Development of Removable Visual Impact Indicator or Polymer Composite Materials

Authors

  • Sergejs VIDINEJEVS University of Latvia
  • Olga BULDERBERGA University of Latvia
  • Andrey ANISKEVICH University of Latvia

DOI:

https://doi.org/10.5755/j02.ms.27206

Keywords:

impact indicator, removable indicator, microcapsules, adhesive tape, ball-drop test, peel test

Abstract

The prototype of removable visual impact indicator for thermoset polymer composite materials is developed, and its characteristics are experimentally determined. The indicator is a fabric tape glued by epoxy to the surface of the polymer composite. The tape is impregnated with a composition that provides a visual response at the place of an impact on the composite surface. Ball-drop tests demonstrated the increase of the magnitude of the visual response with the impact energy at different substrate hardnesses. The shelf-life and mode of the tape storage until commissioning are determined. Peel tests showed the ability to remove a used indicator without damaging the surface of the composite.

Author Biographies

Olga BULDERBERGA, University of Latvia

Institute for Mechanics of Materials

Andrey ANISKEVICH, University of Latvia

Institute for Mechanics of Materials

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Published

2021-08-23

Issue

Section

POLYMERS AND COMPOSITES