Interfacial failure in adhesive joints: Experiments and predictions

Mendoza-Navarro, Luis Ernesto; Diaz, Alberto Díaz; Castañeda-Balderas, Rubén; Hunkeler, Stéphane; Noret, Romuald

doi:10.1016/j.ijadhadh.2013.02.004

Cited by 26 publications

(7 citation statements)

References 24 publications

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“…The hemp was selected due to its appealing strength and toughness properties as a reinforcement material (50% of glass fibres). It has the higher stiffness than any other natural fibres such as jute, kenaf [11]. More importantly, the specific flexural strength of hemp composite is higher than that of glass fibre composites.…”

Section: Materials and Manufacturingmentioning

confidence: 97%

Taguchi Analysis of Bonded Single-Lap Joint in Hemp Fiber Composite

Lokhande¹,

Deshpande²,

Mache³

2016

IJETS

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The adhesively bonded joints in composite structures are widely used in aerospace and automobile fields. Hemp epoxy composites are better alternative due to its lower specific gravity and higher toughness. . The joining process is inevitable in the application of such composites. The mechanical behaviour of such joints depends on the strength of the composite, adhesive strength and adhesion phenomenon between substrate and adhesive. The influence of overlap length, adhesive layer thickness and cure temperature on the performance of adhesive joints investigated experimentally. The influence of these parameters on the static behaviour of the joint was studied using design of experiment approach. L9 orthogonal array was used for experimental design. It was found that cure temperature of adhesive predominantly governs joint behaviour followed by adhesive layer thickness and overlap length. To obtain joint strength in the working limits, an empirical relationship between governing parameters and response was developed. Through the analysis it was observed that optimum strength of bonded joint was obtained with overlap length of 25 mm, adhesive layer thickness of 0.5 mm and cure temperature of 500C.

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Section: Materials and Manufacturingmentioning

confidence: 97%

Taguchi Analysis of Bonded Single-Lap Joint in Hemp Fiber Composite

Lokhande¹,

Deshpande²,

Mache³

2016

IJETS

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“…A similar approach was adopted by Mendoza-Navarro et al, [131] with the difference that both the peel and shear stresses were included in the stress criterion. The effects of the overlap length and multiaxial loads was correctly captured for steel/polyester resin/steel joints.…”

Section: Finite Fracture Mechanicsmentioning

confidence: 99%

A review on failure theories and simulation models for adhesive joints

Τσερπές

Barroso-Caro

Carraro

et al. 2021

The Journal of Adhesion

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In the framework of the Cost Action CERTBOND (Reliable roadmap for certification of bonded primary structures), a wide group of researchers from 27 European Countries have had the opportunity to work on the topic of certification of bonded joints for primary structural applications from different engineering sectors such as the aerospace, automotive, civil engineering, wind energy and marine sectors. Since virtual testing and optimization are basic tools in the certification process, one of the key objectives of CERTBOND is to critically review some of the available models and failure theories for adhesive joints. The present paper summarizes the outcome of this task. Nine different models/theories are described in detail. Specifically, reviewed are the Classical Analytical Methods, the Process Zone Methods, Linear Elastic Fracture Mechanics (LEFM), the Virtual Crack Closure Technique (VCCT), the Stress Singularity Approach, Finite Fracture Mechanics (FFM), the Cohesive Zone Method (CZM), the Progressive Damage Modeling method and the Probabilistic methods. Also, at the end of the paper, the modeling of temperature effects on adhesive joints have been addressed. For each model/theory, information on the methodology, the required input, the main results, the advantages and disadvantages and the applications are given.

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“…Some failure or strength criteria are usually employed in this approach [5,6], such as the von Mises stress criterion and the principal stress criterion. Other researchers [7] adopted a twofold criterion involving stress and energy conditions simultaneously to predict the failure loads of adhesive joints subjected to diverse loadings. By contrast, the other method to predict the overall strength is a direct one, which is to obtain the load-displacement curves by simulating the loading process of adhesively bonded joints.…”

Section: Introductionmentioning

confidence: 99%

Damage and stress evolution in the bondlines of metallic adhesively bonded joints accompanied by bondline thickness effect

Tao

2015

International Journal of Adhesion and Adhesives

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Metallic adhesively bonded joints have a wide range of applications in engineering fields. The damage and the stress evolution in the bondlines of the joints would occur simultaneously when the joints are subjected to external loads. In the present research, the influence of the bondline thickness on the damage and stress evolution of metallic adhesive bonding structures are investigated, with the cohesive interface model employed to equivalently simulate the bondline with various thicknesses. A prediction approach is employed to determine the cohesive parameters for the bondline with the thickness varied. Then a numerical example is presented to explore the bondline thickness-dependence strength and stress distribution in the bondline, followed by the validation with the existing experimental and theoretical results. Furthermore, as the main part of this paper, the influences of the bondline thickness on the damage and stress evolution in the bondline are investigated, involving the situations of the extremities and the whole bondline. The results show that, no matter in the extremities or in the whole bondline, the damage and stress evolutions are mutually influential processes, both of which are affected by the bondline thickness significantly.

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Interfacial failure in adhesive joints: Experiments and predictions

Cited by 26 publications

References 24 publications

Taguchi Analysis of Bonded Single-Lap Joint in Hemp Fiber Composite

Taguchi Analysis of Bonded Single-Lap Joint in Hemp Fiber Composite

A review on failure theories and simulation models for adhesive joints

Damage and stress evolution in the bondlines of metallic adhesively bonded joints accompanied by bondline thickness effect

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