TY - GEN
T1 - Probabilistic fatigue life prediction of composite laminates using Bayesian updating
AU - Peng, Tishun
AU - Liu, Yongming
N1 - Publisher Copyright:
© 2015 American Institute of Aeronautics and Astronautics Inc. All rights reserved.
PY - 2015
Y1 - 2015
N2 - In this paper, the general framework for composite fatigue life prediction is proposed that can incorporate the detected stiffness from structural health monitoring system. First, an in-situ composite fatigue testing with pre-installed piezoelectric sensors is designed and performed to collected sensor signal and overall stiffness measurement. Signal processing techniques are implemented to extract damage identification features. Following this, power law is introduced to express the stiffness degradation mechanism and a general prognosis framework is proposed. Next, the detected overall stiffness degradation is integrated with a Bayesian inference framework for remaining useful life (RUL) prediction. The prognosis performance is validated using prognostics metric. Finally, some conclusions based this work are presented and directions for future work are drawn.
AB - In this paper, the general framework for composite fatigue life prediction is proposed that can incorporate the detected stiffness from structural health monitoring system. First, an in-situ composite fatigue testing with pre-installed piezoelectric sensors is designed and performed to collected sensor signal and overall stiffness measurement. Signal processing techniques are implemented to extract damage identification features. Following this, power law is introduced to express the stiffness degradation mechanism and a general prognosis framework is proposed. Next, the detected overall stiffness degradation is integrated with a Bayesian inference framework for remaining useful life (RUL) prediction. The prognosis performance is validated using prognostics metric. Finally, some conclusions based this work are presented and directions for future work are drawn.
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U2 - 10.2514/6.2015-1145
DO - 10.2514/6.2015-1145
M3 - Conference contribution
AN - SCOPUS:85088740110
T3 - 17th AIAA Non-Deterministic Approaches Conference
BT - 17th AIAA Non-Deterministic Approaches Conference
PB - American Institute of Aeronautics and Astronautics Inc.
T2 - 17th AIAA Non-Deterministic Approaches Conference 2015
Y2 - 5 January 2015 through 9 January 2015
ER -