Tensile Strength of Coconut Coir Fiber Composite as an Alternative Material to Replace Fiberglass in Hard Socket

Keywords: fiberglass, Coconut fiber, socket prosthesis


Physically disabled is someone who has a movement system disorder or has physical abnormalities such as amputation, withering, stiffness, and others. The self-confidence of someone who has an amputee can be improved by having a prosthesis made, because it can replace the anatomical and functional functions of the body. The socket on the prosthesis is the most important component, because the use of the socket on the prosthesis is directly related to the patient's stump. One of the materials for making socket prosthesis is fiberglass. However, the use of fiberglass has a negative effect, namely it produces gas and dust emissions that can irritate stumps, is not a local product, and is difficult to recycle. Alternative fiber materials are using fibers from nature, coco fiber is an option as an alternative to fiberglass. The tensile strength test is the most basic test. The tensile strength test was carried out to determine the stress, strain, and elastic modulus of the fibrous polymer composites. The purpose of this study was to analyze and compare the tensile strength between fiberglass and coconut coir fiber, so as to find out which fiber material is suitable as an alternative to fiberglass in the manufacture of socket prosthesis. Using experimental quantitative methods. The composite material uses coconut coir fiber which was previously treated with 5% NaOH for 1 hour and then dried for 2-3 days. In the fabrication process using the vacuum bag method. Standard specimen refers to ASTM D3039/3039M. Tensile testing showed that the average tensile strength value of the coco fiber composite was 16.2 MPa and the average tensile strength value of the fiberglass composite was 30.2 MPa. This means that the value of the tensile strength of coco fiber is still below fiberglass and cannot be used as a substitute for fiberglass. However, coconut coir fiber can be used as an alternative to fiberglass, judging from the average maximum force that the coco fiber composite can withstand, which is 2630 N or equivalent to a load of 263 kg, this value is sufficient for the average adult weight in Indonesia with an average weight of 60 kg body


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S. Federici, M. Bracalenti, F. Meloni, and J. V. Luciano, “World Health Organization disability assessment schedule 2.0: An international systematic review,” https://doi.org/10.1080/09638288.2016.1223177, vol. 39, no. 23, pp. 2347–2380, Nov. 2016, doi: 10.1080/09638288.2016.1223177.

J. J. Martin, “Benefits and barriers to physical activity for individuals with disabilities: a social-relational model of disability perspective,” https://doi.org/10.3109/09638288.2013.802377, vol. 35, no. 24, pp. 2030–2037, 2013, doi: 10.3109/09638288.2013.802377.

I. Brittain, “The Paralympic Games as a force for peaceful coexistence,” https://doi.org/10.1080/17430437.2012.708287, vol. 15, no. 6, pp. 855–868, Aug. 2012, doi: 10.1080/17430437.2012.708287.

L. A. Holzer, F. Sevelda, G. Fraberger, O. Bluder, W. Kickinger, and G. Holzer, “Body Image and Self-Esteem in Lower-Limb Amputees,” PLoS One, vol. 9, no. 3, p. e92943, Mar. 2014, doi: 10.1371/JOURNAL.PONE.0092943.

J. B. Webster, K. N. Hakimi, R. M. Williams, A. P. Turner, D. C. Norvell, and J. M. Czerniecki, “Prosthetic fitting, use, and satisfaction following lower-limb amputation: A prospective study,” J Rehabil Res Dev, vol. 49, no. 10, p. 1453, 2012, Accessed: May 07, 2023. [Online]. Available: /pmc/articles/PMC7590920/

M. R. Tucker et al., “Control strategies for active lower extremity prosthetics and orthotics: A review,” J Neuroeng Rehabil, vol. 12, no. 1, pp. 1–30, Jan. 2015, doi: 10.1186/1743-0003-12-1/FIGURES/2.

B. Dyer and H. Woolley, “Development of a high-performance transtibial cycling-specific prosthesis for the London 2012 Paralympic Games,” Prosthet Orthot Int, vol. 41, no. 5, pp. 498–502, Oct. 2017, doi: 10.1177/0309364616682386.

E. Roberts et al., “A qualitative study examining prosthesis use in everyday life in individuals with lower limb amputations,” Prosthet Orthot Int, vol. 45, no. 4, pp. 296–303, Aug. 2021, doi: 10.1097/PXR.0000000000000021.

N. Rachmat and B. Kuncoro, “Effect Of Use Of Flexible Transfemoral Prosthesis On Dynamic Balance Of Transfemoral Amputee,” Jurnal Keterapian Fisik, vol. 7, no. 2, pp. 134–142, Dec. 2022, doi: 10.37341/JKF.V0I0.382.

A. I. Campbell, S. Sexton, C. J. Schaschke, H. Kinsman, B. McLaughlin, and M. Boyle, “Prosthetic limb sockets from plant-based composite materials,” Prosthet Orthot Int, vol. 36, no. 2, pp. 181–189, Jun. 2012, doi: 10.1177/0309364611434568.

R. C. Me, R. Ibrahim, and P. M. Tahir, “Natural Based Biocomposite Material For Prosthetic Socket Fabrication,” Journal Alam Cipta, vol. 5, no. 1, 2012.

A. I. Campbell, S. Sexton, C. J. Schaschke, H. Kinsman, B. McLaughlin, and M. Boyle, “Prosthetic limb sockets from plant-based composite materials,” Prosthet Orthot Int, vol. 36, no. 2, pp. 181–189, Jun. 2012, doi: 10.1177/0309364611434568.

T. P. Sathishkumar, J. Naveen, P. Navaneethakrishnan, S. Satheeshkumar, and N. Rajini, “Characterization of sisal/cotton fibre woven mat reinforced polymer hybrid composites,” Journal of Industrial Textiles, vol. 47, no. 4, pp. 429–452, Nov. 2017, doi: 10.1177/1528083716648764.

D. Verma, D. Verma, P. C. Gope, A. Shandilya, A. Gupta, and M. K. Maheshwari, “Coir Fiber Reinforcement and Application in Polymer Composites: A Review Composite Material View project fatigue life View project Coir Fibre Reinforcement and Application in Polymer Composites: A Review,” J. Mater. Environ. Sci, vol. 4, no. 2, pp. 263–276, 2013, [Online]. Available: https://www.researchgate.net/publication/236662055

S. Kumar, M. S. Shamprasad, Y. S. Varadarajan, and M. A. Sangamesha, “Coconut coir fiber reinforced polypropylene composites: Investigation on fracture toughness and mechanical properties,” Mater Today Proc, vol. 46, pp. 2471–2476, Jan. 2021, doi: 10.1016/J.MATPR.2021.01.402.

T. A. Cevanti et al., “Cellulose Fiber from Coconut Coir for Development of Dental Composite Filler,” Journal of International Dental and Medical Research, vol. 14, no. 4, 2021, Accessed: Mar. 20, 2023. [Online]. Available: http://www.jidmr.com/journal/wp-content/uploads/2021/12/13-D21_1651_Dian_Agustin_Indonesia-3-Adioro.-Cellulose.pdf

W. D. Calister and D. G. Rethwisch, Materials Science and Engineering, 10th ed. Hachette Livre - Département Pratique, 2018.

M. Bombek, U. Vesenjak, M. Pisek, G. Vidmar, S. Knez, and S. Medved, “Mechanical Testing of Laminated Composite Materials For Prosthetic Sockets,” Materiali in Tehnologije, vol. 55, no. 5, pp. 655–661, 2021, doi: 10.17222/MIT.2021.232.

G. Gundara, M. Budi, and N. Rahman, “Sifat Tarik, Bending dan Impak Komposit Serat Sabut Kelapa-Polyester dengan Variasi Fraksi Volume,” JMPM (Jurnal Material dan Proses Manufaktur), vol. 3, no. 1, pp. 10–19, Jun. 2019, doi: 10.18196/JMPM.3132.

D. Magalhães de Oliveira, K. Cristina Coelho de Carvalho Benini, F. Maciel Monticeli, and M. Arsyad, “Sodium Hydroxide and Potassium Permanganate Treatment on Mechanical Properties of Coconut Fibers,” IOP Conf Ser Mater Sci Eng, vol. 619, no. 1, p. 012011, Oct. 2019, doi: 10.1088/1757-899X/619/1/012011.

N. Faheed, J. Oleiwi, and Q. Hamad, “Effect of Different Fiber Reinforcements on Some Properties of Prosthetic Socket,” Engineering and Technology Journal, vol. 39, no. 11, pp. 1715–1726, Nov. 2021, doi: 10.30684/etj.v39i11.2267.

M. F. Syuaib, “Anthropometric study of farm workers on Java Island, Indonesia, and its implications for the design of farm tools and equipment,” Appl Ergon, vol. 51, pp. 222–235, Nov. 2015, doi: 10.1016/J.APERGO.2015.05.007.

W. Ahmad et al., “Effect of Coconut Fiber Length and Content on Properties of High Strength Concrete,” Materials 2020, Vol. 13, Page 1075, vol. 13, no. 5, p. 1075, Feb. 2020, doi: 10.3390/MA13051075.

H. Mamtaz, M. H. Fouladi, M. Al-Atabi, and S. N. Namasivayam, “Acoustic absorption of natural fiber composites,” Journal of Engineering (United Kingdom), vol. 2016, 2016, doi: 10.1155/2016/5836107.

J. Y. Jang, T. K. Jeong, H. J. Oh, J. R. Youn, and Y. S. Song, “Thermal stability and flammability of coconut fiber reinforced poly(lactic acid) composites,” Compos B Eng, vol. 43, no. 5, pp. 2434–2438, Jul. 2012, doi: 10.1016/J.COMPOSITESB.2011.11.003.

How to Cite
N. Rachmat, A. F. Anggriani, A. Hisyam, and D. Suprayogi, “Tensile Strength of Coconut Coir Fiber Composite as an Alternative Material to Replace Fiberglass in Hard Socket ”, j.electron.electromedical.eng.med.inform, vol. 5, no. 2, pp. 99-107, Apr. 2023.
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