Analytical Model and Numerical Analysis of the Elastic Behavior of Triaxial Braided Composites
| Autor: | Lee W. Kohlman, Chao Zhang, Wieslaw K. Binienda |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Materials science
business.industry Mechanical Engineering Fiber volume ratio Numerical analysis Mesoscale meteorology Aerospace Engineering Structural engineering Finite element method Fabric structure General Materials Science Fiber bundle Composite material Elasticity (economics) business Civil and Structural Engineering Tensile testing |
| Zdroj: | Journal of Aerospace Engineering. 27:473-483 |
| ISSN: | 1943-5525 0893-1321 |
| DOI: | 10.1061/(asce)as.1943-5525.0000369 |
| Popis: | This paper is concerned with elastic behavior of a triaxial braided composite by using a three-dimensional analytical model and mesoscale finite-element (FE) analysis, in conjunction with experimental observations. The analytical method and FEM take into account the actual fabric structure by considering the fiber undulation and actual architecture parameters. A representative unit cell model of the triaxial braided architecture is first identified based on fiber volume ratio, specimen thickness, and microscopic image analysis. Detailed geometric parameters for axial and bias fiber bundles are obtained, which provide precise information to enable the development of analytical and FE models. A general three-dimensional analytical model based on realistic architecture is developed with consideration of axial and bias fiber undulation. A typical study on the effect of axial fiber undulation is presented through the analytical model and axial tensile test. The prediction of effective elastic constants... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|