A novel composite negative stiffness structure for recoverable trapping energy

Shuai Chen; Bing Wang; Shaowei Zhu; Xiaojun Tan; Jiqiang Hu; Xu Lian; Lianchao Wang; Linzhi Wu

doi:10.1016/j.compositesa.2019.105697

A novel composite negative stiffness structure for recoverable trapping energy

Shuai Chen, Bing Wang, Shaowei Zhu, Xiaojun Tan, Jiqiang Hu, Xu Lian, Lianchao Wang, Linzhi Wu

Harbin Institute of Technology

科研成果: 期刊稿件 › 文章 › 同行评审

80 引用（Scopus）

摘要

Negative stiffness (NS) structures, as hopeful metamaterials, are potential in the energy absorption (EA) field. However, low specific energy absorption (SEA) limits its engineering application. In this paper, a novel reusable composite NS structure composed of Two-material systems is proposed and investigated. It is potential to be used in shock isolation, vibration control and deployable structure. Specimen was fabricated by additive manufacturing technology. Mechanical properties of this structure are studied with a combination of compression tests and simulations. Repeatability of the structure is then verified through cyclic compression. Besides, plate-impact tests were also carried out to study the cushion performance of this structure. The results of the impact tests reveal that the composite NS structure has good cushion performance by adjusting the threshold of acceleration response amplitude and completely reusable when the snap-through behavior occurs.

源语言	英语
文章编号	105697
期刊	Composites Part A: Applied Science and Manufacturing
卷	129
DOI	https://doi.org/10.1016/j.compositesa.2019.105697
出版状态	已出版 - 2月 2020
已对外发布	是

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title = "A novel composite negative stiffness structure for recoverable trapping energy",

abstract = "Negative stiffness (NS) structures, as hopeful metamaterials, are potential in the energy absorption (EA) field. However, low specific energy absorption (SEA) limits its engineering application. In this paper, a novel reusable composite NS structure composed of Two-material systems is proposed and investigated. It is potential to be used in shock isolation, vibration control and deployable structure. Specimen was fabricated by additive manufacturing technology. Mechanical properties of this structure are studied with a combination of compression tests and simulations. Repeatability of the structure is then verified through cyclic compression. Besides, plate-impact tests were also carried out to study the cushion performance of this structure. The results of the impact tests reveal that the composite NS structure has good cushion performance by adjusting the threshold of acceleration response amplitude and completely reusable when the snap-through behavior occurs.",

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author = "Shuai Chen and Bing Wang and Shaowei Zhu and Xiaojun Tan and Jiqiang Hu and Xu Lian and Lianchao Wang and Linzhi Wu",

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T1 - A novel composite negative stiffness structure for recoverable trapping energy

AU - Chen, Shuai

AU - Wang, Bing

AU - Zhu, Shaowei

AU - Tan, Xiaojun

AU - Hu, Jiqiang

AU - Lian, Xu

AU - Wang, Lianchao

AU - Wu, Linzhi

PY - 2020/2

Y1 - 2020/2

N2 - Negative stiffness (NS) structures, as hopeful metamaterials, are potential in the energy absorption (EA) field. However, low specific energy absorption (SEA) limits its engineering application. In this paper, a novel reusable composite NS structure composed of Two-material systems is proposed and investigated. It is potential to be used in shock isolation, vibration control and deployable structure. Specimen was fabricated by additive manufacturing technology. Mechanical properties of this structure are studied with a combination of compression tests and simulations. Repeatability of the structure is then verified through cyclic compression. Besides, plate-impact tests were also carried out to study the cushion performance of this structure. The results of the impact tests reveal that the composite NS structure has good cushion performance by adjusting the threshold of acceleration response amplitude and completely reusable when the snap-through behavior occurs.

AB - Negative stiffness (NS) structures, as hopeful metamaterials, are potential in the energy absorption (EA) field. However, low specific energy absorption (SEA) limits its engineering application. In this paper, a novel reusable composite NS structure composed of Two-material systems is proposed and investigated. It is potential to be used in shock isolation, vibration control and deployable structure. Specimen was fabricated by additive manufacturing technology. Mechanical properties of this structure are studied with a combination of compression tests and simulations. Repeatability of the structure is then verified through cyclic compression. Besides, plate-impact tests were also carried out to study the cushion performance of this structure. The results of the impact tests reveal that the composite NS structure has good cushion performance by adjusting the threshold of acceleration response amplitude and completely reusable when the snap-through behavior occurs.

KW - Composite NS structure

KW - Energy absorption

KW - Repeatability

KW - Shock isolation

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A novel composite negative stiffness structure for recoverable trapping energy

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