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A study on the fracture characteristics of structural adhesives according to the shape of double and tapered double cantilever beams using the finite element method

Authors
Kim, J.-W.Cheon, S.-S.Lyu, S.-K.Cho, J.-U.
Issue Date
Dec-2019
Publisher
Korean Society for Precision Engineeing
Keywords
Double cantilever beam; Fracture characteristic; Reaction force; Structural adhesive; Tapered double cantilever beam
Citation
Journal of the Korean Society for Precision Engineering, v.36, no.12, pp 1157 - 1163
Pages
7
Indexed
SCOPUS
KCI
Journal Title
Journal of the Korean Society for Precision Engineering
Volume
36
Number
12
Start Page
1157
End Page
1163
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/10812
DOI
10.7736/KSPE.2019.36.12.1157
ISSN
1225-9071
2287-8769
Abstract
In this study, the fracture characteristics of structural adhesives were investigated according to the shape of a DCB and TDCB by using the FEM. First, to obtain the reliability of the finite element method, the experimental and FEM analyses were compared, and the reliability was secured. When the graph of reaction force to displacement on the TDCB test specimen was examined, it was found that the smaller the slope, the stronger the exhibited property sustaining the load to the end of the adhesive surface. Maximum reaction force occurred was just before the adhesive was removed. The shear stress of the specimen exhibited the same characteristics and an equivalent stress. Thus, the data of this study resulting in the fracture characteristics of the structural adhesives for each shape can be applied to the design with durability. ? The Korean Society for Precision Engineering This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Lyu, Sung Ki
대학원 (기계항공우주공학부)
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