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DIGITAL LIBRARY: CAMX 2023 | ATLANTA, GA | OCTOBER 30-NOVEMBER 2

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Experimental Evaluation on the Longitudinal Compressive Strength of Carbon Nanofibers Z-Threaded CFRP Laminate Manufactured by the Magnetic Compaction Force Assisted Additive Manufacturing Method

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Title: Experimental Evaluation on the Longitudinal Compressive Strength of Carbon Nanofibers Z-Threaded CFRP Laminate Manufactured by the Magnetic Compaction Force Assisted Additive Manufacturing Method

Authors: Mohammad Rakibul Islam, Wyatt Taylor, Ryan Warren, Kuang-Ting Hsiao

DOI: 10.33599/nasampe/c.23.0123

Abstract: The matrix sensitive weaknesses of Carbon Fiber Reinforced Polymer (CFRP) laminates are usually magnified by mainstream additive manufacturing (AM) methods due to the AM-process-induced voids and defects. In this paper, a novel Magnetic Compaction Force Assisted-Additive Manufacturing (MCFA-AM) method is used to print Carbon Nanofibers (CNF) Z-threaded CFRP (i.e., ZT-CFRP) composite laminates. The MCFA-AM method utilizes a magnetic force to simultaneously support, deposit, and compact Continuous Carbon Fiber Reinforced Polymer (C-CFRP) composites in free space and quickly solidifies the CFRP part without any mold; it effectively reduces the voids. Past research proved that the zig-zag threading pattern of the CNF z-threads reinforces the interlaminar and intralaminar regions in the ZT-CFRP laminates manufactured by the traditional Out of Autoclave-Vacuum Bag Only (OOA-VBO) method, and enhances the matrix sensitive mechanical, thermal, and electrical properties. In this study, the longitudinal compressive test (ASTM D695, i.e., SACMA SRM 1R-94) was performed on the MCFA-AM printed ZT-CFRP laminate. The results were compared with unaligned CNF-modified CFRP (UA-CFRP), control CFRP, and no-pressure CFRP samples’ data to investigate the impact of the CNF z-threads and MCFA-AM process on the CFRP’s performance. The 0.5-bar MCFA-AM printed ZT-CFRP showed comparable longitudinal compressive strength with the 1-bar OOA-VBO cured CFRP.

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Conference: CAMX 2023

Publication Date: 2023/10/30

SKU: TP23-0000000123

Pages: 15

Price: $30.00

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