Publikation: Spatially Resolved Measurement of the Stress Tensor in Thin Membranes Using Bending Waves
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2015
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Physical Review Applied. 2015, 3(4), 044002. eISSN 2331-7019. Available under: doi: 10.1103/PhysRevApplied.3.044002
Zusammenfassung
The mode shape of bending waves in thin silicon and silicon-carbide membranes is measured as a function of space and time, using a phase-shift interferometer with stroboscopic light. The mode shapes hold information about all the relevant mechanical parameters of the samples, including the spatial distribution of static prestress. We present a simple algorithm to obtain a map of the lateral tensor components of the prestress, with a spatial resolution much better than the wavelength of the bending waves. The method is not limited to measuring the stress of bending waves. It is applicable in almost any situation, where the fields determining the state of the system can be measured as a function of space and time.
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WAITZ, Reimar, Carolin LUTZ, Stephan NÖSSNER, Michael HERTKORN, Elke SCHEER, 2015. Spatially Resolved Measurement of the Stress Tensor in Thin Membranes Using Bending Waves. In: Physical Review Applied. 2015, 3(4), 044002. eISSN 2331-7019. Available under: doi: 10.1103/PhysRevApplied.3.044002BibTex
@article{Waitz2015Spati-31448,
year={2015},
doi={10.1103/PhysRevApplied.3.044002},
title={Spatially Resolved Measurement of the Stress Tensor in Thin Membranes Using Bending Waves},
number={4},
volume={3},
journal={Physical Review Applied},
author={Waitz, Reimar and Lutz, Carolin and Nößner, Stephan and Hertkorn, Michael and Scheer, Elke},
note={Article Number: 044002}
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<dcterms:abstract xml:lang="eng">The mode shape of bending waves in thin silicon and silicon-carbide membranes is measured as a function of space and time, using a phase-shift interferometer with stroboscopic light. The mode shapes hold information about all the relevant mechanical parameters of the samples, including the spatial distribution of static prestress. We present a simple algorithm to obtain a map of the lateral tensor components of the prestress, with a spatial resolution much better than the wavelength of the bending waves. The method is not limited to measuring the stress of bending waves. It is applicable in almost any situation, where the fields determining the state of the system can be measured as a function of space and time.</dcterms:abstract>
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