Multiscale shear–strain gradient for detecting delamination in composite laminates

M.S. Cao , Maciej Radzieński , W. Xu , Wiesław Ostachowicz


Delamination is a typical failure mode in composite laminates. For detecting delamination, a new physical concept of a multiscale shear–strain gradient (MSG) is formulated from a vibrational mode shape of a Kirchhoff plate. In a laminate containing a small delamination, the MSG characterizes shear–strain singularities with an explicit physical implication and no need for material properties, in turn manifesting the distribution of the delamination; moreover, multiscale property enables the MSG to identify delaminations at a high noise level. Numerical and experimental results show that the MSG defies the traditional understanding that vibrational features are inappropriate to localize a slight delamination.
Author M.S. Cao
M.S. Cao,,
, Maciej Radzieński - [The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences (IMP PAN) [Polish Academy of Sciences (PAN)]]
Maciej Radzieński,,
- Instytut Maszyn Przepływowych im. Roberta Szewalskiego Polskiej Akademii Nauk
, W. Xu
W. Xu,,
, Wiesław Ostachowicz (FACME / IAE)
Wiesław Ostachowicz,,
- Institute of Automotive Engineering
Journal seriesApplied Physics Letters, ISSN 0003-6951
Issue year2013
Publication size in sheets0.3
Keywords in Englishdamage, identification, model, cracks
ASJC Classification3101 Physics and Astronomy (miscellaneous)
Languageen angielski
Score (nominal)40
Score sourcejournalList
ScoreMinisterial score = 40.0, 10-01-2020, ArticleFromJournal
Ministerial score (2013-2016) = 40.0, 10-01-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2013 = 1.634; WoS Impact Factor: 2013 = 3.515 (2) - 2013=3.739 (5)
Citation count*5 (2015-04-09)
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