Buckling analyses of viscoelastic structures considering ageing and damage effects
Source abstract
Abstract
Abstract The durability of structures made of composite materials is affected by diverse factors, among which creep deformation, ageing and damage. Ageing is related to elapsed time (with different effects in different environmental conditions); damage is related to microstructural modifications due stress and/or strain inputs. The formal definition of these effects and the corresponding constitutive formulations are presented. These formulations are used to obtain analytical solutions and also to implement a Finite Element programme for viscoelastic analysis of laminar structures in a large displacement with small strains context. Then, the effects of ageing and damage on both the short and the long term stability of beam columns are analyzed. Some examples for verification of the formulation and for the comparison of effect are presented.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Structural Behavior of Reinforced Concrete · Mechanical Behavior of Composites · Composite Structure Analysis and Optimization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (19)
Show source-provided references
1. Physical aging in polymers and polymer composites: an analysis and method for time-aging time superposition10.1002/pen.11643 ↗
2. Long-term durability of fiber-reinforced polymer–matrix composite materials for infrastructure applications: a review
3. An analytical–numerical framework for the study of ageing in fibre reinforced polymer composites10.1016/j.compstruct.2003.12.006 ↗
4. Oliveira BF, Creus GJ. Analytical-numerical simulation of aging effects on composite structures. In: The Third International Conference on. Durability & Field Applications of Fiber Reinforced Polymer Composites for Construction (CDCC/2007), Proceedings, Quebec City, 2007.
5. Viscoelastic buckling
6. Finite-element modelling of creep-induced buckling of HDPE elements10.1007/BF02359979 ↗
7. Viscoelastic analysis of creep response for uniaxially-compressed laminates with initial deflection including the effect of physical aging10.1016/S0020-7683(97)00120-0 ↗
8. Creep buckling of slender columns10.1061/JSDEAG.0001259 ↗
9. Viscoelastic failure analysis of composite plates and shells10.1016/S0263-8223(00)00069-6 ↗
10. A model for anisotropic viscoelastic damage in composites10.1016/j.compstruct.2009.10.020 ↗
11. Notion of continuum damage mechanics and its application to anisotropic creep damage theory10.1115/1.3225633 ↗
12. Mechanical modeling of material damage10.1115/1.3173673 ↗
13. Sidoroff · 1981
14. Visco-hyperelastic model with internal state variable coupled with discontinuous damage concept under total lagrangian formulation10.1016/S0749-6419(02)00089-X ↗
15. Voyiadjis · 1999
16. Nonlinear viscoelastic behavior of paper fiber composites10.1016/j.compscitech.2005.02.007 ↗
17. Bathe · 1996
18. Geometrically nonlinear finite elements analysis of viscoelastic composite materials under mechanical and higrothermal loads10.1016/0045-7949(94)90216-X ↗
19. Yang YB, Shieh MS. Solution method for nonlinear problems with multiple critical points. AIAA J 1990;28(12):2110–6 [see also Kuo SR, Yang YB. Tracing postbuckling paths of structures containing multi-loops. Int J Numer Meth Eng 1995;38:4053–75].