Abstract
In this paper, the stress on axially loaded metal sheets with elliptical holes reinforced by a double-sided composite patch was analysed. The metal sheets with elliptical holes were subjected to axial loading, although no load was applied along the edges of the holes. The central elliptical holes on the metal plates had different diameters. The overlap distance of composite patches, which were adhesively bonded on each side, was of varied lengths. Elasto-plastic stress analyses were examined by means of the finite element method (FEM). The experimental results were compared with numerical results and a convergence rate of 92 % was achieved.
Kurzfassung
In der diesem Beitrag zugrunde liegenden Studie wurden die Spannungen in einem axial belasteten Metallblech mit einem elliptischen Loch analysiert, das mit einem doppelseitigen Kompositflicken verstärkt wurde. Hierzu wurden die Metallbleche axial belastet, ohne eine Last entlang der Lochkanten aufzubringen. Die zentralen Löcher in den Metallblechen hatten verschiedene Durchmesser. Die Überlapplängen der Kompositflicken, die auf jeder Seite aufgeklebt wurden, waren ebenfalls unterschiedlich. Die elastisch-plastischen Spannungsanalysen wurden mittels der Finite-Elemente-Methode (FEM) durchgeführt. Die experimentellen Ergebnisse wurden mit den numerischen Berechnungen verglichen, und es wurde eine Übereinstimmung von 92 % festgestellt.
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