Bending behavior of empty and foam-filled aluminum tubes with different cross-sections

Shojaeifard, M H; Zarei, Hamid Reza; Talebitooti, Roohollah; Mehdikhanlo, M.

doi:10.1016/s0894-9166(12)60057-3

Cited by 36 publications

(10 citation statements)

References 15 publications

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“…In almost all cases, the curves obtained present similarities with the typical deformation mode for circular profiles related by previous research works. 11,14,25 However, the introduction of ribs modifies the curves, especially when the ribs are arranged transversally to the length of the beam (MC-C2, MC-C3, and MC-C). In this way, at the beginning of the elastic regime, the first peak load value was followed by a sudden drop in the bending load.…”

Section: Resultsmentioning

confidence: 99%

“…Similarly, they concluded that an increase in the number of partition plates does not necessarily produce an increase in the E a characteristics. Shojaeifard et al 14 numerically analyzed the energy absorption mechanism of empty and foam-filled aluminum tubes with different cross sections under bending load. The cross sections analyzed were circular, square, and elliptical.…”

Section: Introductionmentioning

confidence: 99%

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Energy absorption of single and multi-cell profiles under bending load considering damage evolution

Estrada

Szwedowicz

Gutierrez-Wing

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part D:

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In this paper, the energy absorption response of single and multi-cell profiles with different cross sections under bending load is presented. Emphasis was given to the modeling of damage initiation criteria and damage evolution. For this purpose, several discrete models of thin-walled structures were developed using Abaqus/Explicit. To obtain reliable results, a numerical study of a double-chambered profile under quasi-static three-point bending was conducted and validated experimentally. The studied structures included profiles with triangular, square, hexagonal, and circular cross-sectional shapes. The beams were fabricated with aluminum alloy EN AW-7108 T6 and modeled with ductile, shear, and Müschenborn-Sonne forming limit diagram damage initiation criteria. From the numerical results, both single and multi-cell profiles show an improvement in crashworthiness performance as their cross sections tend to approach a circle. In this way, an improvement of up to 80.95% in the crush force efficiency (CFE) parameter was obtained. Similarly, the introduction of ribs allowed for an increase in the energy absorption performance of the profiles relative to the single structure (non-ribbed). In this sense, an increase in specific energy absorption (SEA) and CFE values of up to 40% and 69% was calculated. Relative to single profiles, a maximum resistance to bending and an increase in energy absorption are observed when the circular cross section is reinforced in the longitudinal and transverse directions. Finally, with the improvements found, the design of an impact door beam used in the automobile industry is presented and discussed.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Energy absorption of single and multi-cell profiles under bending load considering damage evolution

Estrada

Szwedowicz

Gutierrez-Wing

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part D:

View full text Add to dashboard Cite

show abstract

“…Mohammadiha et al 2 studied the performance of the crash box with a square section, and optimized the structure of the crash box based on the multi-objective optimization method to improve the crashworthiness of the crash box. Shojaeifard et al 3 researched the process of the bumper beam under low-speed impact, and discussed the influence of the crash box’s thickness and stiffener on its performance. Marzbanrad and Keshavarzi 4 made a crash box with aluminum alloy, which was extruded through the elastic boundary condition.…”

Section: Introductionmentioning

confidence: 99%

Multi-objective optimization of a novel crash box with a three-dimensional negative Poisson’s ratio inner core

Wang

Zou

Zhao

2017

Proceedings of the Institution of Mechanical Engineers, Part D:

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The crash box can absorb energy from the beam as much as possible, so as to reduce the collision damage to the front part of the car body and protect the safety of passengers. This work proposes a novel crash box filled with a three-dimensional negative Poisson’s ratio (NPR) inner core based on an inner hexagonal cellular structure. In order to optimize and improve the crash box’s energy absorption performance, the multi-objective optimization model of the NPR crash box is established, which combines the optimal Latin hypercube design method and response surface methodology. Then, the microstructure parameters are further optimized by the multi-objective particle swarm optimization algorithm to obtain an excellent energy absorption effect. The simulation results show that the proposed NPR crash box can generate smooth and controllable deformation to absorb the total energy, and it can further enhance the crashworthiness through the designed optimization algorithm.

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“…This is a well‐known behaviour due to constrained deformation of the foam that does not allow to from a plastic hinge. Therefore, in case of materials with low ductility the failure of the tube is easily reasched . The impact behaviour and failure mechanism of sandwich beams was studied and the Gibson model optimized.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the mechanic behaviours in hollow composite shafts having different fiber reinforcement and orientation angles

Yıldırım

Pıhtılı

2016

Materialwissenschaft Werkst

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This study experimentally investigates the mechanical properties and behaviors of the hollow circular composite shafts, which are widely used in the industry and operated under a variety of environmental influences. Within the context of this study, glass, carbon and kevlar fibers were utilized as fiber materials and epoxy resins were preferred as the matrix material for hollow circular composite shafts. Composite shafts having 80 mm, 200 mm, 250 mm length and different internal diameters were used for three-point bending tests. Composite hollow shafts were manufactured by utilizing filament winding method at different orientation angles (θ = 45°, 60°, 75°, 80°, 88°). The bending behaviors of the hollow circular composite shafts manufactured were repeated separately for each sample in three-point bending tests. The results obtained were evaluated inter se, displayed in graphics and necessary considerations were addressed.

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Bending behavior of empty and foam-filled aluminum tubes with different cross-sections

Cited by 36 publications

References 15 publications

Energy absorption of single and multi-cell profiles under bending load considering damage evolution

Energy absorption of single and multi-cell profiles under bending load considering damage evolution

Multi-objective optimization of a novel crash box with a three-dimensional negative Poisson’s ratio inner core

Investigation of the mechanic behaviours in hollow composite shafts having different fiber reinforcement and orientation angles

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