Effect of Hydraulic Oil Aging at Different Temperatures on the Mechanical Behavior of Nomex and Aluminum Honeycomb Sandwich Composites

İbrahim Demirci

doi:10.31127/tuje.1867009

Effect of Hydraulic Oil Aging at Different Temperatures on the Mechanical Behavior of Nomex and Aluminum Honeycomb Sandwich Composites

Abstract

The mechanical behavior of carbon fiber–faced sandwich composites with Nomex and aluminum honeycomb cores was investigated after exposure to hydraulic oil at different temperatures. The sandwich composites were fabricated using a hand lay-up process followed by hot pressing. The specimens were immersed in ISO VG 37 hydraulic oil at 50, 70, and 90 °C for 8 h prior to mechanical testing. The specimens were subsequently subjected to three-point bending and edgewise compression tests. Although the Nomex core specimens exhibited a certain strength reduction at 50 °C, their performance was not significantly affected at higher temperatures of 70 °C and 90 °C. On the other hand, aluminum core carbon fiber sandwich composites were influenced by aging at all temperatures, with more severe degradation observed at 70 °C and 90 °C, where delamination occurred between the aluminum core and the carbon fiber face sheets. In conclusion, Nomex/carbon sandwich composites demonstrated higher resistance to short-term hydraulic oil and temperature exposure, whereas Al/carbon sandwich composites lost their structural integrity more rapidly at elevated temperatures.

Keywords

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Details

Primary Language

English

Subjects

Polymer Science and Technologies

Journal Section

Research Article

Authors

İbrahim Demirci ^*
0000-0002-6808-8550
Türkiye

Publication Date

July 6, 2026

Submission Date

January 19, 2026

Acceptance Date

March 1, 2026

Published in Issue

Year 2026 Volume: 10 Number: 3

DOI

https://doi.org/10.31127/tuje.1867009

IZ

https://izlik.org/JA64YA54RP

Cite

RIS / Bibtex

APA

Demirci, İ. (2026). Effect of Hydraulic Oil Aging at Different Temperatures on the Mechanical Behavior of Nomex and Aluminum Honeycomb Sandwich Composites. Turkish Journal of Engineering, 10(3), 855-863. https://doi.org/10.31127/tuje.1867009

AMA

1.Demirci İ. Effect of Hydraulic Oil Aging at Different Temperatures on the Mechanical Behavior of Nomex and Aluminum Honeycomb Sandwich Composites. TUJE. 2026;10(3):855-863. doi:10.31127/tuje.1867009

Chicago

Demirci, İbrahim. 2026. “Effect of Hydraulic Oil Aging at Different Temperatures on the Mechanical Behavior of Nomex and Aluminum Honeycomb Sandwich Composites”. Turkish Journal of Engineering 10 (3): 855-63. https://doi.org/10.31127/tuje.1867009.

EndNote

Demirci İ (July 1, 2026) Effect of Hydraulic Oil Aging at Different Temperatures on the Mechanical Behavior of Nomex and Aluminum Honeycomb Sandwich Composites. Turkish Journal of Engineering 10 3 855–863.

IEEE

[1]İ. Demirci, “Effect of Hydraulic Oil Aging at Different Temperatures on the Mechanical Behavior of Nomex and Aluminum Honeycomb Sandwich Composites”, TUJE, vol. 10, no. 3, pp. 855–863, July 2026, doi: 10.31127/tuje.1867009.

ISNAD

Demirci, İbrahim. “Effect of Hydraulic Oil Aging at Different Temperatures on the Mechanical Behavior of Nomex and Aluminum Honeycomb Sandwich Composites”. Turkish Journal of Engineering 10/3 (July 1, 2026): 855-863. https://doi.org/10.31127/tuje.1867009.

JAMA

1.Demirci İ. Effect of Hydraulic Oil Aging at Different Temperatures on the Mechanical Behavior of Nomex and Aluminum Honeycomb Sandwich Composites. TUJE. 2026;10:855–863.

MLA

Demirci, İbrahim. “Effect of Hydraulic Oil Aging at Different Temperatures on the Mechanical Behavior of Nomex and Aluminum Honeycomb Sandwich Composites”. Turkish Journal of Engineering, vol. 10, no. 3, July 2026, pp. 855-63, doi:10.31127/tuje.1867009.

Vancouver

1.İbrahim Demirci. Effect of Hydraulic Oil Aging at Different Temperatures on the Mechanical Behavior of Nomex and Aluminum Honeycomb Sandwich Composites. TUJE. 2026 Jul. 1;10(3):855-63. doi:10.31127/tuje.1867009