The reduction of stress concentrations in adhesive joints with the use of curved aluminum adherends

Publikationen: Beitrag in FachzeitschriftArtikelForschung(peer-reviewed)

Autoren

Externe Organisationseinheiten

  • Universität Porto

Abstract

The study proposes a novel concept of a curved single lap joint (SLJ) with non- uniform adhesive
thickness to reduce stress concentrations near overlap edges. Experimental and numerical meth-
odologies investigate this joint using two adhesives: Araldite 2015-1 and AV138. Numerical models
in ABAQUS predict cohesive failure in the adhesive layer. The curved configuration doesn’t signifi-
cantly enhance strength in SLJ using ductile adhesives, but for brittle ones, strength increased by
131% due to sensitivity to peak stresses. In conclusion, the curved SLJ effectively reduces stress
concentrations and the effectiveness of this concept is linked to the ductility of the adhesive used.

Details

OriginalspracheEnglisch
Seitenumfang12
FachzeitschriftMechanics of advanced materials and structures
Jahrgang31.2024
Ausgabenummer28
DOIs
StatusVeröffentlicht - 12 Jan. 2024