A new test apparatus to measure the adhesive shear strength of impact ice on titanium 6Al-4V alloy
Research output: Contribution to journal › Article › peer-review
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 language | English |
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Pages (from-to) | 212-222 |
Number of pages | 11 |
Journal | Engineering Fracture Mechanics |
Volume | 214 |
Early online date | 18 Feb 2019 |
Publication status | Published - 1 Jun 2019 |
Keywords
- Atmospheric ice, Finite element analysis, Fracture mechanics, Impact ice, Shear strength