딤플형 내부구조 금속 샌드위치 판재의 제작 및 정적 굽힘 실험Fabrication of Metallic Sandwich Plates with Inner Dimpled Shell Structure and Static Bending Test

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Metallic sandwich plates with various inner cores have important new features with not only ultra-light material characteristics and load bearing function but also multifunctional characteristics. Because of production possibility on the large scale and a good geometric precision, sandwich plates with inner dimpled shell structure from a single material have advantages as compared with other solid sandwich plates. Inner dimpled shell structures can be fabricated with press or roll forming process, and then bonded with two face sheets by multi-point resistance welding or adhesive bonding. Elasto-plastic bending behavior of sandwich plates have been predicted analytically and measured. The measurements have shown that elastic perfectly plastic approximation can be conveniently employed with less than 10% error in elastic stiffness, collapse load, and energy absorption. The dominant collapse modes are face buckling and bonding failure after yielding. Sandwich plates with inner dimpled shell structure can absorb more energy than other types of sandwich plates during the bending behavior.
Publisher
대한기계학회
Issue Date
2006-06
Language
Korean
Citation

대한기계학회논문집 A, v.30, no.6, pp.653 - 661

ISSN
1226-4873
URI
http://hdl.handle.net/10203/91773
Appears in Collection
ME-Journal Papers(저널논문)
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