Determination of the yield stress in Al thin film by applying bulge test
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F21%3APU143986" target="_blank" >RIV/00216305:26620/21:PU143986 - isvavai.cz</a>
Result on the web
<a href="https://iopscience-iop-org.ezproxy.lib.vutbr.cz/article/10.1088/1742-6596/1777/1/012030" target="_blank" >https://iopscience-iop-org.ezproxy.lib.vutbr.cz/article/10.1088/1742-6596/1777/1/012030</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/1777/1/012030" target="_blank" >10.1088/1742-6596/1777/1/012030</a>
Alternative languages
Result language
angličtina
Original language name
Determination of the yield stress in Al thin film by applying bulge test
Original language description
In this work, we have applied an improved method to determine the yield stress and residual stress in a freestanding thin aluminum film by analysing experimental data obtained by the bulge test. The Al thin film was deposited by a magnetron sputtering technique. The film was cyclically loaded with increasing maximum gas pressure. The method to determine the plasticity parameters is based on the load-deflection relation that presents a linear behavior in the elastic regime when it is scaled with the displacement parameter. The plastic deformation induces nonlinear effects that allow determining the elastic limit of the film. At that point, the gas pressure value that generates the elastoplastic transition is identified on the scaled curve. For a bulged square film, the curvatures are computed from an approximated spatial deflection equation to calculate the stresses within the proposed model. The analysis enables construction of biaxial stress-strain curve for the studied film and determination of the yield st
Czech name
—
Czech description
—
Classification
Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
20501 - Materials engineering
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Journal of Physics: Conference Series
ISBN
—
ISSN
1742-6588
e-ISSN
1742-6596
Number of pages
10
Pages from-to
1-10
Publisher name
Neuveden
Place of publication
neuveden
Event location
Kyjev
Event date
Nov 20, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
—