Assessment of the creep life of adhesively bonded joints using the end notched flexure samples

被引：14
作者：
Carneiro Neto, R. M. [1 ]
Akhavan-Safar, A. [2 ]
Sampaio, E. M. [3 ]
Assis, J. T. [3 ]
da Silva, L. F. M. [4 ]
机构：
[1] Fed Univ Rio Janeiro, Ctr Technol & Applicat Composite Mat, Macae, RJ, Brazil
[2] Inst Sci & Innovat Mech & Ind Engn INEGI, Rua Dr Roberto Frias, P-4200465 Porto, Portugal
[3] Univ Estado Rio De Janeiro, Polytech Inst, Lab Adhes & Adherence, Nova Friburgo, RJ, Brazil
[4] Univ Porto, Fac Engn, Dept Engn Mecan, Rua Dr Roberto Frias, P-4200465 Porto, Portugal
来源：
ENGINEERING FAILURE ANALYSIS | 2022年 / 133卷
关键词：
Creep; ENF test; Creep fracture energy; Mode II; Bonded joints; Durability; FAILURE;
D O I：
10.1016/j.engfailanal.2021.105969
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The behavior of polymeric adhesives is time and temperature dependent, as they are considered viscoelastic materials. These materials can undergo creep deformation even at low stress levels and room temperature. This way, a viscous flow can occur at the adhesive layer and it can lead to viscous deformation, causing a modification in the adhesive properties. The current work aims to investigate the shear creep fracture energy of an epoxy adhesive using end notched flexure (ENF) samples creep tested until failure. The endurance creep limit for cracked bonded joints subjected to pure shear loading conditions is also investigated using ENF samples, representing the maximum creep load which ENF bonded joints can sustain without creep fracture after a specified time. The GIICr-life curve was obtained where the GIIcr is the mode II creep fracture energy. Results showed that small changes in creep load can significantly change the creep endurance limit. Creep fracture energy can be employed for joint design against creep service loads.
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页数：9
相关论文
共 27 条
[1]   Optimum creep lifetime of Polymethyl Methacrylate (PMMA) tube using rheological creep constitutive models based on experimental data [J].
Adibeig, Mohammad Reza ;
Hassanifard, Soran ;
Vakili-Tahami, Farid .
POLYMER TESTING, 2019, 75 :107-116
[2]   A modified degradation technique for fatigue life assessment of adhesive materials subjected to cyclic shear loads [J].
Akhavan-Safar, Alireza ;
Monteiro, Joao ;
Carbas, Ricardo ;
Marques, Eduardo ;
Goyal, Rakesh Kumar ;
da Silva, Lucas .
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE, 2021, 235 (03) :550-559
[3]  
[Anonymous], 2008, MODELING ADHESIVELY
[4]   An updated review of adhesively bonded joints in composite materials [J].
Budhe, S. ;
Banea, M. D. ;
de Barros, S. ;
da Silva, L. F. M. .
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES, 2017, 72 :30-42
[5]   Effect of creep on the mode II residual fracture energy of adhesives [J].
Carneiro Neto, Ranulfo M. ;
Akhavan-Safar, Alireza ;
Sampaio, Eduardo M. ;
Assis, Joaquim T. ;
da Silva, Lucas F. M. .
JOURNAL OF APPLIED POLYMER SCIENCE, 2021, 138 (47)
[6]   Effect of surface treatment on adhesively bonded aluminium-aluminium joints regarding aeronautical structures [J].
Correia, Sergio ;
Anes, Vitor ;
Reis, Luis .
ENGINEERING FAILURE ANALYSIS, 2018, 84 :34-45
[7]   A cohesive zone element for mode I modelling of adhesives degraded by humidity and fatigue [J].
Costa, M. ;
Viana, G. ;
Creac'hcadec, R. ;
da Silva, L. F. M. ;
Campilho, R. D. S. G. .
INTERNATIONAL JOURNAL OF FATIGUE, 2018, 112 :173-182
[8]   Mode II Fracture Toughness of a Brittle and a Ductile Adhesive as a Function of the Adhesive Thickness [J].
da Silva, Lucas F. M. ;
de Magalhaes, F. A. C. R. G. ;
Chaves, F. J. P. ;
de Moura, M. F. S. F. .
JOURNAL OF ADHESION, 2010, 86 (09) :889-903
[9]  
da Silva RH, 2020, DEV PIPE REPAIRS U 1, V100, DOI [10.1016/j.ijadhadh.2020.102594, DOI 10.1016/J.IJADHADH.2020.102594]
[10]   A new data reduction scheme for mode I wood fracture characterization using the double cantilever beam test [J].
de Moura, M. F. S. F. ;
Morais, J. J. L. ;
Dourado, N. .
ENGINEERING FRACTURE MECHANICS, 2008, 75 (13) :3852-3865
123