Impact damage characterization for varying areal-weight unidirectional carbon fiber-reinforced polymer circuit-analog absorbers

Joseph C. O'Donnell, Ram M. Narayanan

Research output: Contribution to journalArticlepeer-review

Abstract

This paper numerically characterizes the effects of normal, blunt impact damage on unidirectional carbon-fiber reinforced polymer (CFRP) circuit analog absorbers (CAA). Single-layer CFRP CAAs are fabricated using a wet-layup technique and are then subjected to controlled impact scenarios. A free-space measurement system is implemented to track and quantify changes to the complex permittivity and sheet impedance of the CFRP and absorption capabilities of the CAA. Accuracy and repeatability analysis for both the damaging apparatus and the material characterization interface are presented. Alternative simulation methods and damage quantification techniques for impact damage in CFRP CAAs are developed.

Original languageEnglish (US)
Article number108427
JournalComposites Part B: Engineering
Volume202
DOIs
StatePublished - Dec 1 2020

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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