Failure Criteria of Adhesive Joints between Aluminum Circular Pipes under Multiaxial Stress State

Hiro Tanaka; Mayuko Kimura; Masato Iimori; Yoji Shibutani; Yang Liu

doi:10.4028/www.scientific.net/KEM.725.383

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 725Failure Criteria of Adhesive Joints between...

Failure Criteria of Adhesive Joints between Aluminum Circular Pipes under Multiaxial Stress State

Abstract:

In this study, we developed a new conceptual test method of adhesive joining using aluminum circular pipes with sloping bonded surfaces to evaluate the failure strength of the adhesive layer under a multiaxial stress state. In our experiment, we prepared several test specimens made of A5052 aluminum with cross-sectional surfaces possessing angles of inclination varying from 0–90 degrees. We then carried out uniaxial tensile tests, employing paired aluminum pipe halves joined by adhesives. From the load‒displacement curves, we estimated the first invariant of the stress tensor and the second invariant of the deviatoric stress tensor, and we applied two kinds of criteria, both of which effectively represent the failure stress of the adhesive joint. According to the failure criteria, the thickness-dependent strength of the adhesive layer and its power law are discussed.

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Advances in Engineering Plasticity and its Application XIII

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Periodical:

Key Engineering Materials (Volume 725)

Pages:

383-388

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.725.383

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Online since:

December 2016

Authors:

Hiro Tanaka*, Mayuko Kimura, Masato Iimori, Yoji Shibutani, Yang Liu

Keywords:

Adhesive Joint, Failure Criterion, Multiaxial Stress State, Uniaxial Tensile Test

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