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Prediction of residual strength after impact of CFRP composite structures

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Abstract

This study predicts the residual strength of composite structures with impact damage by using the characteristic length of the composite with the hole corresponding to the impact damage area. Since C shaped structure differs from that of the specimen, the shape factor was obtained from the concentration factor of the plate specimen and that of the structure by finite element analysis. The factor was applied to the prediction model for the residual strength of the CFRP composite plate specimen. Comparison between the experimental result and prediction result shows that the prediction method using the characteristic length can be applied to the prediction of the residual strength of CFRP composites after impact.

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Authors and Affiliations

  1. School of Mechanical Engineering, Sungkyunkwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon, Gyeonggi-do, 440-746, South Korea

    Jae-Mean Koo & Chang-Sung Seok

  2. Research & Development Division, Hyundai Motor Co., LTD, 772-1, Jangduk-dong, Hwaseong-si, Gyeonggi-do, 445-706, South Korea

    Jung-Hun Choi

Authors
  1. Jae-Mean Koo
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  2. Jung-Hun Choi
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  3. Chang-Sung Seok
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Correspondence to Chang-Sung Seok.

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Koo, JM., Choi, JH. & Seok, CS. Prediction of residual strength after impact of CFRP composite structures. Int. J. Precis. Eng. Manuf. 15, 1323–1329 (2014). https://doi.org/10.1007/s12541-014-0472-0

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  • DOI: https://doi.org/10.1007/s12541-014-0472-0

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