A Cylindrical Crash Absorber with Discontinuous Protrusions and Its Manufacture Using a Successive Partial Rubber-Bulging Method

In an effort to improve impact energy-absorption characteristics, this study introduces a cylindrical crash absorber (CAP) with discontinuous protrusions and a continuous local-expansion plastic-forming method for its manufacture. The mechanical properties of the cylindrical energy-absorption struct...

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Autores principales:	Di Liang, Wenhao Xu, Jieliang Feng, Wei Zhao, Naoki Kawada, Xilu Zhao
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	cylindrical crash absorber successive partial rubber-bulging method tube plastic molding rubber elasticity crash energy absorption tube crush deformation Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/e24ec9895cd54ab89f413c16018e775f
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spelling	oai:doaj.org-article:e24ec9895cd54ab89f413c16018e775f2021-11-25T16:39:56ZA Cylindrical Crash Absorber with Discontinuous Protrusions and Its Manufacture Using a Successive Partial Rubber-Bulging Method10.3390/app1122108922076-3417https://doaj.org/article/e24ec9895cd54ab89f413c16018e775f2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10892https://doaj.org/toc/2076-3417In an effort to improve impact energy-absorption characteristics, this study introduces a cylindrical crash absorber (CAP) with discontinuous protrusions and a continuous local-expansion plastic-forming method for its manufacture. The mechanical properties of the cylindrical energy-absorption structure were modified by installing multiple particle protrusions on the cylinder sidewall to reduce the initial pickup load and improve the impact energy-absorption performance. To facilitate manufacture of the proposed CAP, a cylindrical rubber piece was placed into a cylindrical tube and pressure was applied to the rubber from both ends of the tube. The CAP was formed by the bulging force of the rubber. The formability was verified by developing a successive local bulge-forming experimental device and comparing the manufactured CAP with the results of numerical simulations. Testing of quasi-static collapse conducted on a CAP manufactured using this device verified the effectiveness of the proposed CAP design and its plastic-forming method. It was determined that this design reduced the initial peak load, and the crash absorber could maintain stability over a long, continuous distance during crushing deformation.Di LiangWenhao XuJieliang FengWei ZhaoNaoki KawadaXilu ZhaoMDPI AGarticlecylindrical crash absorbersuccessive partial rubber-bulging methodtube plastic moldingrubber elasticitycrash energy absorptiontube crush deformationTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10892, p 10892 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cylindrical crash absorber successive partial rubber-bulging method tube plastic molding rubber elasticity crash energy absorption tube crush deformation Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	cylindrical crash absorber successive partial rubber-bulging method tube plastic molding rubber elasticity crash energy absorption tube crush deformation Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Di Liang Wenhao Xu Jieliang Feng Wei Zhao Naoki Kawada Xilu Zhao A Cylindrical Crash Absorber with Discontinuous Protrusions and Its Manufacture Using a Successive Partial Rubber-Bulging Method
description	In an effort to improve impact energy-absorption characteristics, this study introduces a cylindrical crash absorber (CAP) with discontinuous protrusions and a continuous local-expansion plastic-forming method for its manufacture. The mechanical properties of the cylindrical energy-absorption structure were modified by installing multiple particle protrusions on the cylinder sidewall to reduce the initial pickup load and improve the impact energy-absorption performance. To facilitate manufacture of the proposed CAP, a cylindrical rubber piece was placed into a cylindrical tube and pressure was applied to the rubber from both ends of the tube. The CAP was formed by the bulging force of the rubber. The formability was verified by developing a successive local bulge-forming experimental device and comparing the manufactured CAP with the results of numerical simulations. Testing of quasi-static collapse conducted on a CAP manufactured using this device verified the effectiveness of the proposed CAP design and its plastic-forming method. It was determined that this design reduced the initial peak load, and the crash absorber could maintain stability over a long, continuous distance during crushing deformation.
format	article
author	Di Liang Wenhao Xu Jieliang Feng Wei Zhao Naoki Kawada Xilu Zhao
author_facet	Di Liang Wenhao Xu Jieliang Feng Wei Zhao Naoki Kawada Xilu Zhao
author_sort	Di Liang
title	A Cylindrical Crash Absorber with Discontinuous Protrusions and Its Manufacture Using a Successive Partial Rubber-Bulging Method
title_short	A Cylindrical Crash Absorber with Discontinuous Protrusions and Its Manufacture Using a Successive Partial Rubber-Bulging Method
title_full	A Cylindrical Crash Absorber with Discontinuous Protrusions and Its Manufacture Using a Successive Partial Rubber-Bulging Method
title_fullStr	A Cylindrical Crash Absorber with Discontinuous Protrusions and Its Manufacture Using a Successive Partial Rubber-Bulging Method
title_full_unstemmed	A Cylindrical Crash Absorber with Discontinuous Protrusions and Its Manufacture Using a Successive Partial Rubber-Bulging Method
title_sort	cylindrical crash absorber with discontinuous protrusions and its manufacture using a successive partial rubber-bulging method
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e24ec9895cd54ab89f413c16018e775f
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A Cylindrical Crash Absorber with Discontinuous Protrusions and Its Manufacture Using a Successive Partial Rubber-Bulging Method

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