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

Research output: Contribution to journal › Article › peer-review

80 Scopus citations

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.

Original language	English
Article number	105697
Journal	Composites Part A: Applied Science and Manufacturing
Volume	129
DOIs	https://doi.org/10.1016/j.compositesa.2019.105697
State	Published - Feb 2020
Externally published	Yes

Keywords

Composite NS structure
Energy absorption
Repeatability
Shock isolation

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10.1016/j.compositesa.2019.105697

Cite this

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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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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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M3 - 文章

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JO - Composites Part A: Applied Science and Manufacturing

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ER -

A novel composite negative stiffness structure for recoverable trapping energy

Abstract

Keywords

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