Mechanical Characterization of Adhesive Layer<i>in-situ</i>and as Bulk Material

Dolev, G.; Ishai, O.

doi:10.1080/00218468108071207

Cited by 54 publications

(12 citation statements)

References 12 publications

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“…Therefore, when evaluating the stress distributio n in adhesive joints with rubber-modi ed adhesives, the void formation and growth should not be neglected. For example, if the adhesive layer in a butt joint is assumed as a continuum material governed by the von Mises yield criterion, the yield stress in the adhesive would be overestimated because of the decrease in the von Mises equivalent stress due to expansion stress in the adhesive layer [6,7]. In most studies, however, the adhesive layer is still considered as a continuum material governed by the von Mises yield criterion.…”

Section: Introductionmentioning

confidence: 96%

Yield behavior of rubber-modified epoxy adhesives under multiaxial stress conditions

Imanaka¹,

Suzuki²

2002

Journal of Adhesion Science and Technology

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In rubber-modi ed epoxy resins, a damage zone is generated in the vicinity of the crack tip due to the cavitation of rubber particles, which improves fracture toughness dramatically. Hence, in evaluating the stress distribution in adhesive joints with rubber-modi ed adhesives, the void formation and growth should be taken into account. In most studies, however, the adhesive layer is still considered as a continuum material governed by the von Mises yield criterion. For many ductile materials, Gurson's model is used for the stress analysis, in which the void formation and growth is taken into account. In a previous study, using adhesively bonded scarf and torsional butt joints, the effect of stress triaxiality on the yield stress in the adhesive layer was investigated. In this study, these experimentally-obtained yield stresses were compared with those obtained by a nite element method, where Gurson's constitutive equations were applied to the adhesive layer. As a result, the calculated yield stresses agreed well with the experimentally-obtained yield stresses. This indicates that Gurson's model is a useful tool for estimating stress distributions in adhesive joints with rubbermodi ed adhesives.

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Section: Introductionmentioning

confidence: 96%

Yield behavior of rubber-modified epoxy adhesives under multiaxial stress conditions

Imanaka¹,

Suzuki²

2002

Journal of Adhesion Science and Technology

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“…Figure 2.52 shows on the same graph three stress-strain curves obtained by compression on bulk specimens (ASTM D 695), tension on bulk specimens (EN ISO 527-2), and shear using the TAST (ISO 11003-2). The predicted shear stress-strain curve using a modified von Mises model [54] from the compressive and tensile results is also shown. The agreement with the experimental shear curve is very good.…”

Section: Properties Determinationmentioning

confidence: 99%

Quasi‐Static Constitutive and Strength Tests

Silva

Roumagnac²,

Heuillet³

et al. 2012

Testing Adhesive Joints

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“…The dependency on the hydrostatic stress has been illustrated experimentally [19][20][21][22][23] and numerically [24][25][26] and must therefore be taken into account. Adhesive joints subjected to combined loads exhibit a large ratio between the tangential and normal nonlinear response, [27,28] thus making it necessary to use the non-associated formalism to describe their behaviour.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the moisture effect on the mechanical behaviour of an adhesively bonded joint under proportional multi-axial loads

Arnaud

Créac’Hcadec

Cognard

et al. 2015

Journal of Adhesion Science and Technology

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International audienceThe objective of the study is to identify the 3D behaviour of an adhesive in an assembly, and to take into account the effect of ageing in a marine environment. To that end, three different tests were employed. Gravimetric analyses were used to determine the water diffusion kinetics in the adhesive. Bulk tensile tests were performed to highlight the effects of humid ageing on the adhesive behaviour. Modified Arcan tests were performed for several ageing times to obtain the experimental database which was necessary to identify constitutive models. A Mahnken–Schlimmer type model was determined for the unaged state according to a procedure developed in a previous study. This identification used inverse techniques. It was based on the unaged modified Arcan results and on a coupling between an optimisation routine and finite-element analysis. Then, a global inverse identification procedure was developed. Its aim was to relate the unaged parameters to the moisture concentration and overcome the difficulties usually associated with ageing of bonded assemblies in a humid environment: a non-uniformity of the stress state and a gradient of mechanical properties in the adhesive. This procedure was similar to the one used in the first part but needed modified Arcan results for several ageing times. It also required an initial assumption for the evolution of the Mahnken–Schlimmer parameters with the moisture concentration

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Mechanical Characterization of Adhesive Layerin-situand as Bulk Material

Cited by 54 publications

References 12 publications

Yield behavior of rubber-modified epoxy adhesives under multiaxial stress conditions

Yield behavior of rubber-modified epoxy adhesives under multiaxial stress conditions

Quasi‐Static Constitutive and Strength Tests

Analysis of the moisture effect on the mechanical behaviour of an adhesively bonded joint under proportional multi-axial loads

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