Quasi-static axial crushing of hexagonal origami crash boxes as energy absorption devices

Ma, Jun; Dai, Huaping; Shi, Mengyan; Yuan, Lin; Chen, Yan; Zhang, You

doi:10.5194/ms-10-133-2019

Cited by 45 publications

(13 citation statements)

References 31 publications

(33 reference statements)

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“…A typical design approach to enhance a vehicle's crashworthiness is to install energy absorption devices that deform and absorb kinetic energy during a low-speed collision (Ma & You, 2014b). Both experimental and numerical results show that the pre-folded pattern develops a diamond-shaped mode, reducing initial peak force and a significant increase in energy absorption compared to the conventional hexagonal tube (Ma et al, 2019). The elevated overall force level, in turn, increases the total energy absorbed.…”

Section: Introductionmentioning

confidence: 95%

Investigation of Compressive Behavior of Pre-folded Thin-walled Column Fabricated by 3D Printing

Triawan

Rachmawati

Budiman

et al. 2021

Indonesian J. Sci. Technol

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This paper reveals the mechanical behavior of thin-walled columns with pre-folded patterns subjected to compressive loading. The column specimens (Polylactic Acid) are fabricated using Fused Deposition Modeling 3D printer and subjected to quasi-static compressive loading to investigate their mechanical behavior (by modifying the specimens' cross-section patterns and folding angles). The column specimens are simulated by finite element analysis to understand how the stress distribution and local deformation affecting the stiffness, strength, and overall deformation. The experiments showed that introducing the pre-folded pattern in a thin-walled column with different cross-sections can dramatically lower its structural stiffness (85%) and compressive strength (69%), but increase its deformability (115%), which is good agreement with numerical simulation. The variation of cross-section patterns and pre-folding angle could effectively modify the compressive mechanical behavior. Moreover, the results demonstrate how the FDM 3D Printing method can be used in fabricating a thin-walled column with irregular shapes and then to modify its deformability. This finding can be useful for designing any complex structures requiring specific stiffness and deformation such as suspension devices, prosthetic devices in biomechanics, and robotic structures.

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Section: Introductionmentioning

confidence: 95%

Investigation of Compressive Behavior of Pre-folded Thin-walled Column Fabricated by 3D Printing

Triawan

Rachmawati

Budiman

et al. 2021

Indonesian J. Sci. Technol

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“…The justification for a significant decrease in θ = 110 o was due to the reduction of the designed crosssection area of the Miura origami column. According to [27], the geometry of the column after passing the critical angle θ is expected to withstand more compressive load, but this may not happen since it sacrifices or reduces the designed cross-section area. As a result, it may lower the ability of the column to absorb the strain energy since the column may become slenderer (less stable) and having only a smaller crosssection area that is in contact during the compression testing.…”

Section: Specific Energy Absorptionmentioning

confidence: 99%

Quasi-static Compressive Properties and Behavior of Single-cell Miura Origami Column Fabricated by 3D Printed PLA Material

Triawan

Denatra

Djamari

2020

IJSTT

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The study of a thin-walled column structure has gained much attention due to its potential in many engineering applications, such as the crash box of a car. A thin-walled square column usually exhibits high initial peak force, which may become very dangerous to the driver or passenger. To address this issue, introducing some shape patterns, e.g., origami folding pattern, to the column may become a solution. The present work investigates the compressive properties and behavior of a square box column structure which adopts the Miura origami folding pattern. Several test pieces of single-cell Miura origami column with varying folding angle and layer height are fabricated by a 3D printer. The filament is made of Polylactic Acid (PLA), which is a brittle material. Then, compression tests are carried out to understand its compressive mechanical properties and behavior. The results show that introducing a Miura origami pattern to form a thin-walled square column can dramatically lower down the initial peak stress by 96.82% and, at the same time, increase its ductility, which eventually improves the energy absorption capacity by 61.68% despite the brittle fracture behavior.

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“…39 Mesh convergence study was conducted, and a global element size of 2 mm was found suitable and thus adopted in the analysis. In recent publications, 40,41 we presented a similar numerical framework, which has been successfully used and validated in a separate crash box study.…”

Section: Finite Element Modelingmentioning

confidence: 99%

Energy absorption capability of origami automobile bumper system

Yuan

Zhang

2019

Proceedings of the Institution of Mechanical Engineers, Part C:

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The crashworthiness of an automobile bumper plays a vital role in overall vehicle safety. Energy absorption efficiency, as well as predictable and stable performance, are the most demanding features in the design of the bumper system. To this end, this paper presents a series of innovative bumper designs using built-in origami patterns. Also, we outline a numerical framework for evaluating the energy absorption performance of a bumper when subjected to an impact loading. Comparative analyses on full frontal and 40% offset frontal impact tests are conducted numerically for both low and high-speed scenarios. It is found that the designed failure modes are successfully triggered and followed during the collision process for the combined origami beam-origami crash box design. Most importantly, this optimal design could absorb 31.5% more energy than the conventional bumper.

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Quasi-static axial crushing of hexagonal origami crash boxes as energy absorption devices

Cited by 45 publications

References 31 publications

Investigation of Compressive Behavior of Pre-folded Thin-walled Column Fabricated by 3D Printing

Investigation of Compressive Behavior of Pre-folded Thin-walled Column Fabricated by 3D Printing

Quasi-static Compressive Properties and Behavior of Single-cell Miura Origami Column Fabricated by 3D Printed PLA Material

Energy absorption capability of origami automobile bumper system

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