Development of cohesive zone models for the prediction of damage and failure of glass/steel adhesive joints

Katsivalis, Ioannis; Thomsen, Ole Thybo; Feih, S.; Achintha, Mithila

doi:10.1016/j.ijadhadh.2019.102479

Cited by 39 publications

(25 citation statements)

References 36 publications

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“…The second process is related to the mechanical response of the joint and-more specifically-of the interface and is controlled by a cohesive zone modelling approach. More details on cohesive zone modelling for glass/steel joints can be found in Katsivalis et al (2020a). A simple bi-linear cohesive law was used, which correlated the traction and fracture toughness of the interface as shown in Fig.…”

Section: Numerical Predictive Methodologymentioning

confidence: 99%

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Prediction of moisture diffusion and failure in glass/steel adhesive joints

Katsivalis

Feih

2022

Glass Struct Eng

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Glass/steel adhesive joints are being used increasingly in the construction industry as they offer significant structural advantages over conventional mechanical fastener approaches. However, adhesive joints are also known to be sensitive to moisture diffusion into the bondline, which reduces the interfacial bonding strength for hybrid glass/steel substrates. The effect of moisture on the performance degradation of glass/steel adhesive joints has been successfully predicted assuming adhesive property degradation but requires experimental determination of the affected moisture ingress zone. This study utilizes a multi-physics numerical approach implemented via the commercial finite element code Abaqus 2020, which firstly simulates moisture ingress into the adhesive/glass interface and subsequently couples the diffusion effects with a cohesive zone modelling approach for damage initiation and propagation. The numerical predictions are calibrated against experimental data on glass/steel Double Cantilever Beam (DCB) specimens, which are bonded with a ductile methacrylate adhesive (Araldite 2047–1). The modelling approach is then validated against the experimental response of large double lap shear joints of a significantly different bondline geometry. It is demonstrated that the numerical model successfully predicts the critical exposure time for partial to complete joint degradation enabling the development of engineering guidelines for life-time prediction of various joint geometries.

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Section: Numerical Predictive Methodologymentioning

confidence: 99%

“…The loading of the DCB specimens was displacement-controlled at a fixed rate of 0.5 mm/min, and a minimum of 5 specimens were tested. The load-displacement curves were recorded, and an inverse FE method was used to calculate the critical traction and fracture energy of the interface (see Katsivalis et al (2020a)).…”

Section: Double Cantilever Beam Testingmentioning

confidence: 99%

Prediction of moisture diffusion and failure in glass/steel adhesive joints

Katsivalis

Feih

2022

Glass Struct Eng

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“…They conducted numerical analyzes for various joint configurations that are used to characterize joint parameters (SLJ, double-cantilever beam DCB and end notch flexure ENF). Katsivalis et al [ 24 ] described the possibility of applying cohesive zone models for the prediction of damage and failure of DCB glass/steel joints glued using two different adhesives (epoxy and methacrylate).…”

Section: Introductionmentioning

confidence: 99%

FEM Analysis as a Tool to Study the Behavior of Methacrylate Adhesive in a Full-Scale Steel-Steel Shear Joint

Kałuża

Hulimka

Bula³

2022

Materials

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The use of adhesive to joint structural elements, despite many advantages of this technology, is not a method commonly used in engineering practice, especially in construction. This is mainly due to the poor recognition of the behavior, both in terms of testing and analysis, of joints made on a scale similar to the actual elements of building structures. Therefore, this paper presents the results of model tests and then numerical analyses of adhesively bonded joints made of high-strength steel elements in a full-scale (double-lap joint). In order to properly model the adhesive connection, material tests of the methacrylate adhesive were performed in the field of tensile, shear (in two versions: single lap joint test and thick adherent shear test) and bond properties. Comparison of the results of the model and numerical tests showed very good agreement in terms of the measurable values, which makes it possible to consider the results obtained in the adhesive layer as reliable (not directly measurable in model tests). In particular, the distribution of stresses inside the adhesive layer, the range of plastic zones and areas of loss of adhesion are presented and discussed. The results indicate the possibility of a reliable representation of the behavior of adhesively bonded joints of high-strength steel, thus providing a tool for the analysis of semirigid adhesive in large-size joints.

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“…The increasing diffusion of adhesive joints is due to its advantages (i.e. more uniform distribution of stresses [7], greater contact area between joined materials [8], possibility of joining different materials [9], [10]). There are numerous studies in the literature aimed at investigating the stress distribution in the adhesive layer.…”

Section: Introductionmentioning

confidence: 99%

Thermal Stresses in Adhesively Bonded Joints: Numerical and Analytical Analysis

Marchione

2021

Engineering Science & Technology

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The adhesive technique is observing a considerable increase in applications in various fields. Unlike traditional joining methods, this technology allows the stress peaks and the weight of the resulting structure to be reduced. Adhesive joints during their service life not only undergo mechanical but also thermal stresses. The thermal compatibility between the adhesive and the adherents used is a fundamental aspect to consider in the design phase. This paper reports on and analyses the results obtained from a linear Finite Element Method (FEM) simulation for a hybrid adhesive joint, as the thickness and characteristics of the adhesive layer vary. An analytical solution for adhesive free joints is presented according to both beam and plate theories. The analytical and numerical results, in case of no adhesive, are in good agreement with good approximation. The introduction of the adhesive layer allows to obtain higher displacement values than in the adhesive-free configuration. The increase in displacement and therefore in ductility confirms the effectiveness of the adhesive joint for real applications.

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Development of cohesive zone models for the prediction of damage and failure of glass/steel adhesive joints

Cited by 39 publications

References 36 publications

Prediction of moisture diffusion and failure in glass/steel adhesive joints

Prediction of moisture diffusion and failure in glass/steel adhesive joints

FEM Analysis as a Tool to Study the Behavior of Methacrylate Adhesive in a Full-Scale Steel-Steel Shear Joint

Thermal Stresses in Adhesively Bonded Joints: Numerical and Analytical Analysis

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