Axial crushing of metal foam-filled square columns: Foam density distribution and impactor inclination effects

Shahbeyk, Sharif; Vafai, A.; Petrinić, Nik

doi:10.1016/j.tws.2005.09.002

Cited by 16 publications

(9 citation statements)

References 14 publications

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“…The performance of foam-filled tubes was also evaluated under oblique loading in many studies [114], [117], [119], [120], [202]- [204].…”

Section: Oblique Loadingmentioning

confidence: 99%

“…Generally, the energy absorption parameters including peak load and mean load of foam-filled tubes decrease significantly with increasing the load angle [114], [117]. The global bending mode is the predominant mode for such components which causes a huge reduction in the energy absorption capacity [117], [204]. The foam density has an effect on the crashworthiness behaviour of foam-filled tube under oblique loading where the higher foam density yields higher specific energy absorption and higher peak loads [120].…”

Section: Oblique Loadingmentioning

confidence: 99%

“…The foam density has an effect on the crashworthiness behaviour of foam-filled tube under oblique loading where the higher foam density yields higher specific energy absorption and higher peak loads [120]. However, the foam-filled components with higher foam density undergo a global bending mode under a smaller loading angle [204].…”

Section: Oblique Loadingmentioning

confidence: 99%

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

Baroutaji

Sajjia

Olabi

2017

Thin-Walled Structures

524

135

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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

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“…The performance of foam-filled tubes was also evaluated under oblique loading in many studies [114], [117], [119], [120], [202]- [204].…”

Section: Oblique Loadingmentioning

confidence: 99%

Section: Oblique Loadingmentioning

confidence: 99%

See 1 more Smart Citation

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

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“…The outer wall thickness t 1 , inner wall thickness t 2 and foam density ρ f are taken as the design variables, which range from 0.6 to 3.0 mm, from 0.6 to 3.0 mm and from 0.2 to 0.6 g/cm 3 , respectively. In general mechanical design, a normal distribution is widely assumed and often used in accounting for uncertainties of the design variables [37,69] …”

Section: Crashworthiness Optimization Mathematical Modelmentioning

confidence: 99%

Crashworthiness design of foam-filled bitubal structures with uncertainty

Fang

Gao

Sun

et al. 2014

International Journal of Non-Linear Mechanics

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“…In order to improve the energy absorbing performance, the structural benefit and weight saving were investigated by inserting a lightweight material inside empty tubes (Abramowicz and Wierzbicki, 1988). For example, earlier studies Seitzberger et al, 2000;Santosa et al, 2000;Shahbeyk et al, 2005) considered aluminum foams. When the foam-filled structures were crushed, it revealed that the mean crushing load significantly increased due to the interaction between the tube wall and filler material.…”

Section: Introductionmentioning

confidence: 99%

Role of multi-layer pyramidal truss cores as an inner material of energy absorbing structures

Kim

Kang

Lim

2019

Lat. Am. j. solids struct.

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In this study, finite element analysis was performed to investigate the feasibility of multi-layered pyramidal truss structures as a filler material of energy absorbing tubes. Rectangular tubes with the filler and empty tubes were compressed at a constant velocity of 10km/h and their energy absorbing capabilities were compared to demonstrate the structural benefit of filling materials in the tubes. Additionally, the compressive response of the multi-layered pyramidal truss structures without tube wall constraint were observed. The investigations included three tube wall thicknesses and three pyramidal truss structures with three relative densities by varying the inclination angle of the pyramidal truss strut. Those were made of Al6063T5 and 304 stainless steel (SS304) for tube wall and pyramidal truss structure, respectively. The results indicate that the energy absorption capability of the tube with the filling exceeds the simple sum of that of tube and that of the filler, and this is due to the interaction effect between outer tubes and pyramidal truss struts near the tube wall. Furthermore, the inclination angle of pyramidal truss struts influences energy absorption. Thus, the pyramidal truss structures can be potentially applied as a filler material for energy absorbing structures.Keywords multi-layered truss structures, crash box, filler material, Finite Element Analysis, energy absorption.Role of multi-layer pyramidal truss cores as an inner material of energy absorbing structures Sangwoo Kim et al.

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Axial crushing of metal foam-filled square columns: Foam density distribution and impactor inclination effects

Cited by 16 publications

References 14 publications

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

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

Crashworthiness design of foam-filled bitubal structures with uncertainty

Role of multi-layer pyramidal truss cores as an inner material of energy absorbing structures

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