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.
Source Publication
AIAA SCITECH 2022 Forum
Recommended Citation
Brewer, J. S., Palazotto, A. N., Holycross, C., & Gran, M. (2022). Single Shear Bearing Response in Bolted Hybrid Composite Joints. AIAA SCITECH 2022 Forum, AIAA #2022-2599. https://doi.org/10.2514/6.2022-2599
Comments
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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).