Dynamic compressive strengths of polymeric composites: Testing and modeling

C. T. Sun, Jia-Lin Tsai

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Scopus citations

Abstract

The modeling and testing methods for dynamic compressive strength of unidirectional fiber-reinforced polymeric composites were reviewed and the results discussed. In modeling, attention was focused on the fiber microbuckling model and the kink band model, and how they were extended to account for the effect of strain rate. A quantitative comparison of the microbuckling model and the kink band model was made in predicting compressive strengths of S2/8552 glass/epoxy off-axis specimens. Challenges in high-strain rate testing of 0° composites using the split Hopkinson pressure bar were discussed. The approach in using off-axis compressive strength data to determine the longitudinal compressive strength of unidirectional composites was presented. By using a viscoplasticity model to describe the rate-dependent tangent shear modulus, the microbuckling model was extended to predict the dynamic compressive strength of composites. From the model predictions and experimental data, the influence of shear stresses on the compressive strength of composites was highlighted.

Original languageEnglish
Title of host publicationDynamic Failure of Materials and Structures
PublisherSpringer US
Pages107-129
Number of pages23
ISBN (Print)9781441904454
DOIs
StatePublished - 1 Dec 2010

Keywords

  • Carbon/epoxy composite
  • Compressive strength
  • Glass/epoxy composite
  • Kink band model
  • Microbuckling
  • Off-axis composite
  • Shear stress
  • Split Hopkinson pressure bar
  • Strain rate
  • Tangent shear modulus
  • Viscoplasticity

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    Sun, C. T., & Tsai, J-L. (2010). Dynamic compressive strengths of polymeric composites: Testing and modeling. In Dynamic Failure of Materials and Structures (pp. 107-129). Springer US. https://doi.org/10.1007/978-1-4419-0446-1_4