Energy absorption of thin-walled empty and foam-filled tubes

Zhai, Fan

doi:10.32657/10356/51129

Cited by 2 publications

(1 citation statement)

References 163 publications

(232 reference statements)

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“…It is known that thin-walled structures can be either empty or filled with ultra-light foam like materials such as polyurethane foam or aluminium foam [5]. In the fabrication process of the structure itself, homogeneous materials are often used but an attractive solution for the automotive companies is materialized by the use of tailor welded blanks (TWB).…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Collapse Behaviour Regarding TWB Crash-Boxes in Conjunction with the Construction Technique

Ciubotariu

2014

AMM

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The crash-boxes are thin-walled structural components with rectangular cross-section which are utilized in the construction of the resistance body structures in the auto industry. This components can be manufactured from various materials including homogenous steel sheet metals, tailor welded blanks (TWB) or even composite materials. The benefits of using TWB were shown in numerous studies before and they are not the main purpose here.This research focuses on the collapse behaviour of TWB thin-walled structures with rectangular cross-section subject of impact loadings. The main objective is to design a crash-box which allows the absorption and dissipation of great kinetic energy constituting better resistance structures for car bodies.After analysing the resulted data, a few aspects regarding the TWB crash-boxes were revealed and some conclusions could be suggested: the weld line generates a barrier like zone which delays in some manner the propagation of the progressive buckling levelling the mean crash load; no flange crash-boxes presented best results regarding the mean crash load even if the data were very close to the other crash-box types. Furthermore, the peak crash load was at maximum level comparing with the other crash-box types. This collapsing behaviour of the no flange crash-boxes could be assigned to the fact that the bonded sides of the structure work like double walls into the same cress-section and is not really affecting the asymmetric crash mode of the structure.

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Section: Introductionmentioning

confidence: 99%

Analysis of the Collapse Behaviour Regarding TWB Crash-Boxes in Conjunction with the Construction Technique

Ciubotariu

2014

AMM

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Fabrication of Fixture for Concentric Foam Filling of Tubes

Sachin¹,

Shreyas²,

Sreedhar³

et al. 2016

IJRET

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A fixture is a work-holding or support device used in the manufacturing industry. Fixtures are used to securely locate (position in a specific location or orientation) and support the work, ensuring that all parts produced using the fixture will maintain conformity and interchangeability. A fixture's primary purpose is to create a secure mounting point for a workpiece, allowing for support during operation and increased accuracy, precision, reliability, and interchangeability in the finished parts. A fixture was designed in order to hold the tubes in position and facilitate foam filling in between the tubes. The proposed fixture ensured that concentricity was maintained between the tubes and also designed in such a way that it could be configured for different orientations.

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Energy absorption of thin-walled empty and foam-filled tubes

Cited by 2 publications

References 163 publications

Analysis of the Collapse Behaviour Regarding TWB Crash-Boxes in Conjunction with the Construction Technique

Analysis of the Collapse Behaviour Regarding TWB Crash-Boxes in Conjunction with the Construction Technique

Fabrication of Fixture for Concentric Foam Filling of Tubes

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