Influence of barely visible impact damage on post-impact residual flexural properties of hybrid Fibri Rock – Aero Eco-composites

Hom Nath Dhakal*, Sikiru Oluwarotimi Ismail, Chulin Jiang, Zhongyi Zhang, Tim Sweatman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

This study experimentally investigates the effects of barely visible impact damage (BVID) under low-velocity impact and its influence on post-impact residual flexural properties of hybrid flax-basalt Eco-composites Fibri Rock –Aero of 2 and 4 mm in thickness using drop weight impact and 3-point bending tests. The damage-induced was characterised by X-ray micro computed tomography (X-ray µCT) technique. The results show that the post-impact residual flexural strength (PI-RFS) and modulus of the composites are dependent on their thickness and incident impact energies employed. A significant damage was evident for both types of specimens caused by microscopic inter-laminar delamination and cracks induced especially at the highest incident energy with a noticeable reduction on PI-RFS and modulus.

Original languageEnglish
Pages (from-to)233-237
Number of pages5
JournalMaterials Letters
Volume233
Early online date7 Sep 2018
DOIs
Publication statusPublished - 15 Dec 2018

Keywords

  • BVID
  • Delamination
  • Hybrid flax-basalt eco-composites Fibri Rock –Aero
  • Post-impact residual flexural strength

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