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

doi:10.1016/j.matlet.2018.09.036

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

Ecotechnilin Limited

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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 language	English
Pages (from-to)	233-237
Number of pages	5
Journal	Materials Letters
Volume	233
Early online date	7 Sept 2018
DOIs	https://doi.org/10.1016/j.matlet.2018.09.036
Publication status	Published - 15 Dec 2018

Keywords

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

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10.1016/j.matlet.2018.09.036

Manuscript_Revised_MLAccepted author manuscript (Post-print), 592 KBLicence: CC BY-NC-ND

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

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.",

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author = "Dhakal, {Hom Nath} and Ismail, {Sikiru Oluwarotimi} and Chulin Jiang and Zhongyi Zhang and Tim Sweatman",

year = "2018",

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doi = "10.1016/j.matlet.2018.09.036",

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journal = "Materials Letters",

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AU - Dhakal, Hom Nath

AU - Ismail, Sikiru Oluwarotimi

AU - Jiang, Chulin

AU - Zhang, Zhongyi

AU - Sweatman, Tim

PY - 2018/12/15

Y1 - 2018/12/15

N2 - 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.

AB - 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.

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

Abstract

Keywords

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