Fatigue Behaviour of Adhesive Joints

Jeandrau, Jean-Pierre; Peyrac, Catherine; Lefèbvre, Fabien; Renard, Jacques; Gantchenko, Vladimir; Patamaprohm, Baramee; Guinault, Clément

doi:10.1016/j.proeng.2015.12.622

Cited by 18 publications

(7 citation statements)

References 3 publications

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“…It is important to note that fatigue in adhesive joints was present and not only quasi-static fracture can be expected, but cyclic damage can occur if dynamic loads were applied. Fracture surface of specimens failed in fatigue showed characteristics such as striations, river patterns in the crack propagation direction and particle displacements linked to a dynamic load response, confirming the probability to experience a fracture below the maximum static strength as reported [3,4]. The fatigue behavior observed in these adhesive joints was consistent and the scatter was moderate.…”

Section: Discussionsupporting

confidence: 80%

“…A single type material in structure is rarely realistic, because its employment depends basically on the maximum stress (and its orientation) that the structure can withstand. Even if metals cannot be excluded as fundamental base material from many applications, plastic materials are used because their low weight (2.7 or 7.8 times lighter than aluminum or steel, respectively), high corrosion resistance, excellent formability and greater design flexibility [3]. Fatigue is undoubtedly a very important type of loading for many structural components that contain adhesive bonding systems.…”

Section: Introductionmentioning

confidence: 99%

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Fatigue strength evaluation and fracture behavior of joined dual phase steel/AA6061-T6 aluminum alloy

Gonzalez

Mora

Gutiérrez

et al. 2019

Frattura Ed Integrità Strutturale

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The fatigue strength evaluation and fracture behavior for a dual phase steel-AA6061-T6 bonded joints with three different adhesives (DC-80, Betamate 120 and MP55420) are presented in this paper. Single lap shear tests were used to determine maximum shear loads, for the single lap shear testing for 5.0 mm overlap length were 2 to 3.5 times higher in comparison to the 12.7 mm overlap length specimens. The results for the strain measurement revealed that higher strain-stress were developed in the 6061-T6 aluminum alloy adherend and in all cases they were lower than the adherends yield strength. Fatigue testing was carried out at 30, 50 and 70 % of the maximum shear load, 0.1 of reversibility load ratio (R) and 30 Hz of frequency. After

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Section: Discussionsupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Fatigue strength evaluation and fracture behavior of joined dual phase steel/AA6061-T6 aluminum alloy

Gonzalez

Mora

Gutiérrez

et al. 2019

Frattura Ed Integrità Strutturale

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“…Huang et al [ 17 ] applied the same method to GFRP/epoxy joints under cyclic mixed-mode load conditions, even using DIC to measure the deformation at the crack tip. Two alternative approaches are usually employed to analyze the fatigue response in bonded joints; namely, the stress-life and the fatigue-crack propagation approaches, respectively [ 18 , 19 ]. The benefits that surface pretreatments have over the static strength of adhesively bonded joints also extend to the fatigue response [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of the Influence of the Surface Preparation on the Fatigue Behavior of Polyamide Single Lap Joints

Musiari

Moroni

2021

Materials

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The low quality of adhesion performance on polymeric surfaces has forced the development of specific pretreatments able to toughen the interface between substrate and adhesive. Among these methods, atmospheric pressure plasma treatment (APPT) appears particularly suitable for its environmental compatibility and its effectiveness in altering the chemical state of the surface. In this work, an experimental study on adhesively bonded joints realized using polyamide as substrates and polyurethane as the structural adhesive was carried out with the intent to characterize their fatigue behavior, which represents a key issue of such joints during their working life. The single lap joint (SLJ) geometry was chosen and several surface pretreatments were compared with each other: degreasing, abrasion (alone and followed by APPT) and finally APPT. The results show that the abrasion combined with APPT presents the most promising behavior, which appears consistent with the higher percentage of life spent for crack propagation found by means of DIC on this class of joints with respect to the others. APPT alone confers a good fatigue resistance with respect to the simple abrasion, especially at a low number of cycles to failure.

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“…The construction application of adhesive materials requires, among others, the knowledge of their durability to variable impact loadings [11]. Bonded structures have high fatigue endurance, if the glue joints are loaded within a limited extent.…”

Section: Introductionmentioning

confidence: 99%

Impact of Frequency of Load Changes in Fatigue Tests on the Temperature of the Modified Polymer

Komorek

Krzyżak

et al. 2017

Int J Thermophys

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In the article, the authors describe the analysis of the impact of the frequency of fatigue tests on the temperature of the modified polymer. The base material for producing the samples was the epoxy resin Epidian 57 cured with Z1 hardener. The presented study is part of a research program of adhesive joints made with the composition Epidian 57/Z1 aiming to determine the effect of physical modification of the adhesive composition on its properties and on the properties of adhesive joints made with such a modified composition. The tested adhesive compositions were modified by additions of micro-and nanoparticles in an amount of 1.85 % (micro-and nanoparticles) or 10 % (microparticles) in weight, depending on the type of the particles. In the studies, the authors used the particles of tungsten, microspheres and carbon nanotubes. The polymer samples produced by casting were loaded with compressive identical, one-sided loads at two different frequencies of load changes. During the tests, the authors recorded the temperature changes as a function of the number of cycles. The changes in the temperature field on the surface of the samples during the tests were observed by the infrared camera. As a result of the studies, it was possible to observe a significant impact of the composition of the polymer and the frequency of load changes during the test on the temperature of the sample.

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Fatigue Behaviour of Adhesive Joints

Cited by 18 publications

References 3 publications

Fatigue strength evaluation and fracture behavior of joined dual phase steel/AA6061-T6 aluminum alloy

Fatigue strength evaluation and fracture behavior of joined dual phase steel/AA6061-T6 aluminum alloy

Experimental Study of the Influence of the Surface Preparation on the Fatigue Behavior of Polyamide Single Lap Joints

Impact of Frequency of Load Changes in Fatigue Tests on the Temperature of the Modified Polymer

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