Bendable metallic sandwich plates with a sheared dimple core

Received 17 July 2009; received in revised form 18 January 2010; accepted 4 March 2010. published online 08 March 2010.

Most structured sandwich plates cannot be simply deformed by conventional forming operations. Bendable sandwich plates with a sheared dimple core were introduced to expand the application fields. The core shear strength increased as the gap between the attachment points decreased. This characteristic produces benefits, such as preventing face buckling and core shear failure. U-bending experiments have shown that the designed sandwich plates can be bent successfully with a drastically small relative bending radius of 3.33.

Keywords: Bendable sandwich plate, Sheared dimple core, U-bending, Brazing

a Department of Mechanical Engineering, KAIST, Science Town, Daejeon 305-701, South Korea

b Department of Product Design and Manufacturing, Seoul National University of Technology, Seoul 139-743, South Korea

c Sungwoo Hitech Co. Ltd., 940-15, Kijang-Kun, Busan, South Korea

Corresponding author. Tel.: +82 42 350 3214; fax: +82 42 350 5214.

PII: S1359-6462(10)00160-0

doi:10.1016/j.scriptamat.2010.03.022

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