DOI : https://doi.org/10.18517/ijaseit.7.6.2781

Experimental Verification of Interfacial Strength Effect on the Mechanical Properties of Carbon Fiber-Epoxy Composite

Bentang Arief Budiman (1), Firman Bagja Juangsa (2), Muhammad Aziz (3), Ignatius Pulung Nurprasetio (4), Ilman Nuran Zaini (5)
(1) Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Ganesha street no. 10, Bandung 40132, Indonesia
(2) Department of Mechanical Sciences and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8550, Japan
(3) Institute of Innovative Research, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo 152-8550, Japan
(4)
(5) Energy and Furnace Technology Division, KTH Royal Institute of Technology, Brinellvägen 8, 114 28 Stockholm, Sweden
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How to cite (IJASEIT) :
Budiman, Bentang Arief, et al. “Experimental Verification of Interfacial Strength Effect on the Mechanical Properties of Carbon Fiber-Epoxy Composite”. International Journal on Advanced Science, Engineering and Information Technology, vol. 7, no. 6, Dec. 2017, pp. 2226-31, doi:10.18517/ijaseit.7.6.2781.
Citation Format :
The effects of carbon fiber-epoxy interfacial strength on the mechanical properties of the corresponding fiber-matrix composites are experimentally demonstrated in this work. Two composites containing different carbon fibers were tested: as-received fibers and fibers soaked in acetone to remove adhesive on their surfaces. The fiber surfaces were first characterized by scanning electron microscopy and time-of-flight secondary-ion mass spectrometry to verify removal of the adhesive. Further, single-fiber fragmentation tests were conducted to evaluate the fiber strength and the interfacial strength. The mechanical properties of the composites were evaluated via tensile testing under longitudinal and transverse loadings. The results show that interfacial strength does not decrease the mechanical properties of the composites under longitudinal loading. In contrast, under transverse loading, the interfacial strength significantly decreases the mechanical properties, specifically the ultimate tensile strength and toughness of the composites.

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