Evaluation of Shear Debonding in Double Lap Joints of Sandwich Type

Dragoş Alexandru Apostol; Dan Mihai Constantinescu; Marin Sandu; Adriana Sandu; Florin Stuparu

doi:10.4028/www.scientific.net/AMM.760.293

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 760Evaluation of Shear Debonding in Double Lap Joints...

Evaluation of Shear Debonding in Double Lap Joints of Sandwich Type

Abstract:

Experimental and numerical investigations were conducted to characterize the joint strength and failure modes in adhesively bonded double lap shear type specimens. As bonded joints are more efficient when designed for pure shear, the used specimens consisted of double lap joints to be used for moderately thick to thick foam core sandwich components. The foam thickness and overlap length are parameters investigated hereby. For such an experimental testing setup, in which peeling is reduced considerably, we combined finite element (FE) simulations and digital image correlation (DIC) for obtaining a more complete insight on the peeling and shear strain distribution in the foam, at the interface with the adherend and in the whole overlap region.

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Periodical:

Applied Mechanics and Materials (Volume 760)

Pages:

293-298

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.760.293

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Online since:

May 2015

Authors:

Dragoş Alexandru Apostol, Dan Mihai Constantinescu, Marin Sandu*, Adriana Sandu, Florin Stuparu

Keywords:

Digital Image Correlation, Double Lap Joints, Finite Element Simulations, Foam Core Sandwich Components, Peeling

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