Stiffness Based Fatigue Characterisation of CFRP

Abstract:

This paper investigates the possibility of determining damage under fatigue loading in carbon fibre reinforced plastics (CFRP) by using mechanical stiffness. Therefore, stress-strain-hysteresis recorded in fatigue tests under sinusoidal loads are used for moduli calculation. Additionally, a new method for stiffness evaluation called cyclic tensile tests is presented. Its results are compared to results from hysteresis analysis and to actual damage mechanisms monitored non-destructively with thermography analysis.

• Periodical: Advanced Materials Research (Volumes 891-892)
• Pages: 166-171
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.891-892.166
• Online since: March 2014
• Authors: Julia Brunbauer*, Florian Arbeiter, Steffen Stelzer, Gerald Pinter
• Keywords: CFRP, Damage, Fatigue, Mechanical Testing, Stiffness, Thermography

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