Three-Point Bending Tests on Composite Sandwich Structure with Balsa Wood Core and Fiberglass Faces for Glider Design.

Autor: Rahmah, Annisa, Zulkarnain, Muhammad Fikri, Mulyanto, Taufiq, Hadi, Bambang Kismono, Kusni, Muhammad
Předmět:
Zdroj: AIP Conference Proceedings; 2020, Vol. 2226 Issue 1, p040008-1-040008-13, 13p, 1 Color Photograph, 30 Diagrams, 5 Charts, 5 Graphs
Abstrakt: The purpose of this study is to analyze bending strength of composite structure that was made of balsa wood as its core and fiberglass woven roving WR200 as its face. Balsa wood was chosen as the core because of its high strength-to-weight ratio. Steps that were taken for this research are as follows. First, literature review by reading journals and books related with the research topic. Second, creating the specimens and conducting quality control of each of them. Each specimen underwent three-point bending test and the data were collected. The data that had been collected from the test were then analyzed. Lastly, the conclusion and recommendation were generated based on the findings from the data. Both specimens were tested on the same machine, i. e. Tensilon three-point bending, which has the maximum strength of 1000 kgF. The two specimens which were tested by three-point bending test in this research are sandwich composite with vertically aligned balsa wood as its core (core perpendicular to the length of specimen), and sandwich composite with horizontally aligned balsa wood as its core (core aligned with the length of specimen). Sandwich composite with horizontally aligned core has the maximum load of 697.2 N, while the value of maximum core shear strength and face bending strength were 0.768 MPa and 37.171 MPa. Sandwich composite with vertically aligned core had the maximum load of 1098.5 N, while the value of maximum core shear strength and face bending strength were 1.208 MPa and 67.113 MPa. According to the test result of the two kinds of specimens, sandwich composites with vertically aligned core are stronger than horizontally aligned core ones. This research is limited to fiberglass woven roving WR200 with the degree of orientation in the value of ±45° as the face. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index