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Experimental Investigation of Shear Modulus of a Core in a Metallic Sandwich Plate with a Truss Core  

Jung, Chang-Gyun (KAIST 기계항공시스템학부 대학원)
Seong, Dae-Young (KAIST 기계항공시스템학부 대학원)
Yang, Dong-Yol (KAIST 기계항공시스템학부)
Moon, Kyung-Je (조선대학교 기계공학과 대학원)
Ahn, Dong-Gyu (조선대학교 기계공학과)
Publication Information
Journal of the Korean Society for Precision Engineering / v.24, no.8, 2007 , pp. 67-73 More about this Journal
Abstract
A sandwich plate with a truss core is composed of two face sheets and a pyramidal truss core between face sheets. This paper shows how to estimate the shear modulus of a truss core, experimentally. To determine the shear modulus of truss cores, 3-point bending tests are performed. For tests, metallic sandwich beams with truss cores are fabricated. Two kinds of truss cores are tested to investigate the shear modulus. Each test is repeated under different widths in order to increase accuracy. As a result, the shear modulus of sandwich beam is properly calculated. The deflection of a sandwich beam with a truss core by shear deformation takes the major contribution of the total deflection and the shear modulus of sandwich beam should be considered whenever it is designed.
Keywords
Sandwich beam; Truss core; Shear modulus; 3-point bending test;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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