SYMPOSIA PAPER Published: 24 August 2020

A Technique for High-Temperature Creep Displacement Measurement


A laser-based interferometric technique was used to measure in-plane displacements on center-cracked IN100 specimens at 732°C. The displacement was measured between two indentations 100 μm apart (one on each side of an existing fatigue crack) under short-term creep loading. The very simple experimental setup is described, and some typical results are presented.

Author Information

Sharpe, W., N.
Mechanical Engineering Department, Louisiana State University, Baton Rouge, La., US
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Developed by Committee: E08
Pages: 157–166
DOI: 10.1520/STP791B1983010
ISBN-EB: 978-0-8031-7720-8
ISBN-13: 978-0-8031-0729-8