Next Article in Journal
Noncontact Surface Roughness Estimation Using 2D Complex Wavelet Enhanced ResNet for Intelligent Evaluation of Milled Metal Surface Quality
Next Article in Special Issue
Depth Retrieval Procedures in Pulsed Thermography: Remarks in Time and Frequency Domain Analyses
Previous Article in Journal
State-of-the-Art Mobile Intelligence: Enabling Robots to Move Like Humans by Estimating Mobility with Artificial Intelligence
Previous Article in Special Issue
From Thermal Inspection to Updating a Numerical Model of a Race Bicycle: Comparison with Structural Dynamics Approach
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle
Appl. Sci. 2018, 8(3), 380;

Enhancing the Accuracy of Advanced High Temperature Mechanical Testing through Thermography

Institute of Structural Materials, Swansea University, Singleton Park, Sketty, Swansea SA2 8PP, UK
Received: 6 November 2017 / Revised: 21 February 2018 / Accepted: 24 February 2018 / Published: 6 March 2018
Full-Text   |   PDF [6522 KB, uploaded 6 March 2018]   |  


This paper describes the advantages and enhanced accuracy thermography provides to high temperature mechanical testing. This technique is not only used to monitor, but also to control test specimen temperatures where the infra-red technique enables accurate non-invasive control of rapid thermal cycling for non-metallic materials. Isothermal and dynamic waveforms are employed over a 200–800 °C temperature range to pre-oxidised and coated specimens to assess the capability of the technique. This application shows thermography to be accurate to within ±2 °C of thermocouples, a standardised measurement technique. This work demonstrates the superior visibility of test temperatures previously unobtainable by conventional thermocouples or even more modern pyrometers that thermography can deliver. As a result, the speed and accuracy of thermal profiling, thermal gradient measurements and cold/hot spot identification using the technique has increased significantly to the point where temperature can now be controlled by averaging over a specified area. The increased visibility of specimen temperatures has revealed additional unknown effects such as thermocouple shadowing, preferential crack tip heating within an induction coil, and, fundamental response time of individual measurement techniques which are investigated further. View Full-Text
Keywords: thermography; high temperature; dynamic temperature; thermocouple; pyrometer thermography; high temperature; dynamic temperature; thermocouple; pyrometer

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Jones, J. Enhancing the Accuracy of Advanced High Temperature Mechanical Testing through Thermography. Appl. Sci. 2018, 8, 380.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Appl. Sci. EISSN 2076-3417 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top