Improved consistency of bond-line thickness when conducting single lap-shear joint tests

[Display omitted] This article details a method for improving the consistency of bond-line thickness during lap-shear sample preparation. This includes the schematic for a lap-shear sample test rig and consideration for controlled variation of the bond-line thickness for up to ten pairs of samples a...

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Veröffentlicht in:MethodsX 2019-01, Vol.6, p.1974-1978
Hauptverfasser: Flanagan, Joe, Byrne, Lorcan, Mohan, Joseph, Twomey, Barry, Stanton, Kenneth T.
Format: Artikel
Sprache:eng
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Zusammenfassung:[Display omitted] This article details a method for improving the consistency of bond-line thickness during lap-shear sample preparation. This includes the schematic for a lap-shear sample test rig and consideration for controlled variation of the bond-line thickness for up to ten pairs of samples at a time. Concerns regarding the curing of the samples when held on a large heat reservoir are addressed through direct measurement of the bond-rig temperature in combination with the cure chamber temperature. Additionally, the application of a release coating to the bond-rig has been demonstrated to improve ease of sample removal for the bond-rig, minimizing potential damage to the lap-shear sample set before testing. The release coating provides a clean surface for subsequent sets of samples, ensuring an even surface and reducing cleaning and degradation of the machined geometries of the rig. Overall, the proposed bond-rig provides: •Increased bond-line uniformity•Up to ten samples prepared in a batch•Option to apply a release coating to improve usability and minimize cleaning
ISSN:2215-0161
2215-0161
DOI:10.1016/j.mex.2019.09.002