Quasi-static axial crush response and energy absorption of layered composite structure formed from novel crochet-sintered mesh tube and thin-walled tube

Wu, Fei; Xiao, Xiaoting; Yang, Jie; Yu, Yang

doi:10.1016/j.compstruct.2018.03.054

Cited by 19 publications

(14 citation statements)

References 57 publications

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“…2 show the preparation processes for the PCSM. The explanations on the preparation processes are as follows [13,14]:…”

Section: Experimental Procedures 21 Specimen Preparationmentioning

confidence: 99%

“…Circular and square tubes are traditional energy-absorption components [5][6][7][8]. Then, the crashworthiness of polygonal tubes such as odd-sided tubes (triangular and pentagonal tubes [9,10]) and even-sided tubes (hexagonal and octagonal tubes [11], 12-sided and 16-sided star tubes [12]) were investigated [13,14]. In addition to these straight tubes, tapered and graded tubes [15,16] have also attracted research attention.…”

Section: Introductionmentioning

confidence: 99%

“…However, these imperfections can reduce the stiffness and load-carrying capacity of tubular structures, and especially weaken radial stiffness and lateral or oblique impact resistance significantly. In recent decades, the crashworthiness of composite structures of metal thin-walled tubes have been extensively investigated, such as multi-cell thin-walled composite tubes [22][23][24][25], filled composite structures [26][27][28][29] and layered composite structures [13,30].…”

Section: Introductionmentioning

confidence: 99%

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Static and dynamic crushing of novel porous crochet-sintered metal and its filled composite tube

Liu

Xiao

et al. 2019

Composite Structures

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A novel porous crochet-sintered metal (PCSM) is fabricated by rolling a crocheted porous cloth and subsequent vacuum sintering using a continual single super-fine soft 304 rope twisted by 49 fibers as raw material. This work investigates the quasi-static and dynamic axial crushing response of PCSMs and their filled composite tubes. The pore structures of PCSMs are formed by inter-crocheted and multiple inter-locked rope skeletons and metallurgical bonds. The PCSMs have almost no initial impact effects with a high crushing force efficiency. Filling the PCSMs changes the deformation model of 6063 tube, improves the static crashworthiness parameters of 6063 tube by 8-25% with almost no increasing initial impact effect, and doesn't always play a positive role in dynamic absorption. Porosity has obvious influence on the quasistatic and dynamic behavior and crashworthiness of PCSMs and their filled composite tube, and the effect of porosity on dynamic crashworthiness of composite tube is greater than that on quasi-static crashworthiness of composite tube. The PCSMs and their composite tubes show great potential for application in energy absorbers. The method of filling PCSM into bare tube is possible to improve the energy absorption ability of thin-walled tube with almost no increase in the initial peak force.

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“…2 show the preparation processes for the PCSM. The explanations on the preparation processes are as follows [13,14]:…”

Section: Experimental Procedures 21 Specimen Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Static and dynamic crushing of novel porous crochet-sintered metal and its filled composite tube

Liu

Xiao

et al. 2019

Composite Structures

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“…They achieved that the specific energy absorption is higher compared to a pure aluminum structure. Wu et al [17] investigated quasi-static axial crush response and energy absorption of layered composite structure formed from novel crochet-sintered mesh tube and thin-walled tube. They concluded that the layered composite tubes showed great potential for application as energy absorbers.…”

Section: Introductionmentioning

confidence: 99%

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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“…28,37–39 Some other researches can also be found in the literature that have investigated the crashworthiness of different composite and hybrid structures and the important parameters which affect their performance. 31,40–45…”

Section: Introductionmentioning

confidence: 99%

Efficient crushable corrugated conical tubes for energy absorption considering axial and oblique loading

Ahmadi

Asgari

2018

Proceedings of the Institution of Mechanical Engineers, Part C:

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Thin-walled structures are of much interest as energy absorption devices for their great crashworthiness and also low weight. Conical tubes are favorable structures because unlike most other geometries, they are also useful in oblique impacts. This paper investigated the effect of corrugations on energy absorption characteristics of conical tubes under quasi-static axial and oblique loadings. To do so, conical tubes with different corrugation geometries were analyzed using the finite element explicit code and the effects of corrugations on initial peak crushing force and specific energy absorption were studied. The finite element model was validated by experimental quasi-static compression tests on simple and corrugated aluminum cylinders. An efficient analytical solution for EA during axial loading was also derived and compared with the FEM solution. The crushing stableness was analyzed using the undulation of the load-carrying capacity parameter and it was shown that corrugations made collapsing mode, more predictable and controllable. The findings have shown that corrugated conical tubes have much better energy absorption characteristics compared with their non-corrugated counterparts. It was also discovered that during oblique loadings, introducing corrugations can significantly increase the specific energy absorption compared with simple cones.

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Quasi-static axial crush response and energy absorption of layered composite structure formed from novel crochet-sintered mesh tube and thin-walled tube

Cited by 19 publications

References 57 publications

Static and dynamic crushing of novel porous crochet-sintered metal and its filled composite tube

Static and dynamic crushing of novel porous crochet-sintered metal and its filled composite tube

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

Efficient crushable corrugated conical tubes for energy absorption considering axial and oblique loading

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