Characteristic progressive damage modes in a plain weave textile composite under multiaxial loads
| Autor: | John D Whitcomb, W Ross McLendon |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
business.industry Mechanical Engineering Composite number 02 engineering and technology Structural engineering 021001 nanoscience & nanotechnology Finite element method Cracking 020303 mechanical engineering & transports 0203 mechanical engineering Shear (geology) Mechanics of Materials Materials Chemistry Ceramics and Composites Plain weave Textile composite Composite material 0210 nano-technology business |
| Zdroj: | Journal of Composite Materials. 51:1539-1556 |
| ISSN: | 1530-793X 0021-9983 |
| DOI: | 10.1177/0021998316662132 |
| Popis: | A finite element-based model was developed to predict progressive damage evolution within a plain weave textile composite subjected to various combinations of in-plane tension and shear. Cracking in the tows, matrix, and interfaces was accounted for through cohesive zone modeling. Shear damage in the tows was accounted for through a continuum damage model. The damage behavior in the tows was stochastic in nature with properties determined from prior investigations of composite microstructures that included randomness in fiber positions. The predicted progressive damage evolution was found to qualitatively match well with experimental observations performed on similar material systems. The effect of temperature change, which modifies the thermally induced stresses in the tows as well as the apparent strength of the tows (due to changes in thermally induced microstresses at the fiber–matrix scale) was examined. Finally, the progressive failure responses under different loadings were compared to identify common characteristic behaviors. The effect of these characteristic behaviors on the textile’s effective response was investigated along with approaches to incorporate the behaviors into a structural scale progressive failure model. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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