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EXPERIMENTAL DETERMINATION OF STRESS STATE IN
DAMAGED COMPOSITE LAMINATES. MACROSCOPIC
PROPERTIES ALTERATION AND DAMAGE
MODES IDENTIFICATION
by Dionysios T. G. Katerelos Sound Technology
and Musical Instruments Department Ionian Islands
Technological Educational Institute St. Typaldou
ave., Lixouri GR-282 00 GREECE
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Raman scattering
C. V Raman 1928
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Kevlar 49 fibre spectrum in air and the origin of
the used Raman bands
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Calibration Curves
Kevlar 49
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Raman Apparatus
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Stress Transfer Interfacial Shear Stress
Galiotis et al.
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Damage Recording due to Broken Fibers
Galiotis et al.
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Transverse Cracking Specimen Geometry
Fully saturated specimen. The Raman window is
indicated
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Transverse Cracking Poor Glass Raman
signal The use of appropriate sensors of the
order of the magnitude of the reinforcing fibres
to measure the developing strain
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Transverse Cracking Cross-Ply Laminate 0/90s
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Transverse Cracking Angle-Ply Laminate 0/45s
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Transverse Cracking Secondary Damage Modes
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Youngs Modulus Reduction due to Cracking in
Cross Ply Laminates
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Youngs Modulus Reduction due to Cracking in
Angle Ply 0/45s Laminates
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Stress Concentration in Notched Composites
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Stress Concentration in Notched Composites
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Thermal Sensing
Galiotis et al.
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Transverse Cracking Secondary Damage
Modes Modeling