Investigation of composites vibration fatigue behaviour: high frequency mode II delamination propagation

Published on Jan 1, 2016
G. Androuin1
Estimated H-index: 1
,
Laurent Michel + 1 AuthorsI. Maillet3
Estimated H-index: 3
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Abstract
Mode II crack propagation tests were conducted at high frequencies on carbon fiber/epoxy laminates under vibration fatigue at resonance. In parallel, classical fatigue tests were carried out at 10Hz on a servo-hydraulic machine in order to compare results in terms of Fatigue Crack Growth Rate (FCGR) vs Energy Release Rate (ERR) curves. Different load ratios were considered for classical tests. Frequency and load ratio effects were determined from both high and low frequency tests results. Using an appropriate definition of ΔG, master propagation FCGR vs ERR curves were plotted.
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