Thin-walled structural configurations for enhanced crashworthiness

Reddy, T.J.; Rao, Y. V. D.; Narayanamurthy, V.

doi:10.1080/13588265.2017.1306824

Cited by 24 publications

(21 citation statements)

References 16 publications

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“…It is also suggested that the energy absorption ought to take place on the longest path possible. Further details on the energy efficiency indexes can be found among others in the articles [4,10,14].…”

Section: Crushworthiness Idicatorsmentioning

confidence: 99%

Numerical Crush Analysis of Thin-Walled Aluminium Columns with Square Cross-Section and a Partial Foam Filling

Ferdynus¹,

Rogala²

2019

Adv. Sci. Technol. Res. J.

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The article presents the results of numerical crush simulations of thin-walled structures with a square cross-section and partial filling with foamed material. The influence of the length of the filling on the values of the energy efficiency index was analysed. Four types of foamed material were subjected to numerical analysis. The research was conducted using FEM in Abaqus 6.14 program. The obtained results were presented in the following forms: load-shortening characteristics, tables and diagrams. The best energy absorbing properties are shown by models filled with aluminium and polyethylene terephthalate foam.

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Section: Crushworthiness Idicatorsmentioning

confidence: 99%

Numerical Crush Analysis of Thin-Walled Aluminium Columns with Square Cross-Section and a Partial Foam Filling

Ferdynus¹,

Rogala²

2019

Adv. Sci. Technol. Res. J.

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“…Due to selection of the best obtained results, many of the design variations in each study will not be presented. Please note that all these designs underwent a crush displacement of a typical crush-rail as discussed by Reddy et al 35…”

Section: Advanced Crashworthiness Structuresmentioning

confidence: 99%

“…Much of the research that had been conducted focused toward the crash rails of vehicles in use today, typically allowing a crush length of approximately 240 mm. 35 This Figure 1. Road based passenger classification for heavy quadricycles.…”

Section: Introductionmentioning

confidence: 95%

“…Much of the research that had been conducted focused toward the crash rails of vehicles in use today, typically allowing a crush length of approximately 240 mm. 35 This length of crush is not feasible with the designs of L7e category vehicles and autonomous pods due to their foreseen dimensioning. 19 To provide a suitable review within the limitations of component level crash structures, the load-cases considered within the analysis will include oblique impacts and multiple velocity impacts.…”

Section: Introductionmentioning

confidence: 99%

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Crashworthy structures for future vehicle architecture of autonomous pods and heavy quadricycles on public roads: A review

Harrison

Christensen

Bastien

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part D:

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With the development and deployment of lightweight vehicles to the market, inclusive of autonomous pods, a review of advanced crashworthy structures and the design methodology has been conducted as it is thought that super-lightweight vehicles may pose significant risk to the occupants if they are involved in a crash. It is suggested that tests should include oblique and multiple velocity impacts to cater for the effects of assisted driving systems of future vehicles. A review of current crash structures and design methodologies revealed that the most recent research do not cater to multiple crash scenarios, nor a shorter crush allowance, therefore resulting in poor crashworthiness performance. In addition, the arbitrary seat positioning shown in autonomous pods’ concepts vastly increases the risk to occupants. Greater enhancements to passive crashworthiness are imperative. To this end, functionally graded vehicle structures should be designed as it has been found that these can provide optimized solutions. Research into nonlinear optimization methods for computationally expensive problems will become central to this.

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“…The greatest challenge in constructing EAS is to design them in such a way as to reduce the intensity of impact-induced deceleration, while maximizing the energy absorbed. An attempt to solve this problem can be found, among others, in Reddy’s work [ 12 ], where the authors focused on this problem. The numerical research and proposals of interesting ideas were approved on the basis of experimental data.…”

Section: Introductionmentioning

confidence: 99%

Energy Absorption Capability of Thin-Walled Prismatic Aluminum Tubes with Spherical Indentations

2020

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The paper presents the results of numerical tests of impact and energy absorption capacity of thin-walled columns, subjected to axial impact loading, made of aluminum alloy, and having a square cross-section and spherical indentations on their lateral surfaces. The numerical models were validated using an experiment that was conducted on the Instron CEAST 9350 High Energy System drop hammer. Material properties of the applied aluminum alloy were determined on the basis of a static tension test. The crushing behavior of the columns and some crashworthiness indicators were investigated. On the basis of the results of the conducted analyses, conclusions were drawn about the most beneficial design/constructional variants in terms of achieved crashworthiness parameters.

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Thin-walled structural configurations for enhanced crashworthiness

Cited by 24 publications

References 16 publications

Numerical Crush Analysis of Thin-Walled Aluminium Columns with Square Cross-Section and a Partial Foam Filling

Numerical Crush Analysis of Thin-Walled Aluminium Columns with Square Cross-Section and a Partial Foam Filling

Crashworthy structures for future vehicle architecture of autonomous pods and heavy quadricycles on public roads: A review

Energy Absorption Capability of Thin-Walled Prismatic Aluminum Tubes with Spherical Indentations

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