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Buckling of three-layered composite beams with viscoelastic interaction.
- Source :
-
Composite Structures . Jan2014, Vol. 107, p512-521. 10p. - Publication Year :
- 2014
-
Abstract
- Abstract: A three-layered structure is composed by two external elastic beams that sandwich a viscoelastic core providing their shear coupling. The time-dependent bending of a simply-supported composite-beam of this type, axially-compressed and with an initial sag, are studied assuming a Maxwell–Wierchert constitutive model of viscoelasticity accounting for the memory effect. The phenomena of glassy-, rubber- and creep-buckling are examined for various values of the load. Comparisons are made with a quasi-elastic approximation that assumes a relaxed elastic shear modulus for the interlayer, parametrically dependent on time. The limits of this simplified approach are discussed. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 02638223
- Volume :
- 107
- Database :
- Academic Search Index
- Journal :
- Composite Structures
- Publication Type :
- Academic Journal
- Accession number :
- 92905868
- Full Text :
- https://doi.org/10.1016/j.compstruct.2013.08.006