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Bionic Design of the Bumper Beam Inspired by the Bending and Energy Absorption Characteristics of Bamboo.

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Title: Bionic Design of the Bumper Beam Inspired by the Bending and Energy Absorption Characteristics of Bamboo.
Authors: Zou, Meng1, Song, Jiafeng1, Xu, Shucai2, Liu, Shengfu1, Chang, Zhiyong1
Source: Applied Bionics & Biomechanics. 12/2/2018, p1-12. 12p.
Subjects: Flexure, Bamboo, Deformations (Mechanics), Fracture mechanics, Shock absorbers
Abstract: This study conducted quasistatic three-point bending tests to investigate the effect of bamboo node on the energy absorption, bending, and deformation characteristics of bamboo. Results showed that the node had a reinforcing effect on the energy absorption and bending strength of the bamboo culm subjected to bending load. The experimental results demonstrated that nodal samples (NS) significantly outperform internodal samples without node (INS). Under the three-point bending load, the main failure mode of bamboo is the fracture failure. The node also showed split and fracture prevention function obviously. Based on that, a series of bionic bumper beams were designed inspired by the bamboo node. The FEM results indicated that the performance of bionic bumpers was better than that of a normal bumper with regard to bending strength, energy absorption, and being lightweight. In particular, the bionic bumper beam has the best performance with regard to bending, energy absorption, and being lightweight compared with the normal bumper under pole impact. The characteristic of the bionic bumper beam is higher than that of the normal bumper beam by 12.3% for bending strength, 36.9% for EA, and 31.4% for SEA; moreover, there was a mass reduction of 4.9%, which still needs further optimization. [ABSTRACT FROM AUTHOR]
Copyright of Applied Bionics & Biomechanics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Bionic Design of the Bumper Beam Inspired by the Bending and Energy Absorption Characteristics of Bamboo.
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  Data: <searchLink fieldCode="DE" term="%22Flexure%22">Flexure</searchLink><br /><searchLink fieldCode="DE" term="%22Bamboo%22">Bamboo</searchLink><br /><searchLink fieldCode="DE" term="%22Deformations+%28Mechanics%29%22">Deformations (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Fracture+mechanics%22">Fracture mechanics</searchLink><br /><searchLink fieldCode="DE" term="%22Shock+absorbers%22">Shock absorbers</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: This study conducted quasistatic three-point bending tests to investigate the effect of bamboo node on the energy absorption, bending, and deformation characteristics of bamboo. Results showed that the node had a reinforcing effect on the energy absorption and bending strength of the bamboo culm subjected to bending load. The experimental results demonstrated that nodal samples (NS) significantly outperform internodal samples without node (INS). Under the three-point bending load, the main failure mode of bamboo is the fracture failure. The node also showed split and fracture prevention function obviously. Based on that, a series of bionic bumper beams were designed inspired by the bamboo node. The FEM results indicated that the performance of bionic bumpers was better than that of a normal bumper with regard to bending strength, energy absorption, and being lightweight. In particular, the bionic bumper beam has the best performance with regard to bending, energy absorption, and being lightweight compared with the normal bumper under pole impact. The characteristic of the bionic bumper beam is higher than that of the normal bumper beam by 12.3% for bending strength, 36.9% for EA, and 31.4% for SEA; moreover, there was a mass reduction of 4.9%, which still needs further optimization. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Applied Bionics & Biomechanics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1155/2018/8062321
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      – Code: eng
        Text: English
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        PageCount: 12
        StartPage: 1
    Subjects:
      – SubjectFull: Flexure
        Type: general
      – SubjectFull: Bamboo
        Type: general
      – SubjectFull: Deformations (Mechanics)
        Type: general
      – SubjectFull: Fracture mechanics
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      – SubjectFull: Shock absorbers
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      – TitleFull: Bionic Design of the Bumper Beam Inspired by the Bending and Energy Absorption Characteristics of Bamboo.
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            NameFull: Song, Jiafeng
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            NameFull: Xu, Shucai
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            NameFull: Liu, Shengfu
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            NameFull: Chang, Zhiyong
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            – D: 02
              M: 12
              Text: 12/2/2018
              Type: published
              Y: 2018
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