Energy absorption analysis of a novel foam-filled corrugated composite tube under axial and oblique loadings

Mahbod, Mahshid; Asgari, Masoud

doi:10.1016/j.tws.2018.03.023

Cited by 82 publications

(30 citation statements)

References 41 publications

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“…Other than that, this design has altered the failure mode and increased the bending resistance of the metallic beams. Similar results obtained by Mahbod and Asgari [28] shown that foam-filled corrugated tubes has improved the energy absorption capacity in axial and oblique loading condition. The study also proven that by increasing the foam density, the SEA of the tubes has increased simultaneously while crushing force efficiency decreased.…”

Section: Optimization Of Foam-filled Square Thin-walled Aluminium Strsupporting

confidence: 87%

“…Generally, it is a bit challenging to formulate the mathematical relationship between SEA and IPCF by taking into account the material properties, nonlinearities geometry, and contact-impact nonlinearities [32]. A few techniques are suggested for example the RSM to considered those effects of suitable parameters in designing energy absorbers [28]. The design parameters are stated mathematically as below.…”

Section: Resultsmentioning

confidence: 99%

“…Each output response was analyzed individually for the for both input factors. emerges as part of a general approach to present outcomes of such analysis, mean square which is a measurement of the quality for an approximation, F-value is obtained with by dividing two mean squares and decides the ratio of explained variance to unexplained variance, P-value which is the level of significance limits within a statistic hypothesis test to present the probability of the of a studied case [28]. For the model to be significant, the P-value shall not more 0.05.…”

Section: B Analysis Of Variance (Anova)mentioning

confidence: 99%

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Optimization of Foam-Filled Square Thin-Walled Aluminium Structures

Rahim*,

Salleh

2019

IJRTE

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Crash box are the structural part designed to absorb energy during crash and minimize the injury to passengers. Various design of energy absorbers has been introduced to unleash design with the best crashworthiness behavior. Foam-filled structures are one of the promising designs. In this study, foam-filled structure was investigated to increase the energy absorption capability and reduce the initial peak force simultaneously. Since most foam-filled structures tend to absorb more energy with high peak force, optimization of the energy absorbers is significant in obtaining the optimum design. Response surface methodology (RSM) has been dominant technique in crashworthiness optimization mainly because of it provides efficient and accurate solution. This paper focused on the optimization foam-filled columns with respect to thickness of the tube and length of foam to enhance energy absorptions and reduce initial peak force. The optimization results suggested by Design Expert software for impact test is 515.9 J for EA and 134.94kN for IPF value with the column thickness of 2.0mm and foam length of 185mm. For quasi-static test, the optimum solution value for EA and IPF are 864.5J and 88.33kN respectively with column thickness of 1.87mm and foam length of 200mm.

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Section: Optimization Of Foam-filled Square Thin-walled Aluminium Strsupporting

confidence: 87%

Section: Resultsmentioning

confidence: 99%

Section: B Analysis Of Variance (Anova)mentioning

confidence: 99%

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Optimization of Foam-Filled Square Thin-Walled Aluminium Structures

Rahim*,

Salleh

2019

IJRTE

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“…Specific energy absorption has an increase about 20-22%. These increase in load efficiency and specific energy absorption due to foam-filling structures were reported by some researchers [39,40,46,56,57]. Furthermore, the value of performance function for foam filled crash box is much higher than empty one that shows better performance of foam filled than empty ones.…”

Section: Resultssupporting

confidence: 60%

Effects of Geometry, Triggering and Foam-Filling on Crashworthiness Behaviour of a Cylindrical Composite Crash Box

Jahani¹,

Beheshti²,

Heidari-Rarani³

2019

IJAME

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Crash boxes play an important role in different industries as energy absorbers to reduce damage of accidents. An ideal crash box has lower maximum force and higher energy absorption. The aim of this study is to investigate the effect of various parameters such as geometry (diameter and thickness), triggering and filling with polymeric foam on axial crash behaviour of a composite cylindrical cash box. To this end, a composite crash box is modelled in a commercial finite element software, Abaqus, utilising the Hashin failure criterion to predict damage initiation. Linking damage initiation with material degradation rules provides the capability for damage evolution prediction on the basis of fracture energy of different failure modes. A new parameter (β) is defined to study the performance of a crash box with different geometries, triggers and foam-filling. The results show that three different triggering geometries (chamfer, fillet, and tulip) decrease the maximum load about 7-33%, and improved energy absorption about 40-86% compared to the crash box without trigger. Filling a triggered crash box with polymeric foam also improves energy absorption about 20%. Applying both triggering and foam-filling simultaneously on a crash box has a complementary role to receive a better performance.

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“…To enhance the energy absorption capability and reduce the initial peak crushing force of thinwalled tubes, the attention of many researchers has also been drawn to corrugated tubes (Mahbod & Asgari, 2018), functionally graded thickness (FGT) tubes (Sun et al, 2017), foamfilled tubes (Xiong et al, 2018;Googarchin et al, 2019) and metal/composite hybrid tubes (Zhang et al, 2019). For instance, Mahbod and Asgari (2018) conducted a theoretical study to investigate the behavior of corrugated composite tubes under axial and oblique crushing.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Prediction of Dynamic Axial Crushing on a Square Tube with Eight Holes Used as a Crush Initiator

Malawat

Sumarsono²,

Istiyanto³

et al. 2019

IJTech

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Thin-walled square steel tubes are part of automobile structures, used as impact energy absorbers on crush boxes. Under axial crushing, such tubes sometimes produces unpredictable folding forms. There are three modes of dynamic axial crushing folding forms: the symmetric collapse mode; the asymmetric mixed collapse mode A; and the asymmetric mixed collapse mode B. The objective of this paper is to develop a theoretical prediction for the three modes on a thin-walled square steel tube with eight holes used as crush initiator. The basic folding mechanism is used to predict the dynamic axial crushing analysis on the tube. These theoretical analyses can also can be implemented in different crush initiator positions. Two types of cross section (c/h) were used in this study: specimen A (c/h = 60.42) and specimen B (c/h = 45.69). Thirty-six experimental drop test studies were conducted on the thin wall square tube. In addition, the results of a previous drop test were compared to the results of the theoretical prediction. The results show that the theoretical analysis has good agreement with the experimental drop test study. This study proposes nine formulas to predict average force, peak force and energy absorption of the dynamic axial crushing on the thin-walled square steel tube with eight holes of crush initiator. The limitation of these formulas, however, is that they are unable to show the relationship between force and time in a graph.

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Energy absorption analysis of a novel foam-filled corrugated composite tube under axial and oblique loadings

Cited by 82 publications

References 41 publications

Optimization of Foam-Filled Square Thin-Walled Aluminium Structures

Optimization of Foam-Filled Square Thin-Walled Aluminium Structures

Effects of Geometry, Triggering and Foam-Filling on Crashworthiness Behaviour of a Cylindrical Composite Crash Box

Theoretical Prediction of Dynamic Axial Crushing on a Square Tube with Eight Holes Used as a Crush Initiator

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