Assessment of fatigue damage evolution in woven composite materials using infra-red techniques


Fruehmann, R.K., Dulieu-Barton, J.M. and Quinn, S. (2010) Assessment of fatigue damage evolution in woven composite materials using infra-red techniques Composites Science and Technology, 70, pp. 937-946. (doi:10.1016/j.compscitech.2010.02.009).

Download

[img] PDF CSTE-D-09-00809_accepted_manuscript.pdf - Other
Download (3MB)

Description/Abstract

Thermoelastic stress analysis (TSA) is used to study the growth of fatigue damage in single and two
ply, 2 x 2 twill woven composite materials. Test specimens were subjected to a uniaxial tensile cyclic
loading with maximum stresses of 10, 15 and 20% of the ultimate failure stress. The development of
fatigue damage locally within the weft yarns is monitored using high resolution TSA. The specimens
were subsequently inspected using optical microscopy to evaluate the location and extent of cracks.
Cracks were found in the weft fibres, running transverse to the loading direction. It is demonstrated that
the lighter weight fabric is more resilient to damage progression. A signature pattern is identified in the
TSA phase data that indicates the onset and presence of fatigue damage in the composite material.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1016/j.compscitech.2010.02.009
ISSNs: 0266-3538 (print)
Keywords: A: Textile composites, B: Fatigue, C: Stress concentrations, Thermoelastic stress analysis (TSA)
Subjects:
Organisations: Fluid Structure Interactions Group
ePrint ID: 72546
Date :
Date Event
2010Published
Date Deposited: 18 Feb 2010
Last Modified: 18 Apr 2017 20:55
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/72546

Actions (login required)

View Item View Item