A novel approach for the investigation of low energy ice impacts

Alessia Prato*, Marco Longana

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

3 Citations (Scopus)
128 Downloads (Pure)

Abstract

Soft body impacts are one of the main sources of damage for aircraft during flight due to the high relative velocities. However, a hailstone can also hit a structure at low velocity (e.g. during parking, taxi and terminal flight phases) causing barely visible damages. In this research work, a new approach is proposed for the investigation of low energy ice impacts. A drop tower apparatus was modified to accommodate specifically developed ice impactors. High-speed Digital Image Correlation was employed to measure the targets out-of-plane deformations and in-plane strain fields. Different ice impactors geometries, target materials and energy levels were considered. From results, it has been demonstrated that this methodology is able to capture the effect of ice impacting at low speed on targets.

Original languageEnglish
Pages (from-to)12-19
Number of pages8
JournalInternational Journal of Impact Engineering
Volume121
Early online date19 Jun 2018
DOIs
Publication statusPublished - 1 Nov 2018

Keywords

  • Low energy impact
  • Ice impact
  • Digital image correlation
  • Drop weight test

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