The Effect of Temperature on the Strength of Adhesively-Bonded Composite-Aluminium Joints

Adams, Robert D.; Mallick, Vishal

doi:10.1080/00218469308026585

Cited by 78 publications

(18 citation statements)

References 6 publications

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“…Studies that present experimental results on adhesive joints with structural adhesives (especially epoxies) as a function of temperature generally show a decrease in strength with both increasing and decreasing temperatures [3,[8][9][10][11]. At high temperatures the cause is the lower adhesive strength while at low temperatures the high thermal stresses and the brittleness of the adhesive are the origin of such behaviour.…”

Section: Introductionmentioning

confidence: 99%

“…The influence of temperature and strain rate on the strength of the adhesive joints is an important factor to consider in the design of adhesive joints. The most significant factors that determine the strength of an adhesive joint when used over a wide temperature range are: the cure shrinkage [1], the coefficient of thermal expansion (CTE) of adhesive (especially when compared to the CTE of the substrates) [2], and change in adhesive mechanical properties with temperature [3][4][5][6][7]. However, due to the polymeric nature of adhesives, the variation of the mechanical properties of the adhesives with temperature is one of the most important factors to consider when designing a bonded joint.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Temperature and Loading Rate on the Mechanical Properties of a High Temperature Epoxy Adhesive

Banea

Sousa

Silva

et al. 2011

Journal of Adhesion Science and Technology

119

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The variation of the mechanical properties of adhesives with temperature and strain rate is one of the most important factors to consider when designing a bonded joint due to the polymeric nature of adhesives. It is well known that adhesive strength generally shows temperature dependence. Moreover, in many structural applications, the applied loads can be dynamic and the design of the joint requires the knowledge of the high loading rate mechanical behaviour of the adhesive.In this study, the combined effect of the temperature and test speed on the tensile properties of a high temperature epoxy adhesive was investigated. Tensile tests were performed at three different test speeds and various temperatures (room temperature (RT) and high temperatures (100, 125 and 150 • C)). The glass transition temperature (T g ) of the epoxy adhesive investigated is approximately 155 • C. The ultimate tensile stress decreased linearly with temperature (T ) while increased logarithmically with the loading rate, which is in the accord with the Airing's molecular activation model.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Temperature and Loading Rate on the Mechanical Properties of a High Temperature Epoxy Adhesive

Banea

Sousa

Silva

et al. 2011

Journal of Adhesion Science and Technology

119

View full text Add to dashboard Cite

show abstract

“…The most significant factors that determine the strength of an adhesive joint when used over a wide temperature range are: the cure shrinkage [1], the coefficients of thermal expansion (CTE), (especially when compared to the CTE of the substrates) [2] and different adhesive mechanical properties with temperature such as the stressstrain curve and the toughness [3][4][5][6][7][8]. However, due to the polymeric nature of adhesives, the variation of the mechanical properties of the adhesives with temperature is generally the most important factor to consider when designing a bonded joint.…”

Section: Introductionmentioning

confidence: 99%

Effect of temperature on the shear strength of aluminium single lap bonded joints for high temperature applications

Banea

Silva

Campilho³

2012

Journal of Adhesion Science and Technology

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An experimental and numerical investigation into the shear strength behaviour of adhesive single lap joints (SLJs) was carried out in order to understand the effect of temperature on the joint strength. The adherend material used for the experimental tests was an aluminium alloy in the form of thin sheets, and the adhesive used was a high-strength high temperature epoxy. Tensile tests as a function of temperature were performed and numerical predictions based on the use of a bilinear cohesive damage model were obtained. It is shown that at temperatures below T g , the lap shear strength of SLJs increased, while at temperatures above T g , a drastic drop in the lap shear strength was observed. Comparison between the experimental and numerical maximum loads representing the strength of the joints shows a reasonably good agreement.

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“…Single-and double-lap joints (SLJ and DLJ, respectively) have been used to evaluate the shear strength of bonded composite-to-aluminium joints [3][4][5][6]. Analytical and numerical studies have been also performed in order to predict the lap shear strength of bonded joints with dissimilar adherends [7][8][9]. A special focus has been given on the thermal stresses that can derive from bonding two materials with different coefficients of thermal expansion.…”

Section: Introductionmentioning

confidence: 99%

Adhesion Properties of Bonded Composite-to-Aluminium Joints Using Peel Tests

Freitas

Sinke

2014

The Journal of Adhesion

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In this research, the adhesion properties of bonded compositeto-aluminium joints are evaluated using floating roller peel tests. Tests were performed using two different adhesives and different adherend lay-ups: composite-to-aluminium, composite-to-composite and aluminium-to-aluminium. The results show that floating roller peel tests, widely used in metal bonding, can also be used to assess adhesion properties of composite bonding and compositeto-aluminium bonding. However, attention should be paid on which results are important to take from the peel tests. In adhesion tests, the failure mode is more important than the failure load. The peel load can only be compared when using exactly the same type of flexible adherend. Even when the adhesion properties are good (cohesive failure), the peel load value can decrease up to a factor of 10 when peeling off a composite flexible adherend instead of an aluminium flexible adherend.

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The Effect of Temperature on the Strength of Adhesively-Bonded Composite-Aluminium Joints

Cited by 78 publications

References 6 publications

Effects of Temperature and Loading Rate on the Mechanical Properties of a High Temperature Epoxy Adhesive

Effects of Temperature and Loading Rate on the Mechanical Properties of a High Temperature Epoxy Adhesive

Effect of temperature on the shear strength of aluminium single lap bonded joints for high temperature applications

Adhesion Properties of Bonded Composite-to-Aluminium Joints Using Peel Tests

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