On the theoretical strength limit of the layered elastic and viscoelastic composites in compression

The theoretical strength limit in compression (TSLC) of composite material with two alternating isotropic homogeneous elastic and viscoelastic layers is studied. The investigation is made within the piecewise-homogeneous body model with the use of the Three-Dimensional Linearized Theory of Stability...

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Bibliographic Details
Published in:Applied mathematical modelling 2011-11, Vol.35 (11), p.5470-5479
Main Author: Cilli, Arzu
Format: Article
Language:English
Subjects:
Buckling
Composite material
Compressing
Compression
Compressive strength
Defects
Elastic limit
Elasticity
Exact sciences and technology
Fracture mechanics
Fracture mechanics (crack, fatigue, damage...)
Fundamental areas of phenomenology (including applications)
Initial imperfection
Mathematical models
Physics
Solid mechanics
Static elasticity (thermoelasticity...)
Strength
Structural and continuum mechanics
Theoretical strength limit in compression
Viscoelasticity
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Summary:The theoretical strength limit in compression (TSLC) of composite material with two alternating isotropic homogeneous elastic and viscoelastic layers is studied. The investigation is made within the piecewise-homogeneous body model with the use of the Three-Dimensional Linearized Theory of Stability for elastic and viscoelastic materials. It is assumed that there is an initial imperfection in the local curving form of the reinforcing layers along the direction which is inclined to the layers. As the criterion for determination of the TSLC, the case is taken for which the aforementioned imperfections start to increase indefinitely. The numerical results for the TSLC are presented and discussed. According to these numerical results, in particular, the direction (or the surface) along which the fracture in compression takes place, is determined.
ISSN:0307-904X
DOI:10.1016/j.apm.2011.04.032