Journal of Material Sciences & Engineering

Heredia AS

Publications

• Research Article
  Stress-Strain Characterization in Fiber-Reinforced Composites by Digital Image Correlation
  Author(s): Heredia AS, Aguilar PAM and Ocampo AMHeredia AS, Aguilar PAM and Ocampo AM
  
  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 .. Read More»
  DOI: 10.4172/2169-0022.1000286

  Abstract PDF