| Autor: |
Heredia As, Ocampo Am, Aguilar Pam |
| Rok vydání: |
2016 |
| Předmět: |
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| Zdroj: |
Journal of Material Science & Engineering. |
| ISSN: |
2169-0022 |
| DOI: |
10.4172/2169-0022.1000286 |
| Popis: |
Composite materials are widely used in structural mechanics as they can withstand high loads; although after a while, they can present relative strain due to these loadings. In the present work, it is implemented digital image correlation using one laser-beam and the speckles created by its reflection to describe the mechanical behavior of fiber-reinforced composites submitted under compression test. Composites were tested in two set of arrays: the first was done with fibers orientated parallel to the load and the second was done with fibers randomly orientated, as it is known that the stress-strain evolution change according to the orientation of the fibers. Our method allows us to evaluate the heterogeneous strain evolution observed during the tests. Validity of optical strain-measurements is assessed against the results of an universal testing machine, a good correlation was found by comparing the results. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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