10.2514/6.2022-2599">
 

Single Shear Bearing Response in Bolted Hybrid Composite Joints

Document Type

Conference Proceeding

Publication Date

1-3-2022

Abstract

This study sought to characterize the performance and failure characteristics of a hybrid composite material created by the insertion of 301 stainless steel foils in a composite layup composed of IM7/977-3 preimpregnated unidirectional carbon fiber in single shear bolted joints. The hybrid layup was adapted from a conventional composite layup, and the two are compared in both protruding head and countersunk configurations. A partial shank-only hybrid was also investigated. The hybrid composite demonstrated a marked increase in bearing load capacity with an ultimate bearing load improvement of 37% in the protruding head case and 33% in the countersunk case. Methods, results, and analysis of Nondestructive Investigation (NDI) and bearing testing are presented. Micrographs of sectioned progressive failure samples are presented, which correlate to specific phenomena in the given stress-strain curves.

Comments

The full text of this paper is available from AIAA via subscription or purchase through the DOI link below.

Conference Session: Composite Structural Analysis, Design, Testing and Manufacturing VI

Co-author John Brewer was an AFIT PhD candidate at the time of this conference. (AFIT-ENY-DS-20-D-057, December 2020).

Source Publication

AIAA SCITECH 2022 Forum

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