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The inelastic quasi-static response of sandwich structures to local loading
KTH, Superseded Departments, Aeronautical and Vehicle Engineering.
KTH, Superseded Departments, Aeronautical and Vehicle Engineering.
KTH, Superseded Departments, Aeronautical and Vehicle Engineering.
2004 (English)In: Composite structures, ISSN 0263-8223, E-ISSN 1879-1085, Vol. 64, no 2, 129-138 p.Article in journal (Refereed) Published
Abstract [en]

The paper addresses the inelastic quasi-static response of sandwich beams and panels with foam core to localized loads. The plane and axisymmetric formulations for local indentation or local low-velocity impact by a rigid body are considered; no overall bending is assumed. The governing equations for the face are derived using the Kirchhoff-Love static theory under the assumption that the core crushing follows elastic-ideally-plastic behavior. Analytical solutions are constructed on the basis of the principle of minimum work. The solutions allow predicting the face deflection, size of crushed core area and contact force. In general, the solutions are in good agreement with experimental data and finite element analysis.

Place, publisher, year, edition, pages
2004. Vol. 64, no 2, 129-138 p.
Keyword [en]
sandwich structure, indentation, low-velocity impact, local damage, crushed foam core
National Category
Vehicle Engineering
Identifiers
URN: urn:nbn:se:kth:diva-44926DOI: 10.1016/S0263-8223(03)00221-6ISI: 000223157500001Scopus ID: 2-s2.0-1542572970OAI: oai:DiVA.org:kth-44926DiVA: diva2:454682
Note
QC 20111108Available from: 2011-11-08 Created: 2011-10-26 Last updated: 2017-12-08Bibliographically approved

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