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Moving morphable crack components method for structural damage identification

delete2026-08-27
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PRE
AI
Y
Yifei Wang
王
王晓军 (Xiaojun Wang) *
Y
Yanbo Chen
DOI：10.1016/j.ast.2026.113672delete
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Abstract

Abstract

En 中文
• A characterization form for the physical state of cracks based on the Moving Morphable Crack Component (MMCC) was proposed, which eliminates prior assumptions on crack number and morphology while supporting topological changes during crack identification. • The watershed algorithm was introduced into the crack characterization process, achieving automated mapping from continuous level set fields to discontinuous crack geometries. • An inversion identification framework based on XFEM and the GPSO algorithm was proposed, with automated enrichment coupling from watershed-extracted crack segments. • The feasibility and accuracy of the proposed method were verified through numerical simulations covering multiple crack configurations, perforated plates, varying noise levels, and crack spacing, along with experimental tests on aluminum alloy plates.
Keywords:
Crack damage identification
Moving morphable crack component
Level set method
Watershed algorithm
Genetic particle swarm optimization

Journal

Aerospace Science and Technology cover
Aerospace Science and Technology
IF:
5.8
Papers:
1.0W
Citations:
3.0W

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