Theoretical development and numerical investigation on energy absorption behavior of tapered multi-cell tubes

Mahmoodi, Alireza; Shojaeefard, Mohammad Hassan; Googarchin, Hamed Saeidi

doi:10.1016/j.tws.2016.01.019

Cited by 76 publications

(15 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mahmoodi et al. [9] investigated the behavior of conical multi-cell to augment energy absorption and the result of this study indicate that with an increase in number of cells, conical angles and thickness, the energy absorption and initial peak crushing force was increased. The other studies have discussed about two types of optimized nested absorbers and standard nested absorbers that examine the lateral dynamic crushing by drop hammer, this study has been reviewed by Olabi et al.…”

Section: Introductionmentioning

confidence: 88%

Investigation of the numerical, experimental, statistical and optimization of thin-walled energy absorber with novel configuration using response surface method under axial loading

Bigdeli

Nouri

2018

Jnl of Sandwich Structures & Materials

View full text Add to dashboard Cite

In this study, aluminum thin-walled cylindrical absorbers for crashworthiness are investigated to introduce a novel system with better energy absorption and crushing characteristics under quasi-static axial compressive loading. The inside of the thin-walled cylinders is meshed with a square welded from vertices to the thin-walled cylinder. Here, the response surface method, which is one of the design of experiments techniques has been used to examine the effect of the parameters on energy absorption, initial peak crushing force, specific energy absorption per unit mass and energy absorption per length. The variables of thickness (t), height (h) and length of square (l) of the thin-walled cylinder were considered in three levels and initial peak crushing force, specific energy absorption per unit mass and energy absorption per length were selected as response. The specimens were analyzed under a quasi-static compressive test at a constant speed of 10 mm/min. Subsequently, for further investigation, the experimental results were compared with those obtained from the finite element simulation using Abaqus software, which indicated desirable accuracy. To decrease the solution time in this numerical analysis, the speed was set at 0.5 m/s. Finally, the experimental results were compared with the simulation ones, which showed acceptable compatibility. Further, there are the equations obtained from the multi-objective optimization testing design. The results indicated a linear relationship of thickness with responses, nonlinear relationship of height with responses, linear relationship of length of square with initial peak crushing force, and nonlinear relationship with specific energy absorption per unit mass and energy absorption per length.

show abstract

Section: Introductionmentioning

confidence: 88%

Investigation of the numerical, experimental, statistical and optimization of thin-walled energy absorber with novel configuration using response surface method under axial loading

Bigdeli

Nouri

2018

Jnl of Sandwich Structures & Materials

View full text Add to dashboard Cite

show abstract

“…Wu et al [39] studied the energy absorption characteristics of five-cell tubes by experiments and numerical simulations, and the influence of the cross-sectional shape was studied. Mahmoodi [40] derived a formula for the mean crushing load of a tapered multi-cell tube and discussed the effect of the number of cells. The results revealed that an increase in the taper angle, wall thickness and number of cells in the cross-section would enhance the crashworthiness of the structure.…”

Section: Plos Onementioning

confidence: 99%

An investigation on the energy absorption characteristics of a multi-cell hexagonal tube under axial crushing loads

Yue

et al. 2020

PLoS ONE

View full text Add to dashboard Cite

A multi-cell tube enhances the energy absorption considerably compared to the absorption of a single tube under the same conditions. A novel tube configuration, namely, a multi-cell hexagonal tube, was proposed in this paper. The multi-cell tubes consist of three basic elements: a 2-panel element and two 3-panel elements (I and II). Simplified super folding element theory was utilized to estimate the energy dissipation of the basic elements. Based on this estimation, a theoretical expression for the mean crushing force was developed for the proposed tubes. The relative errors between a simulation, an experiment and theoretical results were no more than 5%. The effects of the hexagonal tube size and wall thickness on the crashworthiness of the multi-cell tubes were investigated. To a certain extent, the energy absorption and peak crushing force increased as the tube size and thickness increased. The response surface method (RSM) and the multi-objective non-dominated sorting genetic algorithm (NSGA-II) were used to improve the crashworthiness of the tube, and Pareto fronts were achieved. Finally, it was concluded that the optimal solution is C = 45 mm, t1 = 3.0 mm, and t2 = 2.35 mm, and the corresponding SEA and PCF were 16.52 kJ/kg and 411.36 kN, respectively.

show abstract

“…The multi-cell configurations was applied to the various cross-sectional shapes including hexagonal [46], triangular [41], square [42], [90]- [94], circular [56], [95], [96] octagonal [85], and tapered [97] tubes. The studies on the multi-cell tubes have revealed that these structures are very weight-effective components with extraordinary energy absorption capability.…”

Section: Multi-cell Tubesmentioning

confidence: 99%

On the crashworthiness performance of thin-walled energy absorbers: Recent advances and future developments

Baroutaji

Sajjia

Olabi

2017

Thin-Walled Structures

524

135

View full text Add to dashboard Cite

Over the past several decades, a noticeable amount of research efforts has been directed to minimising injuries and death to people inside a structure that is subjected to an impact loading.\ud \ud Thin-walled (TW) tubular components have been widely employed in energy absorbing structures to alleviate the detrimental effects of an impact loading during a collision event and thus enhance the crashworthiness performance of a structure.\ud \ud Comprehensive knowledge of the material properties and the structural behaviour of various TW components under various loading conditions is essential for designing an effective energy absorbing system.\ud \ud In this paper, based on a broad survey of the literature, a comprehensive overview of the recent developments in the area of crashworthiness performance of TW tubes is given with a special focus on the topics that emerged in the last ten years such as crashworthiness optimisation design and energy absorbing responses of unconventional TW components including multi-cells tubes, functionally graded thickness tubes and functionally graded foam filled tubes.\ud \ud Due to the huge number of studies that analysed and assessed the energy absorption behaviour of various TW components, this paper presents only a review of the crashworthiness behaviour of the components that can be used in vehicles structures including hollow and foam-filled TW tubes under lateral, axial, oblique and bending loading

show abstract

Theoretical development and numerical investigation on energy absorption behavior of tapered multi-cell tubes

Cited by 76 publications

References 22 publications

Investigation of the numerical, experimental, statistical and optimization of thin-walled energy absorber with novel configuration using response surface method under axial loading

Investigation of the numerical, experimental, statistical and optimization of thin-walled energy absorber with novel configuration using response surface method under axial loading

An investigation on the energy absorption characteristics of a multi-cell hexagonal tube under axial crushing loads

On the crashworthiness performance of thin-walled energy absorbers: Recent advances and future developments

Contact Info

Product

Resources

About