Quantitative Evaluation of Delamination in Composites Using Lamb Waves
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F17%3AN0000134" target="_blank" >RIV/00010669:_____/17:N0000134 - isvavai.cz</a>
Alternative codes found
RIV/00010669:_____/18:N0000055
Result on the web
<a href="http://iopscience.iop.org/article/10.1088/1757-899X/326/1/012006/meta" target="_blank" >http://iopscience.iop.org/article/10.1088/1757-899X/326/1/012006/meta</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1757-899X/326/1/012006" target="_blank" >10.1088/1757-899X/326/1/012006</a>
Alternative languages
Result language
angličtina
Original language name
Quantitative Evaluation of Delamination in Composites Using Lamb Waves
Original language description
Ultrasonic guided wave monitoring has become very popular in the area of structural health monitoring (SHM) of aerospace structures. Any possible type of damage must be reliably assessed. The paper deals with delamination length determination in DCB specimens using Lamb waves. An analytical equation based on the velocity dependence on variable thickness is utilized. The group velocity of the fundamental antisymmetric A0 mode rapidly changes in a particular range of the frequency-thickness product. Using the same actuation frequency the propagation velocity is different for delaminated structure. Lamb wave based delamination lengths were compared to the visually determined lengths. The method of the wave velocity determination proved to be essential. More accurate results were achieved by tracking the maximum amplitude of A0 mode than the first signal arrival. These findings are considered as the basis for the damage evaluation of complex structures.
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
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
IOP Confrence Series: Materials Science and Engineering
ISBN
—
ISSN
1757-8981
e-ISSN
—
Number of pages
6
Pages from-to
nestrankovano
Publisher name
Institute of Physics Publishing
Place of publication
Neuveden
Event location
Dubaj, SAE
Event date
Jan 1, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
—