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Tensile After Impact Test of Scarf-Repaired Composite Laminates

  • Research Article - Mechanical Engineering
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Arabian Journal for Science and Engineering Aims and scope Submit manuscript

Abstract

This paper presents the influence of impact location at the bond line of internal repaired composite. Regarding this, the composite laminates were manufactured via vacuum assist resin infusion method and scarfed adhesive bonded repair technique was used for the laminates. Four different impact points were selected on the repaired laminates to apply the impact load. Low-velocity impact test was conducted via drop weight impact on the repaired samples with two different energy levels (15 and 25 J), and damage analysis was carried out through visual inspection of the each impacted laminates. Furthermore, the impact response of the repaired laminates was compared with virgin impacted composites and inspected based on impact parameters such as maximum force, impact time duration, damaged area, damage depth, and energy absorption. In addition, the residual strength of the impacted samples was investigated using tensile test. The results disclosed that the repaired composite showed susceptibility to impact that varied with impact locations. From the tensile test, it was evident that scarf repair was capable of restoring 78.16% of the strength. Tensile test discovered that the repaired sample impacted outside of the repaired zone which demonstrated the least damage and proved more efficient to carry more tensile load, whereas the impact location at the scarf edge depicted larger damage and bear the least tensile load. A correlation was established among tensile after impact and the energy absorption of the laminates. The laminate obtained more absorbed energy during low-velocity impact and sustained the least tensile load while tensile testing.

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Acknowledgements

The authors are extremely grateful to Professor Jihui Wang for his inputs in this research. The reported research work was part of the Fundamental Research Funds for the Central Universities supported by the Wuhan University of Technology.

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Authors and Affiliations

  1. School of Material Science and Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, Hubei, People’s Republic of China

    Punita Kumari & Jihui Wang

  2. School of Automotive Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, Hubei, People’s Republic of China

    Saahil

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  1. Punita Kumari
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Correspondence to Punita Kumari or Jihui Wang.

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Kumari, P., Wang, J. & Saahil Tensile After Impact Test of Scarf-Repaired Composite Laminates. Arab J Sci Eng 44, 7677–7697 (2019). https://doi.org/10.1007/s13369-019-03857-z

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