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Fracture Property on CFRP Specimen with Adhesive Interface according to Laminate Angle at Opening Mode

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Abstract

In this paper, CFRP specimens were processed with the configuration of opening mode to which various fiber laminate angles have been applied. It is possible to observe that the displacements of detachment at the adhesive interface differ from each other in both the experiment and analysis results. In case of the lamination at the angle of 30°, the detachment of adhesive interface occurred at the reaction force of 224 N with the progression of 5.24 m. In case of laminations at the angles of 45° and 60°, the detachment of bonded interface occurred with the reaction forces of 1134 N and 1100 N with the progressions of 4 mm and 4.7 mm, respectively. On the basis of these results, it was possible to discern that the differences in the detachment displacement of adhesive interface and reaction force occur according to the laminate angle in the CFRP with same material properties. Through this study result, it is thought that, unlike the existing woven type CFRP to which the laminate angle was not applied, securing of the basic fiber design data for manufacturing CFRP customized to the user’s environment will be able to make contributions towards the improvement of the strength and stability of the bonded CFRP structures.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Graduate School, Kongju National University, 1223-24, Cheonan-daero, Seobuk-gu, Cheonan-si, Chungcheongnam-do, 31080, Republic of Korea

    Guewan Hwang

  2. Division of Mechanical & Automotive Engineering, Kongju National University, 1223-24, Cheonan-daero, Seobuk-gu, Cheonan-si, Chungcheongnam-do, 31080, Republic of Korea

    Jaeung Cho

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  1. Guewan Hwang
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  2. Jaeung Cho
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Correspondence to Jaeung Cho.

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Hwang, G., Cho, J. Fracture Property on CFRP Specimen with Adhesive Interface according to Laminate Angle at Opening Mode. Int. J. Precis. Eng. Manuf. 19, 251–256 (2018). https://doi.org/10.1007/s12541-018-0029-8

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  • DOI: https://doi.org/10.1007/s12541-018-0029-8

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