Study of mixtures of different fibers in sheet molding compound (SMC)

Mauricio Cabrera Ríos*, José M. Castro, L. James Lee

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review


The automotive industry requires parts with high strength and low weight, and if the application requires it, surface quality. These requirements have led to investigate the use of carbon fibers as a reinforcement alternative to the widely used glass fibers. Our previous studies compared the performance of glass and carbon fibers in unsaturated polyester based sheet molding compounds (SMC) for non-structural applications. These showed that there are compromises between the performance of physical properties, cost (incurred by adding the more expensive carbon fibers), and consistency (i.e. variability). In this work, we investigated the effect on physical properties of SMC structural parts when there is a mixture of carbon and glass fibers. Special considerations in the analysis and the implementation of these experiments are discussed.

Original languageEnglish
Number of pages5
StatePublished - May 2004
EventANTEC 2004 - Annual Technical Conference Proceedings - Chicago, IL., United States
Duration: 16 May 200420 May 2004


ConferenceANTEC 2004 - Annual Technical Conference Proceedings
Country/TerritoryUnited States
CityChicago, IL.


  • Mixture Experiments
  • SMC reinforcement
  • Sheet Molding Compound
  • Structural Composites


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