Buckling of reticulated laminated veneer lumber shells in consideration of the creep

The constitutive model of laminated veneer lumber dealing with the creep and suitable for FE modeling was developed, based on the year-long tension and compression tests of laminated veneer lumber. The constitutive model was incorporated into the commercial FE software ABAQUS by developing a user-de...

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Bibliographic Details
Published in:Engineering structures 2010-09, Vol.32 (9), p.2912-2918
Main Authors: Zhou, H.Z., Fan, F., Zhu, E.C.
Format: Article
Language:English
Subjects:
Applied sciences
Buckling
Building structure
Buildings. Public works
Constitutive relationships
Construction (buildings and works)
Creep
Creep (materials)
Exact sciences and technology
Finite element
Finite element method
Laminated veneer lumber
Laminates
Materials
Mathematical models
Reticulated shell
Shell structure
Shells
Strength of materials (elasticity, plasticity, buckling, etc.)
Structural analysis. Stresses
Veneers
Wood
Wood structure
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Summary:The constitutive model of laminated veneer lumber dealing with the creep and suitable for FE modeling was developed, based on the year-long tension and compression tests of laminated veneer lumber. The constitutive model was incorporated into the commercial FE software ABAQUS by developing a user-defined subroutine UMAT. FE models to predict the long-term behaviour of reticulated laminated veneer lumber shells, buckling in particular, were developed. Buckling analysis of single layer reticulated laminated veneer lumber shells with three-directional mesh was conducted. The interdependent relationship between the creep buckling load and the buckling time of the shells was revealed through the analysis, and the safety load against buckling during service life of the shells was defined.
ISSN:0141-0296
1873-7323
DOI:10.1016/j.engstruct.2010.05.010