Dynamic stability of uncertain laminated beams subjected to subtangential loads
| Autor: | Vijay K. Goyal, Rakesh K. Kapania |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Engineering
business.industry Mechanical Engineering Applied Mathematics Monte Carlo method Probabilistic logic Perturbation (astronomy) Probabilistic Structural engineering Condensed Matter Physics Stability (probability) Finite element method Dynamic stability Finite element Materials Science(all) Mechanics of Materials Modeling and Simulation Modelling and Simulation Laminated composites General Materials Science Sensitivity (control systems) business Focus (optics) Nonconservative load |
| Zdroj: | International Journal of Solids and Structures. 45(10):2799-2817 |
| ISSN: | 0020-7683 |
| DOI: | 10.1016/j.ijsolstr.2007.11.024 |
| Popis: | Because of the inherent complexity of fiber-reinforced laminated composites, it can be challenging to manufacture composite structures according to their exact design specifications, resulting in unwanted material and geometric uncertainties. Thus the understanding of the effect of uncertainties in laminated structures on their static and dynamic responses is highly important for a reliable design of such structures. In this research, we focus on the probabilistic stability analysis of laminated structures subject to subtangential loading, a combination of conservative and nonconservative tangential loads, using the dynamic criterion. In order to study the dynamic behavior by including uncertainties into the problem, three models were developed: exact Monte Carlo simulation, sensitivity-based Monte Carlo simulation, and probabilistic FEA. These methods were integrated into the existing finite element analysis. Also, perturbation and sensitivity analysis have been used to study nonconservative problems to study the stability analysis using the dynamic criterion. |
| Databáze: | OpenAIRE |
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