Development of a bendable pyramidal kagome structure and its structural characteristics

June Sun Hwang; Tae Gyun Choi; Dongyoung Lee; Min Young Lyu; Dai Gil Lee; Dong Yol Yang

doi:10.1016/j.compstruct.2016.01.079

Development of a bendable pyramidal kagome structure and its structural characteristics

June Sun Hwang, Tae Gyun Choi, Dongyoung Lee, Min Young Lyu, Dai Gil Lee, Dong Yol Yang

Dept. of Mechanical System and Design Engineering

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

16 Scopus citations

Abstract

A sandwich construction is an effective lightweight structure. Conventionally, sandwich structures have been fabricated as plane panels with limitation of application to curved components. In this work, a bendable structure that can be applied to the curved surface was developed based on the pyramidal kagome (PK) structure. The bending zone adaptable to the curved surface was designed between the neighboring PK structures. The PK sandwich structure was strengthened by developing the cross-sectional design of the strut. The mechanical characteristics were investigated by three-point bending test and compression test. The semi-circular cross-section (SCC)-based PK sandwich structure showed improved bending stiffness and maximum bending load over those of the conventional flat rectangular cross-section (FRC)-based PK sandwich structure. The curved PK sandwich structure was applied to the curved component.

Original language	English
Pages (from-to)	87-95
Number of pages	9
Journal	Composite Structures
Volume	142
DOIs	https://doi.org/10.1016/j.compstruct.2016.01.079
State	Published - 10 May 2016

Keywords

Bendable structure
Bending stiffness
Kagome structure
Pyramidal kagome
Semi-circular

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10.1016/j.compstruct.2016.01.079

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title = "Development of a bendable pyramidal kagome structure and its structural characteristics",

abstract = "A sandwich construction is an effective lightweight structure. Conventionally, sandwich structures have been fabricated as plane panels with limitation of application to curved components. In this work, a bendable structure that can be applied to the curved surface was developed based on the pyramidal kagome (PK) structure. The bending zone adaptable to the curved surface was designed between the neighboring PK structures. The PK sandwich structure was strengthened by developing the cross-sectional design of the strut. The mechanical characteristics were investigated by three-point bending test and compression test. The semi-circular cross-section (SCC)-based PK sandwich structure showed improved bending stiffness and maximum bending load over those of the conventional flat rectangular cross-section (FRC)-based PK sandwich structure. The curved PK sandwich structure was applied to the curved component.",

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author = "Hwang, \{June Sun\} and Choi, \{Tae Gyun\} and Dongyoung Lee and Lyu, \{Min Young\} and Lee, \{Dai Gil\} and Yang, \{Dong Yol\}",

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AU - Hwang, June Sun

AU - Choi, Tae Gyun

AU - Lee, Dongyoung

AU - Lyu, Min Young

AU - Lee, Dai Gil

AU - Yang, Dong Yol

PY - 2016/5/10

Y1 - 2016/5/10

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AB - A sandwich construction is an effective lightweight structure. Conventionally, sandwich structures have been fabricated as plane panels with limitation of application to curved components. In this work, a bendable structure that can be applied to the curved surface was developed based on the pyramidal kagome (PK) structure. The bending zone adaptable to the curved surface was designed between the neighboring PK structures. The PK sandwich structure was strengthened by developing the cross-sectional design of the strut. The mechanical characteristics were investigated by three-point bending test and compression test. The semi-circular cross-section (SCC)-based PK sandwich structure showed improved bending stiffness and maximum bending load over those of the conventional flat rectangular cross-section (FRC)-based PK sandwich structure. The curved PK sandwich structure was applied to the curved component.

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KW - Bending stiffness

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KW - Semi-circular

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Development of a bendable pyramidal kagome structure and its structural characteristics

Abstract

Keywords

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