알루미나 분말 혼합 비율에 따른 GFRP의 기계적 강도 특성

강대곤; 박재학; Dae-Kon Kang; Jai-Hak Park

Korean Journal of Materials Research, Vol.30, No.1, 22-30, January, 2020

DOI10.3740/MRSK.2020.30.1.22 Export Citation

알루미나 분말 혼합 비율에 따른 GFRP의 기계적 강도 특성

Mechanical Behaviour of GFRP Composites according to Alumina Powder Impregnation Ratios in Resin

강대곤, 박재학^†

충북대학교 안전공학과

Dae-Kon Kang, and Jai-Hak Park^†

Department of Safety Engineering, Chungbuk National University, Cheongju-si 28644, Korea

E-mail:

Small fishing vessels are manufactured using FRP. Various studies have been conducted to increase the strength of the composite material by mixing alumina powder with resin. Tensile tests and flexural strength tests are conducted to examine the effect of alumina powder on the strength of GFRP. In the current study, resin/alumina composites at different alumina contents (i.e., 0, 1, 5, and 10 vol%) have been prepared. The physical and mechanical properties of the prepared composites have been investigated. From the results, the tensile strength of the specimen with alumina powder mixed in at 10% shows the highest value of 155.66 MPa. The tensile strength of the specimen mixed with alumina powder increases with the amount of alumina powder impregnated. In the flexural strength test, the flexural strength of neat resin without alumina powder has a highest value of 257.7 MPa. The flexural modulus of ALMix-5 has a highest value of 12.06 GPa. Barcol hardness of ALMix- 10 has a highest value of 51. We show that alumina powder leads to decreasing cracks on the surface and decreasing length area of delamination.

Keywords:glass fiber reinforced plastics;FRP fishing vessels;alumina powder;delamination;crack

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[1] Kang DK, Park JH, J. Korean Soc. Saf., 33, 15 (2018)

[2] Anand D, Janardhahan MKA, Rajush R, Ramachandran D, J. Chem. Pharm. Sci., 9, 351 (2016)

[3] Ahn SH, Choi HK, Nam KW, J. Ocean Eng. Technol., 24, 146 (2010)

[4] Kang DK, Kim SH, Korean Soc. Mar. Environ. Saf., 23, 68 (2017)

[5] Jung SJ, Sung MK, Kim HS, J. Comput. Struct. Eng. Inst. Korea, 28, 497 (2015)

[6] Lee HR, Song JH, Kim DY, Lim CS, Seo BK, J. Adhes. Interface, 17, 7 (2016)

[7] Lee HK, Chang SR, 20, 154 (2005).

[8] Cifuentes JI, Department of Mechanical Engineering, Kyung Hee University (2011).

[9] Srivastava VK, Verma A, Am. J. Mater. Sci., 5, 84 (2015)

[10] Sarkar P, Modak N, Sahoo P, Int. J. Eng. Technol., 12, 1 (2017)

[11] Pentapati L, Srinivas K, Shankar YR, Swetha V, Krishna MH, J. Dental Med. Sci., 16, 1 (2017)

[12] Sharma A, Sharma AK, Mudgal A, Kumar S, Int. Res. J. Eng. Technol., 4, 2809 (2017)

[13] Vojdani M, Bagheri R, Khaledi AAR, J. Dent. Sci., 17, 241 (2012)

[14] Senthilkumar N, Kalaichelvan K, Elangovan K, Int. J. Mech. Mater. Eng., 7, 216 (2012)

[15] Ministry of Oceans and Fisheries, Structural Standard of Fiber Reinforced Plastic Ship (2016).

[16] Joo MK, Lee YS, Yeon KS, J. Korea Concr. Inst., 19, 540 (2007)

[17] Choi JR, Park SJ, The Polymer Society of Korea, 37, 47 (2013).

[18] Sung JW, Kim NK, Kang MC, J. Korean Soc. Manuf. Process. Eng., 12, 3 (2013)

[19] Anam K, Purnowidodo A, Smaradhana DF, ARPN J. Eng. Appl. Sci., 11, 2747 (2016)

[20] Kwon OH, Tun YS, Ryu YR, The J. of the Korean Soc. for Power Syst. Eng., 18, 167 (2014).

[21] Song HC, Yum JS, The Korean Society of Ocean Engineers, 24, 76 (2010).

[22] Czel G, Jalalvand M, Wilsnom MR, Composites Part A, 91, 436 (2016)

[23] Latief FH, Chafidz A, Junaedi H, Alfozan A, Khan R, Adv. Polymer Tech., 1, 5 (2019)

[24] Yusouf AM, Suffian M, Hashim W, Rafeadah R, J. Tropical Forest Sci., 27, 528 (2015)

[25] American Bureau of Shipping, Rules for Materials and Welding-Aluminum and Fiber Reinforced Plastics, p. 90 (2013).

[26] Kang DK, Strength Characteristics of Fiber Reinforced Plastics according to Joining Method and Scarf Ratio, Chungbuk National Univ., p. 46 (2018).