Imperfection Mode of Thin Metallic Sandwich Plate with Pyramidal Metallic Inner Structures

Dong-Gyu Ahn; Hyang-Sun Sun

Imperfection Mode of Thin Metallic Sandwich Plate with Pyramidal Metallic Inner Structures

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피라미드형 금속 내부구조체를 가진 얇은 금속샌드위치 판재의 결함 모드

Type: Academic journal

Author: Dong-Gyu Ahn (조선대학교) Hyang-Sun Sun (조선대학교)

Journal: The Korean Society of Mechanical Engineers Transactions of the Korean Society of Mechanical Engineers - A Vol.37 No.2 KCI Accredited Journals SCOPUS

Published: 2013.2

Pages: 187 - 192 (6page)

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Imperfection Mode of Thin Metallic Sandwich Plate with Pyramidal Metallic Inner Structures

Research history (5)

2013

Imperfection Mode of Thin Metallic Sandwich Plate with Pyramidal Metallic Inner Structures

Dong-Gyu Ahn , Hyang-Sun Sun Transactions of the Korean Society of Mechanical Engineers - A 2013.02 Academic journal

2012

A Study of Variation of the Deformed Shape According to Thickness Defects of Thin Sandwich Plate with Sheared Dimple Inner Structures

Dong-Gyu Ahn , Woo-Chul Jung 대한기계학회 춘추학술대회 2012.11 Proceeding

Imperfection Mode of Thin Metallic Sandwich Plate with Pyramidal Metallic Inner Structures

Dong-Gyu Ahn , Hyang-Sun Sun 대한기계학회 춘추학술대회 2012.06 Proceeding

2009

Characteristics of impact energy of ISB panel with sheared dimple inner structures subjected to free boundary conditions

Dong-Gyu Ahn , Gyeong-Heum Nam , Dae-Yong Seong and others 2 Proceedings of the KSMPE Conference 2009.06 Proceeding

2007

Variation of Impact Characteristics of ISB Panels with a Pyramidal Inner Structure According to Joining Technologies

Dong-Gyu Ahn , Gyung-Jae Moon , Chang-Gyun Jung and others 1 Journal of the Korean Society for Precision Engineering 2007.09 Academic journal

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Thin metallic sandwich plate with pyramidal metallic inner structures is manufactured from a continuous projection welding between face sheets and inner structures. Due to the welding pressure, imperfections of inner structures induced by the deformation of the inner structures occur. The imperfections affect the response of the thin metallic sandwich plate subjected to low-velocity impact loading. The goal of this paper is to obtain a proper dominant imperfection mode of the thin metallic sandwich plate with pyramidal metallic inner structures. The variation of impact responses of the thin metallic sandwich plate for different imperfection modes are investigated by finite element analysis. The results of the FE analysis are compared to those of drop impact experiments. From the results of the comparison, it has been shown that the dominant imperfection mode of the thin metallic sandwich plate with pyramidal metallic inner structures is all type of symmetric imperfection mode with symmetrical imperfections of four struts.

#Imperfection Mode(결함 모드) #Thin Metallic Sandwich Plate(얇은 금속 샌드위치 판재) #Pyramidal Metallic Inner Structures(피라미드형 금속 내부구조체) #Finite Element Analysis(유한요소해석) #Impact Response(충격 응답)

초록
Abstract
1. 서론
2. 내부구조체의 결함모드
3. 유한요소해석 및 낙하충격 실험
4. 결과 및 고찰
5. 결론
후기
참고문헌

References (8)

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1. [학술지(정기간행물)] - 박철우 / 2009 / Energy Consumption Reduction Technology in Manufacturing – A Selective Review of Policies, Standards, and Research / International Journal of Precision Engineering and Manufacturing 10 (5) : 151 ~ 173

2. [학술지(정기간행물)] - Wadley, H. N. G / 2003 / Fabrication and Structural Performance of Periodic Cellular Metal Sandwich Structures / Composites Science and Technology 63 (16) : 2331 ~ 2343

3. [학술지(정기간행물)] - Ahn, D. G / 2007 / Mechanical Properties and Failure Characteristics of ISB Panel with Metallic Pyramidal Inner Structures / Journal of Materials Processing Technology 187 (1) : 521 ~ 525

4. [학술지(정기간행물)] - 강기주 / 2007 / 벌크형 와이어직조 카고메 트러스 PCM의 압축거동 (II) / 대한기계학회논문집 A 31 (7) : 792 ~ 799

5. [학술대회논문] - Ahn, D. G / 2011 / Variation of Impact Characteristics of the Thin Lightweight Metallic Sandwich Plate with Truss Inner Structures According to Welding Imperfections / Proceedings of 2011 Spring Annual Meeting of Korean Society of Precision Engineering : 821 ~ 822

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