TY - GEN
T1 - Damage detection method by topology optimization based on eigenvalue analysis
AU - Nishizu, Takafumi
AU - Takezawa, Akihiro
AU - Kitamura, Mitsuru
N1 - Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 2014
Y1 - 2014
N2 - The non-destructive testing is significant in the long life operation of large structure such as ships. In the non-destructive testing, the variation in structural characteristics from the original one to the damaged one is used to identify the damage. In this paper, a damage identification method in non-destructive testing is proposed using difference of eigenvalue between the original structure and the damaged one. Damage is specified by topology optimization that minimizes this difference. An optimization algorithm is constructed based on the topology optimization and MMA. The validity and the usefulness of the proposed method are confirmed by several numerical examples.
AB - The non-destructive testing is significant in the long life operation of large structure such as ships. In the non-destructive testing, the variation in structural characteristics from the original one to the damaged one is used to identify the damage. In this paper, a damage identification method in non-destructive testing is proposed using difference of eigenvalue between the original structure and the damaged one. Damage is specified by topology optimization that minimizes this difference. An optimization algorithm is constructed based on the topology optimization and MMA. The validity and the usefulness of the proposed method are confirmed by several numerical examples.
KW - Eigenvalue analysis
KW - Finite element method
KW - MMA
KW - Non-destructive inspection
KW - Sensitivity analysis
KW - SIMP
KW - Topology optimization
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M3 - Conference contribution
AN - SCOPUS:84906901838
SN - 9781880653913
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 883
EP - 889
BT - Proceedings of the 24th International Ocean and Polar Engineering Conference, ISOPE Busan
PB - International Society of Offshore and Polar Engineers
T2 - 24th International Ocean and Polar Engineering Conference, ISOPE 2014 Busan
Y2 - 15 June 2014 through 20 June 2014
ER -