Optimum design of sandwich composite structures under various dynamic loads using the equivalent static load method

Yijae Choi; Wonmo Kang; Jaemin Moon; Chang Wan Kim

doi:10.1016/j.compstruct.2022.115991

Optimum design of sandwich composite structures under various dynamic loads using the equivalent static load method

Yijae Choi, Wonmo Kang, Jaemin Moon, Chang Wan Kim

Research output: Contribution to journal › Comment/debate › peer-review

Abstract

Sandwich composite structures are high-performance materials with greater specific strength and specific stiffness properties, than widely used conventional metals. In this study, sandwich composite structures under dynamic loads were optimized using the equivalent static load method (ESLM). First, a finite element analysis was performed on the sandwich composite structure, using the high-order sandwich panel theory (HSAPT), considering the core material to be compressible. Further, it was optimized by applying the ESLM to three different sandwich composite structures under different types of dynamic loads. The results of the proposed method and conventional dynamic response optimization method were compared. The ESLM was observed to attain a convergence at a rate 1/24 times faster than the conventional method.

Original language	English (US)
Article number	115991
Journal	Composite Structures
Volume	298
DOIs	https://doi.org/10.1016/j.compstruct.2022.115991
State	Published - Oct 15 2022
Externally published	Yes

Keywords

Dynamic load
Equivalent static load method (ESLM)
Nonlinear dynamic response optimization
Sandwich composite structures

ASJC Scopus subject areas

Ceramics and Composites
Civil and Structural Engineering

Access to Document

10.1016/j.compstruct.2022.115991

Cite this

@article{506cf36d6c6547108767e33d77adf497,

title = "Optimum design of sandwich composite structures under various dynamic loads using the equivalent static load method",

abstract = "Sandwich composite structures are high-performance materials with greater specific strength and specific stiffness properties, than widely used conventional metals. In this study, sandwich composite structures under dynamic loads were optimized using the equivalent static load method (ESLM). First, a finite element analysis was performed on the sandwich composite structure, using the high-order sandwich panel theory (HSAPT), considering the core material to be compressible. Further, it was optimized by applying the ESLM to three different sandwich composite structures under different types of dynamic loads. The results of the proposed method and conventional dynamic response optimization method were compared. The ESLM was observed to attain a convergence at a rate 1/24 times faster than the conventional method.",

keywords = "Dynamic load, Equivalent static load method (ESLM), Nonlinear dynamic response optimization, Sandwich composite structures",

author = "Yijae Choi and Wonmo Kang and Jaemin Moon and Kim, {Chang Wan}",

note = "Publisher Copyright: {\textcopyright} 2022",

year = "2022",

month = oct,

day = "15",

doi = "10.1016/j.compstruct.2022.115991",

language = "English (US)",

volume = "298",

journal = "Composite Structures",

issn = "0263-8223",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Optimum design of sandwich composite structures under various dynamic loads using the equivalent static load method

AU - Choi, Yijae

AU - Kang, Wonmo

AU - Moon, Jaemin

AU - Kim, Chang Wan

PY - 2022/10/15

Y1 - 2022/10/15

N2 - Sandwich composite structures are high-performance materials with greater specific strength and specific stiffness properties, than widely used conventional metals. In this study, sandwich composite structures under dynamic loads were optimized using the equivalent static load method (ESLM). First, a finite element analysis was performed on the sandwich composite structure, using the high-order sandwich panel theory (HSAPT), considering the core material to be compressible. Further, it was optimized by applying the ESLM to three different sandwich composite structures under different types of dynamic loads. The results of the proposed method and conventional dynamic response optimization method were compared. The ESLM was observed to attain a convergence at a rate 1/24 times faster than the conventional method.

AB - Sandwich composite structures are high-performance materials with greater specific strength and specific stiffness properties, than widely used conventional metals. In this study, sandwich composite structures under dynamic loads were optimized using the equivalent static load method (ESLM). First, a finite element analysis was performed on the sandwich composite structure, using the high-order sandwich panel theory (HSAPT), considering the core material to be compressible. Further, it was optimized by applying the ESLM to three different sandwich composite structures under different types of dynamic loads. The results of the proposed method and conventional dynamic response optimization method were compared. The ESLM was observed to attain a convergence at a rate 1/24 times faster than the conventional method.

KW - Dynamic load

KW - Equivalent static load method (ESLM)

KW - Nonlinear dynamic response optimization

KW - Sandwich composite structures

UR - http://www.scopus.com/inward/record.url?scp=85135391828&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85135391828&partnerID=8YFLogxK

U2 - 10.1016/j.compstruct.2022.115991

DO - 10.1016/j.compstruct.2022.115991

M3 - Comment/debate

AN - SCOPUS:85135391828

SN - 0263-8223

VL - 298

JO - Composite Structures

JF - Composite Structures

M1 - 115991

ER -

Optimum design of sandwich composite structures under various dynamic loads using the equivalent static load method

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this