Investigation of internal step and metal part reinforcement on joint strength in the adhesively bonded joint: Experimental and numerical analysis

2020 ◽  
Vol 108 ◽  
pp. 102613 ◽  
Author(s):  
Simay Bayramoglu ◽  
Kübra Demir ◽  
Salih Akpinar
Keyword(s):  
Numerical Analysis ◽  
Joint Strength ◽  
Adhesively Bonded ◽  
Metal Part ◽  
Bonded Joint ◽  
Adhesively Bonded Joint

153 Improvement of Joint Strength for Adhesively Bonded Joint by Easy Machining Adherend

2015 ◽  
Vol 2015 (0) ◽  
pp. 28-29
Author(s):  
Tetsushi SANO ◽  
Jyo SHIMURA ◽  
Shigeru KUROSAKI ◽  
Mutsumi MIYAGAWA
Keyword(s):  
Joint Strength ◽  
Adhesively Bonded ◽  
Bonded Joint ◽  
Adhesively Bonded Joint

scholarly journals Investigation of Defect Effects on Adhesively Bonded Joint Strength Using Cohesive Zone Modeling

2018 ◽  
Vol 68 (3) ◽  
pp. 5-24
Author(s):  
Jamal-Omidi Majid ◽  
Mohammadi Suki Mohammad Reza
Keyword(s):  
Material Properties ◽  
Cohesive Zone ◽  
Joint Strength ◽  
Adhesive Layer ◽  
Cohesive Zone Modeling ◽  
Adhesively Bonded ◽  
Bonded Joint ◽  
Degraded Material ◽  
Zone Modeling ◽  
Adhesively Bonded Joint

AbstractIn this paper, effects of the defect in an adhesively bonded joint have been investigated using cohesive zone modeling. Consequently, a 3D finite element model of a single lap-joint is constructed and validated with experiments. Strength prediction of current model is found desirable. Accordingly, different sizes of square shape defects are imported to model in the form of changing (raised or degraded) material properties (heterogeneity) and locally delaminated areas (as inclusion/void), respectively. Joint strength is investigated and a stress analysis is carried out for adhesive layer and adherends. Obtained Results show that, defect has significant impact on the results. It is found that at constant size of defect, local delamination has more impact on bonded joint strength than the heterogeneity. Furthermore, stress analyses demonstrate that the stress field does not change in adherends by taking defects into account. However, stress values decrease with degraded material properties and joint’s strength. Through evaluation of peel and transverse shear stresses in adhesive layer it is found that there is a change of stress distribution for both types of defects. Whereas, there is a considerable stress concentration in the delaminated adhesive layer.

Evaluation of adhesively bonded joint strength of CFRP with laser treatment

2015 ◽  
Vol 25 (4) ◽  
pp. 317-327 ◽  
Author(s):  
Tomohiro Yokozeki ◽  
Masaru Ishibashi ◽  
Yayoi Kobayashi ◽  
Hideyasu Shamoto ◽  
Yutaka Iwahori
Keyword(s):  
Laser Treatment ◽  
Joint Strength ◽  
Adhesively Bonded ◽  
Bonded Joint ◽  
Adhesively Bonded Joint

GS0324 A Trial on Improvement of Adhesively Bonded Joint Strength by Easy Machining Adherend

2016 ◽  
Vol 2016.22 (0) ◽  
pp. _GS0324-1_-_GS0324-2_
Author(s):  
Tetsushi SANO ◽  
Jyo SHIMURA ◽  
Mutsumi MIYAGAWA ◽  
Shigeru KUROSAKI
Keyword(s):  
Joint Strength ◽  
Adhesively Bonded ◽  
Bonded Joint ◽  
Adhesively Bonded Joint

Improvement of Joint Strength for Adhesively Bonded Joint by Easy Machining Adherend

2016 ◽  
Vol 2016 (0) ◽  
pp. 101
Author(s):  
Tetsushi SANO ◽  
Jyo SHIMURA ◽  
Shigeru KUROSAKI ◽  
Mutsumi MIYAGAWA
Keyword(s):  
Joint Strength ◽  
Adhesively Bonded ◽  
Bonded Joint ◽  
Adhesively Bonded Joint

Impact of manufacturing imperfections and surface defects on stress–strain behaviour of flexible adhesive joints

2020 ◽  
Vol 234 (5) ◽  
pp. 499-510
Author(s):  
P Liška ◽  
B Nečasová ◽  
J Šlanhof ◽  
P Schmid ◽  
V Motyčka
Keyword(s):  
Joint Strength ◽  
Surface Defects ◽  
Negative Impact ◽  
Deformation Behaviour ◽  
Adhesively Bonded ◽  
Adhesion Promoter ◽  
Premature Failure ◽  
Lap Shear ◽  
Manufacturing Techniques ◽  
Adhesively Bonded Joint

Precise adherence to the manufacturer’s instructions and requirements plays an important role in various installation processes. The presented paper deals with the evaluation of the effect of manufacturing imperfections and surface defects on the failure behaviour of flexible adhesive intended for façade application. The failure to comply with the accepted procedures is more common in construction practice than in other sectors of the industry, mostly due to the surrounding conditions and lack of trained supervision. Unfortunately, this may lead to premature failure of adhesively bonded joints and a considerable shortening of the service life of the entire construction. To determine the potential of the risk, five types of artificially applied (a) manufacturing imperfections: (1) application on wet adhesion promoter, (2) application after the expiry of the laying-time, (3) curing of samples at +1℃ (b) surface defects: (4) application on a wet substrate and (5) application on a dirty surface, were suggested. Moreover, the Taguchi L32 orthogonal array design was used to arrange the test setup of all possible combinations. The 1 K polyurethane adhesive was applied in tensile butt joints and single-lap shear joints composed of aluminium alloy and thermally modified wood substrates. The obtained results confirmed that non-observance of the required manufacturing techniques and recommended procedures can have a negative impact on the decrease of the adhesively bonded joint strength and deformation behaviour. Surprisingly, the most critical was not the combination of all suggested types of imperfections and defects. The performed one-way ANOVA revealed that the most perilous was the combination of types 2 and 4 in the tensile test with 77% joint strength reduction. In the shear test, the most critical was the combination of all types of imperfection and defects which led also to a 77% drop of shear strength.

Automotive Structures: Design for Disassembly and the Role of Adhesive Bonding

2013 ◽  
Vol 765 ◽  
pp. 721-725 ◽  
Author(s):  
Allan Hutchinson ◽  
Patricia H. Winfield ◽  
Denise Morrey
Keyword(s):  
Adhesive Bonding ◽  
Adhesively Bonded ◽  
Foaming Agents ◽  
Material Recovery ◽  
Volumetric Expansion ◽  
Functional Additives ◽  
Bonded Joint ◽  
The Matrix ◽  
Adhesively Bonded Joint

A controllable adhesive disbonding mechanism can be achieved by activating functional additives located within the matrix of an adhesively bonded joint. This action facilitates the disassembly and material recovery from structurally bonded assemblies. The engineering capabilities of bonded joints containing a range of physical foaming agents were investigated. The effect of the physical foaming agents on joint disassembly was mostly attributable to the volumetric expansion efficiency of the additive whilst constrained within an adhesive matrix.

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