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A comparative analysis on fracture behaviors of 3-point bending specimens made of CFRP and metal

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Abstract

As the composite material of fiber reinforced plastic has the high strength with light weight unlike exiting metal materials, its usage is being gradually increased. In this study, the fracture behaviors are investigated with CFRP and existing metals of aluminum, brass and structural steel by 3-point bending test. As existing metal materials, the maximum reaction forces of 2250 N, 2500 N and 2400 N occurred at aluminum, brass and structural steel respectively. In contrast, the maximum force of about 4000 N was shown at CFRP. This study result can be applied to the durable design of composite structure.

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Authors and Affiliations

  1. Department of Metal Mold Design Engineering, Kongju National University, 1223-24, Cheonan-daero, Seobuk-gu, Cheonan-si, Chungcheongnam-do, South Korea

    Kyekwang Choi

  2. Department of Mechanical Engineering, Graduate School, Kongju National University, 1223-24, Cheonan-daero, Seobuk-gu, Cheonan-si, Chungcheongnam-do, South Korea

    Guewan Hwang

  3. Department of Mechanical & Automotive Engineering, Kongju National University, 1223-24, Cheonan-daero, Seobuk-gu, Cheonan-si, Chungcheongnam-do, South Korea

    Jaeung Cho

Authors
  1. Kyekwang Choi
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  2. Guewan Hwang
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  3. Jaeung Cho
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Correspondence to Jaeung Cho.

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Choi, K., Hwang, G. & Cho, J. A comparative analysis on fracture behaviors of 3-point bending specimens made of CFRP and metal. Int. J. Precis. Eng. Manuf. 18, 197–202 (2017). https://doi.org/10.1007/s12541-017-0025-4

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  • DOI: https://doi.org/10.1007/s12541-017-0025-4

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