Damage Investigation of Woven Carbon-Epoxy Multi-Layer Composites Under Tensile Loading


Karahan M. , Karahan N.

18th International Bhurban Conference on Applied Sciences and Technologies (IBCAST), Islamabad, Pakistan, 12 - 16 January 2021, pp.34-39 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.1109/ibcast51254.2021.9393282
  • City: Islamabad
  • Country: Pakistan
  • Page Numbers: pp.34-39
  • Keywords: woven composites, mechanical properties, damage, acoustic emission, 3D ORTHOGONAL WEAVE, PART 1

Abstract

In this study, the mechanical behaviour, damage progression of twill woven carbon composites with various fibre volume fractions under uni-axial tension were investigated. Observations of damage were made using acoustic emission, x-ray and microscopy techniques. The mechanical properties and strain values of the composite damage thresholds were determined. The strain levels at which AE events were recorded for the first time were affected by variations in fibre volume fraction; however, characteristic strain values indicating damage initiation were not affected by variations in fibre volume fraction.