Lykakos, Stavros S. A.; Kostazos, P.K.; Manolakos, D.E.

doi:10.1080/13588265.2020.1774037

Cited by 5 publications

(3 citation statements)

References 34 publications

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“…The circular and square cross sections are perhaps the most common tubular shapes for attributes such as ease of fabrication and good crashworthiness characteristics. However, the circular tubes have been found to both crumble under lower loads [9] and absorb larger amounts of energy per unit mass than their square counterparts, regardless of whether the material is ductile (e.g., steel) or brittle (e.g., glass fibre reinforced polymer, GFRP) [7,[10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Crashworthiness Performance of Aluminium, GFRP and Hybrid Aluminium/GFRP Circular Tubes under Quasi-Static and Dynamic Axial Loading Conditions: A Comparative Experimental Study

Lykakos¹,

Kostazos²,

Venetsanos³

et al. 2021

Dynamics

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Offshore structures are exposed to risks of vessel collisions and impacts from dropped objects. Tubular members are extensively used in offshore construction, and thus, there is scope to investigate their crashworthiness behaviour. Aluminium, glass fibre reinforced polymer (GFRP) and hybrid aluminium/GFRP circular tube specimens were fabricated and then tested under quasi-static and dynamic axial loading conditions. Two hybrid configurations were examined: external and internal layers from respectively aluminium and GFRP, and vice versa. The material impregnated with epoxy resin woven glass fabric was allowed to cure attached to the aluminium layer to ensure interlayer bonding. The quasi-static and dynamic tests were conducted using respectively a universal testing machine at a prescribed crosshead speed of 10 mm/min, and a 78 kg drop hammer released from 2.5 m. The non-hybrid configurations (aluminium and GFRP specimens) outperformed their hybrid counterparts in terms of crashworthiness characteristics.

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Section: Introductionmentioning

confidence: 99%

Crashworthiness Performance of Aluminium, GFRP and Hybrid Aluminium/GFRP Circular Tubes under Quasi-Static and Dynamic Axial Loading Conditions: A Comparative Experimental Study

Lykakos¹,

Kostazos²,

Venetsanos³

et al. 2021

Dynamics

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“…The axial compression behavior of these types of structures is important in terms of understanding their crushing behavior and energy absorption capability. There have been many studies in the literature about the crushing behavior of different materials such composite and metallic materials (Guillow et al 2001, Ochelski and Gotowicki 2009, Boria et al 2015, Chiu et al 2015, Kathiresan and Manisekar 2016, Haolei et al 2020, Lykakos et al 2020. Lu et al (2020) investigated the axial compression behavior of thin-walled circular tubes with different diameter to thickness ratios.…”

Section: Introductionmentioning

confidence: 99%

“…Increasing the energy absorption capability of structures has been one of the primary aims in crush box design studies. To achieve this purpose, different designs have been considered to include kirigami structures , origami structures (Ma et al 2019), bio-inspired structures (Liu et al 2017, Tasdemirci et al 2017 and truncated structures (Boria et al 2015, Kathiresan and Manisekar 2016, Lykakos et al 2020, Jiang et al 2018, Li et al 2019. Ochelski and Gotowicki (2009) studied the crushing behaviors of carbon and glass fiber composite tubes for different geometries and test parameters.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study About the Effects of Design and Test Parameters on Crushing Behavior of a Truncated Cone

Ayten¹

2021

Afyon Kocatepe University Journal of Sciences and Engineering

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A numerical study was performed on the crushing behavior of an aluminum truncated cone structure for different design parameters and test speeds. Numerical models were prepared in the Ls-Prepost v4.7.1 software, and simulations were run in the Ls-Dyna solver. The Mat_18 power law plasticity and Mat_20 rigid material models were used for mimicking the behaviors of the aluminum tube and rigid plate, respectively. The effects of three different parameters as the ratio of the bottom and top diameters, contact angle of the rigid plate and test speed were investigated. Force-displacement curves for each case were obtained and evaluated to understand the crushing behaviors of the geometries with the aforementioned parameters. The geometry which had the 2.5 bottom/top diameter ratio performed the highest energy absorption among all geometries.

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Quasi-static axial crushing of multi-walled (spiral) aluminium tubes fabricated by roll bending: Experimental and numerical investigation

Kostazos

Lykakos

Kyritsis

et al. 2021

Thin-Walled Structures

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Quasi-static axial crushing of thin-walled steel tapered tubes with hybrid geometry: experimental and numerical investigation

Cited by 5 publications

References 34 publications

Crashworthiness Performance of Aluminium, GFRP and Hybrid Aluminium/GFRP Circular Tubes under Quasi-Static and Dynamic Axial Loading Conditions: A Comparative Experimental Study

Crashworthiness Performance of Aluminium, GFRP and Hybrid Aluminium/GFRP Circular Tubes under Quasi-Static and Dynamic Axial Loading Conditions: A Comparative Experimental Study

Numerical Study About the Effects of Design and Test Parameters on Crushing Behavior of a Truncated Cone

Quasi-static axial crushing of multi-walled (spiral) aluminium tubes fabricated by roll bending: Experimental and numerical investigation

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