Effect of Interference-Fit on Fatigue Life for Composite Lap Joints

Abstract:

The aim of this study is to examine the effect of the clearance and interference-fit on the fatigue life of composite lap joints in double shear, 3D finite element simulations have been performed to obtain stress (or strain) distributions around the hole due to interference fit using FEM package, Non-linear contact analyses are performed to examine the effects of the clearance and interference for titanium and composite lap joint. Fatigue tests were conducted for the titanium and composite lap joints with clearance fit and interference fit with 0.5, 1, and 1.5% nominal interference fit levels at different cyclic loads. The results shows that interference fit increases fatigue life compared to clearance fit specimens, the titanium and composite lap joint with 1% interference fit level has the better fatigue life.

• Periodical: Advanced Materials Research (Volume 939)
• Pages: 39-46
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.939.39
• Online since: May 2014
• Authors: Hong Qian Xue*, Qian Tao, Emin Bayraktar
• Keywords: Composite Material, Fatigue Test, Interference-Fit Level, Special Riveted Joint

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