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Ji, Wooseok
Composite Materials and Structures Lab
Research Interests
  • Mechanics of composites
  • In situ experiments
  • Fracture mechanics
  • Computational solid mechanics
  • Advanced finite element methods
  • Static and dynamic stability of structures


Wrinkling and edge buckling in orthotropic sandwich beams

DC Field Value Language Ji, Wooseok ko Waas, Anthony M. ko 2014-12-23T00:09:22Z - 2014-12-22 ko 2008-06 -
dc.identifier.citation JOURNAL OF ENGINEERING MECHANICS-ASCE, v.134, no.6, pp.455 - 461 ko
dc.identifier.issn 0733-9399 ko
dc.identifier.uri -
dc.description.abstract A sandwich beam buckling problem is studied here using two-dimensional elasticity to model the beam constituents. The global and local instability of such a beam with orthotropic constituents under various boundary conditions are investigated. The face sheet and the core are assumed to be linear elastic orthotropic continua. General buckling deformation modes of the sandwich beam subjected to uniaxial compressive loading are considered. The appropriate incremental stress and conjugate incremental finite-strain measure for the instability problem of the sandwich beam, and the corresponding constitutive model are addressed. It is shown that a sandwich beam having a core with a negligible stiffness compared to the face sheets is prone to fail by edge buckling. The present analysis is compared with several previous analytical studies and corresponding experimental results. Finite-element analyses are carried out for comparison against the theoretical predictions. The formulation used in the finite-element code is discussed in relation to the formulation adopted in the theoretical derivation. ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.subject sandwich structures ko
dc.subject axial compression ko
dc.subject elastic analysis ko
dc.subject edge effects ko
dc.subject finite element method ko
dc.subject buckling ko
dc.subject beams ko
dc.subject orthotropism ko
dc.title Wrinkling and edge buckling in orthotropic sandwich beams ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-43949093050 ko
dc.identifier.wosid 000255969500002 ko
dc.type.rims ART ko
dc.description.wostc 10 * 2015-05-06 *
dc.identifier.doi 10.1061/(ASCE)0733-9399(2008)134:6(455) ko
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