Axial compressive collapse of ultralight corrugated sandwich cylindrical shells

Peng-Bo Su; Bin Han; Mao Yang; Zi-Han Wei; Zhen-Yu Zhao; Qian-Cheng Zhang; Qi Zhang; Ke-Ke Qin; Tian Jian Lu

Materials & Design (Dec 2018)

Axial compressive collapse of ultralight corrugated sandwich cylindrical shells

Peng-Bo Su,
Bin Han,
Mao Yang,
Zi-Han Wei,
Zhen-Yu Zhao,
Qian-Cheng Zhang,
Qi Zhang,
Ke-Ke Qin,
Tian Jian Lu

Affiliations

Peng-Bo Su: State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 710049, PR China; State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
Bin Han: School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, PR China; School of Engineering, Brown University, Providence, RI 02912, USA; Research institute of Xi'an Jiaotong University, Zhejiang, Hangzhou 311212, PR China; Correspondence to: B. Han, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, PR China.
Mao Yang: State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 710049, PR China; State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
Zi-Han Wei: State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 710049, PR China; State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
Zhen-Yu Zhao: State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 710049, PR China; State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China
Qian-Cheng Zhang: State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 710049, PR China; MOE Key Laboratory for Multifunctional Materials and Structures, Xi'an Jiaotong University, Xi'an 710049, PR China
Qi Zhang: School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, PR China
Ke-Ke Qin: Beijing Electro-Mechanical Engineering Institute, Beijing 10074, PR China
Tian Jian Lu: State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China; MOE Key Laboratory for Multifunctional Materials and Structures, Xi'an Jiaotong University, Xi'an 710049, PR China; Correspondence to: T.J. Lu, State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China.

Journal volume & issue: Vol. 160
pp. 325 – 337

Abstract

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Ultralight all-metallic sandwich cylindrical shells with corrugated cores are designed and fabricated using a method involving tamping and shape correction. Quasi-static axial compressive behaviors of the sandwich shells are investigated using a combined experimental, theoretical and numerical approach. Based on the analytical model and numerical approach, systematic parametric study is carried out to explore the effects of key geometrical parameters on the failure load and energy absorption capacity. Minimum weight design as a function of the failure load is subsequently carried out for the proposed sandwich shell. As an attempt for further performance enhancement, the foam-filled corrugated-core sandwich cylindrical shell is proposed and a preliminary experimental study is carried out. The superiority of sandwich shells over monolithic shells in terms of initial failure load and energy absorption is clearly demonstrated, potentially important for applications demanding simultaneous ultra-lightweight, load-bearing and energy absorption. Keywords: Sandwich cylindrical shell, Corrugated core, Axial compression, Minimum weight design

Published in Materials & Design

ISSN: 0264-1275 (Print); 1873-4197 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-and-design

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