What question did this study set out to answer?

The central aim of this research is to evaluate the minimum detectable damage (MDD) in linkspans influenced by environmental effects and noise.

March 19, 2026Structural Health MonitoringOpen Access

Finite element-based evaluation of minimum detectable damage in the Magerholm Linkspan under environmental, noise, and damage asymmetry effects

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Authors

BLBa Tung LeNorwegian University of Science and Technology BSBartosz SiedziakoNorwegian University of Science and Technology

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Implication

This evaluation demonstrates the impact of environmental variability and noise on damage detectability in linkspans, suggesting strategies for improved assessments.

Key Points

The central aim of this research is to evaluate the minimum detectable damage (MDD) in linkspans influenced by environmental effects and noise.
Utilized a finite element-based sensitivity framework to assess MDD.
Modeled environmental variability using synthetic temperature profiles and tidal stiffness interpolation.
Simulated damage through stiffness reduction in lifting towers.
Calculated detectability using probability of detection and receiver operating characteristic curves based on damage indices.
Tidal variations significantly impact natural frequencies, resulting in a higher MDD compared to temperature effects alone.
MDD increases from 22% in noiseless conditions to over 35% with 3% noise.
Asymmetric damage conditions led to more subtle frequency changes and reduced detectability.
MDD exceeds 50% under noise conditions with asymmetric configurations, highlighting the importance of noise sensitivity.

Cite This Study

Le et al. (2026) studied this question.

synapsesocial.com/papers/69bb928c496e729e6297fe41 https://doi.org/10.1177/14759217261431577

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Implication

This evaluation demonstrates the impact of environmental variability and noise on damage detectability in linkspans, suggesting strategies for improved assessments.

Finite element-based evaluation of minimum detectable damage in the Magerholm Linkspan under environmental, noise, and damage asymmetry effects

Discussion

Member takes

Implication

Key Points

Cite This Study

Finite element-based evaluation of minimum detectable damage in the Magerholm Linkspan under environmental, noise, and damage asymmetry effects

Discussion

Member takes

Implication

Key Points

Cite This Study

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