FE Analysis of Stress Concentrations in Composite Plates with Multiple Holes for Zigzag Multi-Fastened Joints

Abstract:

Most fatigue failures in aeronautical structures occur at fastened joints due to stress concentration (SC). Since more and more advanced composites are applied in aircrafts instead of conventional alloys, SC in CFRP composite plates with zigzag-arranged multiple holes has been investigated by finite element method in this paper. It is found that the static SC factor (SCF) of CFRP plates varies with the dimensionless bore and zigzag angle by a greater change than isotropic plates, and that the dynamic response amplitude and frequency of the SCF depend on the dimensionless bore and the dimensionless wave number related with material properties and the exciting frequency.

• Periodical: Materials Science Forum (Volume 770)
• Pages: 17-20
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.770.17
• Online since: October 2013
• Authors: Chong Yang Gao, Jian Zhang Xiao, Ying Lin Ke
• Keywords: Composite Plate, Dynamic Response, Finite Element Analysis (FEA), Multiple Holes, Stress Concentration

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