IMECH-IR  > 流固耦合系统力学重点实验室
Numerical analysis of effects of adhesive type and geometry on mixed-mode failure of adhesive joint
Liao LJ(廖丽涓); Huang CG(黄晨光); Liao, LJ (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
Source PublicationINTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
2016
Conference Name8th International Conference on Advanced Computational Engineering and Experimenting (ACEX)
Conference DateJUN 30-JUL 03, 2014
Conference PlaceParis, FRANCE
Abstract

In the present study, the effects of the adhesive type and geometry (adhesive thickness and scarf angle) on mixed-mode failure of double scarf adhesive joint (DSJ) under uniaxial tensile loading were numerically examined using the finite element subroutine which coupled with a mixed-mode cohesive zone model (CZM). Especially, the effects of the adhesive type, which actually represent the influences of the cohesive parameters in mode I and mode II, on the mechanical properties of DSJ were discussed systematically. The numerical results reveal that the ultimate tensile loading and the necessary energy for failure of DSJ are controlled by the intrinsic components in mode I and mode II with different rates. Accordingly, the mathematical expressions for the ultimate tensile loading and the failure energy of DSJ with respect to the thickness-dependency cohesive parameters in two modes (I and II) and the scarf angle were deduced to identify each contribution in each mode component for a given type of adhesive. In addition, the numerical results also demonstrate that relationship between the interface damage level (corresponding to the ultimate tensile loading) and the adhesive thickness is not monotonous. However, as an increase of the adhesive thickness, the uniformity of damage level distribution is enhanced. Furthermore, the variation of the interface damage level with respect to the scarf angle is also not monotonous for each adhesive thickness. It can be concluded that the effects of the scarf angle and the adhesive thickness on the mixed-mode failure of DSJ are coupled rather than independently. (C) 2015 Elsevier Ltd. All rights reserved.

KeywordMixed-mode Failure Cohesive Parameters Cohesive Zone Model (Czm) Double Scarf Adhesive Joint (Dsj) Single-lap Joints Strength Thickness Fracture
WOS IDWOS:000378470400045
DepartmentLMFS冲击与耦合效应(LHO)
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Indexed BySCI ; CPCI-S ; EI
Language英语
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Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60182
Collection流固耦合系统力学重点实验室
Corresponding AuthorLiao, LJ (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Liao LJ,Huang CG,Liao, LJ . Numerical analysis of effects of adhesive type and geometry on mixed-mode failure of adhesive joint[C],2016.
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