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Abstract

This article presents experimental and numerical results regarding the bolt bearing strength of titanium—graphite (TiGr) fiber metal laminate joints as a function of joint geometry, in particular the edge—distance ratio. The measured strength values are used to examine the influence of the laminate constituent materials and optimize the joint geometry. Additionally, a finite element model of the bolt bearing test procedure is introduced; incorporating a three-dimensional progressive failure constitutive model for the fiber-reinforced composite layers. Model validation is accomplished through comparison with experimentally obtained TiGr joint bearing results in terms of loading history, measured strength, and deformed sample geometry.

Keywords

fiber metal laminates hybrid titanium composite laminates bolted joints finite element method user material subroutine

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Three-dimensional progressive failure analysis of bolted titanium-graphite fiber metal laminate joints

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