A new test apparatus to measure the adhesive shear strength of impact ice on titanium 6Al-4V alloy

Research output: Contribution to journalArticle

Authors

Colleges, School and Institutes

External organisations

  • Cranfield University

Abstract

We present a new shear test which may be used in an icing environment. Ice is formed on a jig containing the sample material and this is then loaded by a forcing mechanism to effect the adhesive test. It allows impact (atmospheric) ice adhesive shear tests to be undertaken without disturbance or delay, in icing conditions. Finite element analysis is used in order to evaluate the controlling shear stresses in the most highly stressed zone of the ice/substrate interface and some sample experimental data is given for the adhesion of some impact ices to Ti-6Al-4V alloy with different surface finishes. The adhesion forces reported, represent peak values rather than spatially averaged stress values. Therefore values of adhesive shear strength obtained are higher than previous authors (in the range from 2 to 14 MPa instead of 0.05 to 0.5 MPa).

Details

Original languageEnglish
Pages (from-to)212-222
Number of pages11
JournalEngineering Fracture Mechanics
Volume214
Early online date18 Feb 2019
Publication statusPublished - 1 Jun 2019

Keywords

  • Atmospheric ice, Finite element analysis, Fracture mechanics, Impact ice, Shear strength