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Abstract
This paper deals with the local loss of stability (wrinkling) problem of a thin facing of a sandwich panel. Classical solutions to the problem of facing instability resting on a homogeneous and isotropic substructure (a core) are compared. The relations between strain energy components associated with different forms of core deformations are discussed. Next, a new solution for the orthotropic core is presented in detail, which is consistent with the classic solution for the isotropic core. Selected numerical examples confirm the correctness of the analytical formulas. In the last part, parametric analyses are carried out to illustrate the sensitivity of wrinkling stress to a change in the material parameters of the core. These analyses illustrate the possibility of using the equations derived in the article for the variability of Poisson’s ratio from -1 to 1 and for material parameters strongly deviating from isotropy.
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Authors (4)
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Zbigniew Pozorski
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Jolanta Pozorska
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/ma14175043
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Materials
no. 14,
ISSN: 1996-1944 - Language:
- English
- Publication year:
- 2021
- Bibliographic description:
- Pozorski Z., Pozorska J., Kreja I., Smakosz Ł.: On Wrinkling in Sandwich Panels with an Orthotropic Core// Materials -Vol. 14,iss. 17 (2021), s.5043-
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/ma14175043
- Sources of funding:
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- Poznan University of Technology, grant number 0411/SBAD/0004 and Czestochowa University of Technology.
- Verified by:
- Gdańsk University of Technology
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On Wrinkling in Sandwich Panels with an Orthotropic Core
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