Surface Roughness and Fiber Angular Orientation Analysis Toward Laminated Composite Crack Propagation

Hilmi Iman Firmansyah, Bayu Pranoto, Chandra Gunawan, Hangga Wicaksono, Muhammad Fakhruddin

Abstract

In this study, fatigue testing of fiber metal composites was carried out to determine the rate of crack propagation so that the age of the fiber metal composite specimen was known. The independent variable in this research is the angular orientation of the carbon fiber and the surface roughness of the aluminium with the dependent variable response is the bridge crack rate. The manufacture of fiber metal laminates specimens uses the Vacuum Assist Resin Infusion (VARI) method, which uses a vacuum pump as a means to flow the resin from the reservoir to the mold. Fatigue testing is performed using the stress amplitude method. That is, the value of the load when the tensile test is one third of the tensile strength. After the fatigue test was carried out, the results were obtained on specimens with an angular orientation of 0/90° fibers, the crack propagation rate slowed down with a cycle value of 90,000 in specimens with a surface roughness value of 2.128 µm then decreased cycles on specimens with a value of 2.887 µm, namely 11,000 cycles.

Full Text:

PDF

References

A. W. Cramb, A Shorts History of Metals, Pennsylvania: Carnegi Mellon University, 1996.

2. R. F. Gibson, Principle of Composite of Mechanical Engineering, 4th ed. Florida: CRC Press, 2016.

3. P. Bhatt and A. Goe, "Carbon Fibres: Production, Properties and Potential Use". Mater. Sci. Res., vol. 14, no. 1, pp. 52-57, 2017.

4. M. R. Jones, Mechanics of Composite Material, Tokyo: McGraw Hill Kogakusha, 1975.

5. M. D. Smith and P. E. Mack, “Advanced in Vacuum Infusion Processing Using Spacer Fabrics as Engineered Reinforcement Interlaminar Infusion Media,” in International SAMPE Symposium and Exhibition, California, United States, 2003.

6. W. J. Cantwell and J. Morton, “The Impact Resistance of Composite Material,” J. Compos. Elsevier, vol. 22, no. 5, pp. 347-362, 1991.

7. H. I. Firmansyah, A. Purnowidodo, and S. S. Arief, “Pengaruh Mechanical Bonding Pada Serat Karbon dan Aluminium Terhadap Kekuatan Tarik Fiber Metal Laminates.” Jurnal Rekayasa Mesin, vol. 9, no. 2, pp. 127-134, 2018. (in Indonesian).

8. ASTM, Standard Test Method for Tensile Properties of Plastics, Pennsylvania: ASTM International, 2003.

9. ASTM, Standard Test Method for Tension-Tension Fatigue of Polymer Matrix Composite Materials, Pennsylvania: ASTM International, 2012.

10. A. Purnowidodo, S. S. Arief, and F. H. Iman, “Effect Surface Roughness on Fatigue Crack Propagation Behaviour of Fibre Metal Laminates (FMLs),” Int. J. Automot. Mech. Eng., vol. 16, no. 2, pp. 6588-6604, 2019.

DOI: https://doi.org/10.20961/mekanika.v20i1.48188

Refbacks

  • There are currently no refbacks.