Effect of Alkali on the Impact Toughness of Adhesively Bonded Joints

Min You; Chun Zhi Mei; Wen Jun Liu; Jing Rong Hu; Ling Wu

doi:10.4028/www.scientific.net/AMM.166-169.1904

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 166-169Effect of Alkali on the Impact Toughness of...

Effect of Alkali on the Impact Toughness of Adhesively Bonded Joints

Abstract:

The effect of the temperature and immersed time of the alkali solution on the impact toughness of the adhesively bonded steel single lap joint under impact loading is studied using the experimental method. The results obtained show that the impact toughness of the specimen increased when the immersed time increased then it decreased as it beyond 3 days. When the immersed time is longer than 72 h, the higher the temperature is, the lower the impact toughness of the joint. The moisture absorption of the adhesive layer with the immersed time was also investigated and it was found that there is a relationship to the impact toughness of the adhesively bonded single lap joint. The epoxy adhesive layer was analyzed with FT-IR and it was found that the hydroxyl enhanced and bonding strength may increase after 72 h immersed in alkali solution.

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Periodical:

Applied Mechanics and Materials (Volumes 166-169)

Pages:

1904-1907

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.166-169.1904

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Online since:

May 2012

Authors:

Min You, Chun Zhi Mei, Wen Jun Liu, Jing Rong Hu, Ling Wu

Keywords:

Adhesive, Alkali Solution, FT-IR, Impact Toughness, Single Lap Joint, Temperature

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