The relative merits of the Boeing wedge test and the double cantilever beam test for assessing the durability of adhesively bonded joints, with particular reference to the use of fracture mechanics

2009 ◽  
Vol 29 (6) ◽  
pp. 609-620 ◽  
Author(s):  
R.D. Adams ◽  
J.W. Cowap ◽  
G. Farquharson ◽  
G.M. Margary ◽  
D. Vaughn
Keyword(s):  
Fracture Mechanics ◽  
Cantilever Beam ◽  
Double Cantilever Beam ◽  
Bonded Joints ◽  
Beam Test ◽  
Adhesively Bonded ◽  
Adhesively Bonded Joints ◽  
Double Cantilever Beam Test

Fracture response of double cantilever beam subject to thermal fatigue

2018 ◽  
Vol 53 (7) ◽  
pp. 504-516 ◽  
Author(s):  
Mbarka Mohamed ◽  
Farid Taheri
Keyword(s):  
Cantilever Beam ◽  
Double Cantilever Beam ◽  
Thermal Fluctuations ◽  
Mechanical Degradation ◽  
Beam Specimen ◽  
Bonded Joints ◽  
Thermal Cycles ◽  
Adhesively Bonded ◽  
Computational Framework ◽  
Adhesively Bonded Joints

When adhesively bonded joints undergo thermal fluctuations, they become fatigued and suffer mechanical degradation. A comprehensive experimental investigation is conducted to examine the performance and degradation of adhesively bonded joints, in the form of the standard double cantilever beam specimen, subject to various levels of cyclic thermal loadings. Results indicate that regardless the number of applied thermal cycles, the joint experiences degradation of its interface adhesive, and that the degradation evolves as the number of thermal cycles increases, leading to the gradual degradation of the overall interface strength. Also, a computational framework, using the cohesive zone modeling technique, is developed for predicting the growth of a crack under the thermal and subsequent mechanical loadings. The good agreement observed between the computational and experimental results validates the integrity of the developed computational framework.

Numerical and experimental analyses of a fracture mechanics test for adhesively bonded joints

1999 ◽  
Vol 13 (8) ◽  
pp. 931-957 ◽  
Author(s):  
F. Bay ◽  
P.O. Bouchard ◽  
E. Darque-Ceretti ◽  
E. Felder ◽  
S. Scotto-Sheriff
Keyword(s):  
Fracture Mechanics ◽  
Bonded Joints ◽  
Adhesively Bonded ◽  
Adhesively Bonded Joints ◽  
Experimental Analyses
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