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Use of a tolerance analysis model for damage identification in structures.

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Title: Use of a tolerance analysis model for damage identification in structures.
Authors: Armillotta, Antonio1 (AUTHOR) antonio.armillotta@polimi.it
Source: International Journal of Advanced Manufacturing Technology. Dec2025, Vol. 141 Issue 9/10, p5271-5288. 18p.
Subjects: Tolerance analysis (Engineering), Structural health monitoring, Finite element method, Fault diagnosis, Diagnostic examinations, Measurement errors, Sensitivity analysis
Abstract: The paper describes a method for detecting damage in members of a structure from displacement measurements at its nodes. In the context of structural health monitoring, this task is often addressed with model-based methods that compare measurements with values predicted by finite element analysis. In the proposed approach, the underlying model for damage detection is a sensitivity matrix of the same type that is also used in tolerance analysis of mechanical assemblies. The matrix is calculated using the static analogy, a previously proposed tolerance analysis method that has proven particularly useful and straightforward for structures. If statistically abnormal values of the node displacements are detected, their source is localized by a diagnostic test based on the sensitivity matrix. This was validated by means of simulation plans on examples of statically determinate plane trusses. The results help understand how the accuracy of the test depends on the magnitude of the damage relative to measurement errors. Moreover, they suggest that the test can retain an acceptable accuracy even with a significantly reduced subset of measured displacements. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Advanced Manufacturing Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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PubType: Academic Journal
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  Data: Use of a tolerance analysis model for damage identification in structures.
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  Data: <searchLink fieldCode="AR" term="%22Armillotta%2C+Antonio%22">Armillotta, Antonio</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> antonio.armillotta@polimi.it</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Advanced+Manufacturing+Technology%22">International Journal of Advanced Manufacturing Technology</searchLink>. Dec2025, Vol. 141 Issue 9/10, p5271-5288. 18p.
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  Data: <searchLink fieldCode="DE" term="%22Tolerance+analysis+%28Engineering%29%22">Tolerance analysis (Engineering)</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+health+monitoring%22">Structural health monitoring</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Fault+diagnosis%22">Fault diagnosis</searchLink><br /><searchLink fieldCode="DE" term="%22Diagnostic+examinations%22">Diagnostic examinations</searchLink><br /><searchLink fieldCode="DE" term="%22Measurement+errors%22">Measurement errors</searchLink><br /><searchLink fieldCode="DE" term="%22Sensitivity+analysis%22">Sensitivity analysis</searchLink>
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  Data: The paper describes a method for detecting damage in members of a structure from displacement measurements at its nodes. In the context of structural health monitoring, this task is often addressed with model-based methods that compare measurements with values predicted by finite element analysis. In the proposed approach, the underlying model for damage detection is a sensitivity matrix of the same type that is also used in tolerance analysis of mechanical assemblies. The matrix is calculated using the static analogy, a previously proposed tolerance analysis method that has proven particularly useful and straightforward for structures. If statistically abnormal values of the node displacements are detected, their source is localized by a diagnostic test based on the sensitivity matrix. This was validated by means of simulation plans on examples of statically determinate plane trusses. The results help understand how the accuracy of the test depends on the magnitude of the damage relative to measurement errors. Moreover, they suggest that the test can retain an acceptable accuracy even with a significantly reduced subset of measured displacements. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of International Journal of Advanced Manufacturing Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s00170-025-16893-x
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      – Code: eng
        Text: English
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        PageCount: 18
        StartPage: 5271
    Subjects:
      – SubjectFull: Tolerance analysis (Engineering)
        Type: general
      – SubjectFull: Structural health monitoring
        Type: general
      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Fault diagnosis
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      – SubjectFull: Diagnostic examinations
        Type: general
      – SubjectFull: Measurement errors
        Type: general
      – SubjectFull: Sensitivity analysis
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      – TitleFull: Use of a tolerance analysis model for damage identification in structures.
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              Text: Dec2025
              Type: published
              Y: 2025
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              Value: 141
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