TY - GEN
T1 - Concurrent structural and material fatigue damage prognosis integrating sensor data
AU - He, Jingjing
AU - Guan, Xuefei
AU - Liu, Yongming
N1 - Funding Information: The research reported in this paper was supported by funds from Air Force Office of Scientific Research: Young Investigator Program (Contract No. FA9550-11-1-0025, Project Manager: Dr. David Stargel). The support is gratefully acknowledged.
PY - 2013
Y1 - 2013
N2 - In this paper, a novel method for concurrent structural and material fatigue crack growth analysis integrating sensor data is proposed. The proposed method is based a strain responses reconstruction algorithm for a dynamic system and a time-based fatigue crack growth formulation. The dynamic reconstruction is based on the empirical mode decomposition with intermittency criteria and transformation equations derived from finite element modeling. The structural responses measured from remote locations decomposed into modal responses using empirical mode decomposition. Transformation equations based on finite element modeling are employed to extrapolate the modal responses from the measured locations to critical locations where fatigue damage is likely to occur. The fatigue prognosis problem at the structural and material level is expressed as a set of coupled hirachical state-space functions. Concurrent analysis for a frame strcutrue is demonstrated and discussions are given based on the simulation results.
AB - In this paper, a novel method for concurrent structural and material fatigue crack growth analysis integrating sensor data is proposed. The proposed method is based a strain responses reconstruction algorithm for a dynamic system and a time-based fatigue crack growth formulation. The dynamic reconstruction is based on the empirical mode decomposition with intermittency criteria and transformation equations derived from finite element modeling. The structural responses measured from remote locations decomposed into modal responses using empirical mode decomposition. Transformation equations based on finite element modeling are employed to extrapolate the modal responses from the measured locations to critical locations where fatigue damage is likely to occur. The fatigue prognosis problem at the structural and material level is expressed as a set of coupled hirachical state-space functions. Concurrent analysis for a frame strcutrue is demonstrated and discussions are given based on the simulation results.
UR - https://www.scopus.com/pages/publications/84880833944
UR - https://www.scopus.com/pages/publications/84880833944#tab=citedBy
UR - https://www.scopus.com/pages/publications/84881327930
UR - https://www.scopus.com/pages/publications/84881327930#tab=citedBy
U2 - 10.2514/6.2013-1500
DO - 10.2514/6.2013-1500
M3 - Conference contribution
SN - 9781624102233
T3 - 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
BT - 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
T2 - 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Y2 - 8 April 2013 through 11 April 2013
ER -