Showing papers in "International Journal of Adhesion and Adhesives in 2009"

TL;DR: An extensive literature review on existing analytical models for both single and double-lap joints has been made to assist the designer to choose the right model for a particular application as discussed by the authors, which is generally sufficient because the stresses in the width direction are significantly lower than in the direction of the loading.

TL;DR: In this article, the authors present a survey of the major analytical models for adhesively bonded joints, especially for single lap joints, and a comparative study is made in terms of time requirements and failure prediction for various cases.

TL;DR: In this article, a simple predictive equation is proposed for the design of single lap joints in order to quantify the influence of the adhesive (toughness and thickness), the adherend, the overlap, the test speed, the surface preparation and durability on the lap shear strength.

TL;DR: In this article, the analysis for determining surface free energy uncertainty by the Owens-Wendt method is presented, which is also known as the Kaelble-Owens-Wilson (KOW) method.

TL;DR: In this article, a detailed series of tests and finite element analyses were conducted using a range of loadings, including tension, pure bending, and three-point bending, to determine the effect of using a structural adhesive instead of spot-welding.

TL;DR: In this article, a simple joint strength prediction is proposed for mixed-adhesive joints, which gives joint strength improvements in relation to a brittle adhesive alone in all cases, for a mixed adhesive joint to be stronger than the brittle adhesive and the ductile adhesive used individually.

TL;DR: In this article, dual-curable adhesives were prepared using various epoxy acrylate oligomers, a reactive diluent, photoinitiators, a thermal-curing agent and a filler.

TL;DR: In this paper, a study of moisture absorption and desorption effects in single lap adhesive joints is presented, where experiments were carried out to characterise the moisture uptake of the single part epoxide adhesive, FM73.

TL;DR: In this article, a number of factors determining the durability of structural adhesive joints have been identified and can be grouped in three categories: environment, materials and stresses, and the last category refers to the stresses to which the bond is subjected during or after exposure to service environment, affecting both longevity and residual strength.

TL;DR: In this article, a detailed series of tests supported by finite element analyses was conducted using a range of loadings. And the failure criterion proposed at room temperature is still valid at low and high temperatures, the failure envelope moving up and down as the temperature increases or decreases, respectively.

TL;DR: In this paper, the authors describe the fabrication and assessment of the adhesion of bio-mimetic Gecko hair arrays using photolithographic methods of the type employed in the semiconducting industry and nano-moulding using silicon moulds.

TL;DR: A detailed study of the effect of pre-treatment applied on the surface characteristics of aluminium substrates and on the adhesive strength of epoxy-aluminium joints is reported in this article.

TL;DR: In this article, epoxy adhesive joints of different thicknesses between aluminium substrates have been characterized using physico-chemical analyses (differential scanning calorimetry, DSC; dynamic mechanical analysis, DMA; spectroscopy), nano-indentation and mechanical testing.

TL;DR: In this paper, the authors used a coupled finite element (FE) analysis to determine the stress state in double lap shear (DLS) specimens before and after aging, and the results from these tests have enabled a tension-shear failure envelope to be constructed, which may be used to predict failure in more complex stress states.

TL;DR: In this article, the authors compare sanding and plasma treatment by dielectric barrier discharge (DBD) with respect to their effects on wood surface characteristics, beech, oak, spruce, and Oregon pine were investigated.

TL;DR: In this article, the authors present a theoretical framework for the stress analysis of adhesively bonded tubular lap joint based on a variational principle which minimizes the complementary energy of the bonded system.

TL;DR: In this article, an experimental and numerical study of the tensile behavior of three-dimensional carbon-epoxy adhesively bonded strap repairs is presented, where the adhesive layer was simulated with cohesive elements including a mixed-mode cohesive damage model with trapezoidal traction-separation laws in pure modes I and II, to account for the ductile behaviour of the adhesive used.

TL;DR: In this paper, the effects of both substrate surface condition and the adhesive properties on single-lap aluminium joint resistance were analyzed, and the authors defined a design of experiments in order to quantify the effect of the considered factors and their correlation.

TL;DR: In this paper, a modified Burgers model has been developed for the studied adhesive with a constant modulus of elasticity for the non-relaxing part (describing the instant elastic strain) and variables, dependent on the tensile stress, the parameter values for its relaxing part.

TL;DR: In this article, an improved solution for interfacial stresses in a concrete beam bonded with the FRP plate by including the effect of the adherend shear deformations is presented, where both the shear and normal stresses are assumed to be invariant across the adhesive layer thickness.

TL;DR: In this paper, the authors present the results of experimental and analytical investigations on the long-term behavior of epoxy at the interface between the concrete and the fiber-reinforced polymer (FRP).

TL;DR: In this paper, the authors examined the bonding of commercially available FRP to wood using three commercial epoxy adhesives and found that the integrity of the bond depended not only on the epoxy adhesive in question but also on the FRP type.

TL;DR: In this article, the authors explored the effects of processing variables, including carbon nanotube (CNT) concentration, assembly pressure, and processing temperature, on electrical conductivity of CNT-included electrically conductive adhesives (ECAs).

TL;DR: In this article, dielectric and mechanical analysis of aluminium-epoxy bonded adhesives joints exposed to de-ionized water, aqueous urea solution and salt water at 65 degrees C. The changes observed are the results of plasticization and corrosion.

TL;DR: In this article, the influence of several geometric changes on the tensile residual strength of repaired CFRP composite plates was evaluated and the model was validated by comparison with previously published experimental results.

TL;DR: In this paper, the integrity of the bond depended not only on adhesive type but also on the fiber reinforced polymer (FRP)-strengthened glulam type under consideration.

TL;DR: In this article, a three-parameter, elastic foundation model is proposed to analyze interface stresses of adhesively bonded joints, which does not satisfy the zero-shear-stress boundary conditions at the free edges of the adhesive layer.

TL;DR: In this article, the backface strain (BFS) measurement technique is used to characterise fatigue damage in single-lap adhesive joints subjected to constant amplitude fatigue loading, and a simple predictive model is proposed which divides the fatigue lifetime into different regions depending upon the fatigue load.

TL;DR: In this paper, a high-performance nanoadhesive bonding of titanium for its essential applications to aviation and space has been investigated by dispersing silicate nanoparticles into the ultra-high-temperature-resistant epoxy adhesive at 10-wt% ratio with the matrix adhesive followed by modification of the nanoparticles after curing under high-energy radiation for 6h in the pool of SLOWPOKE-2 nuclear reactor with a dose rate of 37kGy/h to promote crosslink into the adhesive.

TL;DR: In this article, the effect of polymer molecular weight and crosslinking reactions on the end-use properties of the microsphere water-based acrylic pressure-sensitive adhesives (PSA) is presented.