Experimental analysis of additively manufactured thin-walled heat-treated circular tubes with slits using AlSi10Mg alloy by quasi-static axial crushing test

Mohamed, Ahmed; Laban, Othman; Tarlochan, Faris; Khatib, Sami E. Al; Matar, Mohammed S.; Mahdi, E.

doi:10.1016/j.tws.2019.02.022

Cited by 34 publications

(8 citation statements)

References 32 publications

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“…Nevertheless, the present thin-walled tube manufactured with SLM and under solution heat treatment greatly simplify the fabrication process. More importantly, the SEA of AlSi10Mg hexagonal tube obtained in the present work is 12.16 kJ/kg, which is higher than that of the most of circular AlSi10Mg tubes 21) and sinusoidally corrugated AlSi10Mg tubes 22) fabricated with SLM.…”

Section: Resultscontrasting

confidence: 56%

Energy Absorption Behaviors of Laser Additive Manufactured Aluminium Alloy Thin-Walled Tube Tailored by Heat Treatment

Niu

Chen

2021

Mater. Trans.

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Thin-walled metal tubes, because of their low cost, high stiffness and strength combined with a relatively low density, have been extensively applied in transportation vehicle industry as energy absorbers. The traditional methods applied to the metal tube fabrication, however, are time-consuming and materially-inefficient processes. In the present study, taken AlSi10Mg alloy as the model material, the hexagon thin-walled tubes were prepared by Selective laser melting (SLM). The effect of post heat treatment on the energy absorption characteristics of hexagon thin-walled tubes is systematically studied. The results revealed that the subsequent heat treatment significantly improved the energy absorption properties of the hexagonal thin-walled tube, especially the solution heat treatment. Moreover, the energy absorption properties of the AlSi10Mg hexagonal tube obtained in the present work is higher than most of recently reported thin-walled AlSi10Mg tubes fabricated by SLM.

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Section: Resultscontrasting

confidence: 56%

Energy Absorption Behaviors of Laser Additive Manufactured Aluminium Alloy Thin-Walled Tube Tailored by Heat Treatment

Niu

Chen

2021

Mater. Trans.

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“…This is a promising advancement which can potentially be expanded to other additive manufacture processes aside from cold spray forming. For example, [26] studied pipes created from laser sintered powders. A major advantage of this approach was that complex connections, such as slits or petals, could be directly built onto the end of the pipes using this approach.…”

Section: Novel Processesmentioning

confidence: 99%

Manufacturing technologies and joining methods of metallic thin-walled pipes for use in high pressure cooling systems

McNair

Shokrani

Carnevale

et al. 2021

Int J Adv Manuf Technol

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Small diameter thin-walled pipes, typically with a diameter less than 20 mm and a ratio of outer diameter to wall thickness is 20 or above, have increasingly become a key value adding factor for a number of industries including medical applications, electronics and chemical industries. In high-energy physics experiments, thin-walled pipes are needed in tracking detector cooling systems where the mass of all components needs to be minimised for physics measurement reasons. The pipework must reliably withstand the cooling fluid operation pressures (of up to 100 bar), but must also be able to be reliably and easily joined within the cooling system. Suitable standard and/or commercial solutions combining the needed low mass and reliable high-pressure operation are poorly available. The following review of literature compares the various techniques that exist for the manufacture and joining of thin-walled pipes, both well-established techniques and novel methods which have potential to increase the use of thin-walled pipes within industrial cooling systems. Gaps in knowledge have been identified, along with further research directions. Operational challenges and key considerations which have to be identified when designing a system which uses thin-walled pipes are also discussed.

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“…For example, the crashworthiness requirements for electrical vehicles is different from traditional vehicles [1] because additional safety features are required to protect the battery cells. In terms of designing for crashworthiness, a lot of work has been conducted looking into various material, shapes, sizes, and loading conditions [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Several composite sandwich designs such as inserts and foam-core hybrid composites were tested and it was found that these configurations have good energy absorption capabilities [2,6,15,16].…”

Section: Introductionmentioning

confidence: 99%

“…Composite corrugated tubes were also found to have excellent crushing behavior which corresponded to good energy absorption capabilities [5,11,12]. Some researchers [7,8,10] studied metal corrugated tubes produced by traditional manufacturing techniques and by additive manufacturing.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Validation of Numerical Model for Top-Hat Tubular Structure Subjected to Axial Crush

Abdulqadir

Tarlochan

2021

Applied Sciences

Self Cite

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Vehicle crashworthiness is an important aspect to consider when designing a vehicle to ensure the safety of the occupants. Besides this, vehicles are also designed to reduce weight for better fuel economics. One possible approach to reducing weight without compromising vehicle safety is by looking at new designs and usage of composite materials, along with the usage of computational models to reduce time and cost. Hence, this paper displays the experimental results of a carbon fiber reinforced closed top-hat section subjected to both quasi-static and dynamic crushing loading. The results were used to validate the computational model developed in the study. The specimens were made of carbon composite prepregs MTM-44 sheets stacked at the alternative orientation of ±45° and 0°/90°, where 0° direction coincides with the axis of the member. The samples were prepared by using a mold and carbon prepregs under vacuum bagging followed by curing in an autoclave. Trigger initiation was applied to ensure the specimens demonstrated a stable crushing mode of failure during the test. Experimental investigations were carried out under the ambient conditions with different loading conditions, and different kinetic energy ranges (2, 3 and 6 kJ). Experimental data was used to validate the finite element analysis (FEA). The maximum errors obtained between experimental and FEA for mean load, mean energy absorption, and crushing displacement were 13%, 13% and 7%, respectively. The numerically obtained results were in strong agreement with the experimental data and showed that they were able to predict the failure of the specimens. The work also showed the novelty of using such structures for energy absorption applications.

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Experimental analysis of additively manufactured thin-walled heat-treated circular tubes with slits using AlSi10Mg alloy by quasi-static axial crushing test

Cited by 34 publications

References 32 publications

Energy Absorption Behaviors of Laser Additive Manufactured Aluminium Alloy Thin-Walled Tube Tailored by Heat Treatment

Energy Absorption Behaviors of Laser Additive Manufactured Aluminium Alloy Thin-Walled Tube Tailored by Heat Treatment

Manufacturing technologies and joining methods of metallic thin-walled pipes for use in high pressure cooling systems

An Experimental Validation of Numerical Model for Top-Hat Tubular Structure Subjected to Axial Crush

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