Effect of Physical Nonlinearity on Local Buckling in Sandwich Beams


Koissin, Vitaly and Shipsha, Andrey and Skvortsov, Vitaly (2010) Effect of Physical Nonlinearity on Local Buckling in Sandwich Beams. Journal of Sandwich Structures & Materials, 12 (4). pp. 477-494. ISSN 1099-6362

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Abstract:This article deals with experimental, theoretical, and FE characterization of the local buckling in foam-core sandwich beams. In the theoretical approach, this phenomena is considered in a periodic formulation (unbounded wrinkle wave); a nonlinear stress—strain response of the face material is accounted for. In the FE approach, nonlinearity of the core material is also modeled. Full-field strain measurement is employed in the tests showing that the commonly used edgewise compression set-up can cause premature waviness of the faces, and therefore, nonlinear local deformations in the core layer.
Item Type:Article
Copyright:© 2010 Sage
Engineering Technology (CTW)
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Link to this item:http://purl.utwente.nl/publications/75525
Official URL:http://dx.doi.org/10.1177/1099636209104521
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