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3D Reality-Based Survey and Retopology for Structural Analysis of Cultural Heritage

Sensors (Basel, Switzerland), 2022-12, Vol.22 (24), p.9593 [Peer Reviewed Journal]

COPYRIGHT 2022 MDPI AG ;2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;2022 by the authors. 2022 ;ISSN: 1424-8220 ;EISSN: 1424-8220 ;DOI: 10.3390/s22249593 ;PMID: 36559960

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  • Title:
    3D Reality-Based Survey and Retopology for Structural Analysis of Cultural Heritage
  • Author: Gonizzi Barsanti, Sara ; Guagliano, Mario ; Rossi, Adriana
  • Subjects: 3D modelling ; 3D survey ; Accuracy ; Approximation ; Architecture ; B spline functions ; Case studies ; Computer-aided design ; Construction ; convergence analysis ; Cultural heritage ; Cultural resources ; Documentation ; FEA ; Finite element analysis ; Historic artifacts ; Mathematical models ; Mechanical properties ; NURBS ; Representations ; retopology ; Software ; Structural analysis ; Surveys ; Workflow
  • Is Part Of: Sensors (Basel, Switzerland), 2022-12, Vol.22 (24), p.9593
  • Description: Cultural heritage's structural changes and damages can influence the mechanical behaviour of artefacts and buildings. The use of finite element methods (FEM) for mechanical analysis is largely used in modelling stress behaviour. The workflow involves the use of CAD 3D models and the use of non-uniform rational B-spline (NURBS) surfaces. For cultural heritage objects, altered by the time elapsed since their creation, the representation created with the CAD model may introduce an extreme level of approximation, leading to wrong simulation results. The focus of this work is to present an alternative method intending to generate the most accurate 3D representation of a real artefact from highly accurate 3D reality-based models, simplifying the original models to make them suitable for finite element analysis (FEA) software. The approach proposed, and tested on three different case studies, was based on the intelligent use of retopology procedures to create a simplified model to be converted to a mathematical one made by NURBS surfaces, which is also suitable for being processed by volumetric meshes typically embedded in standard FEM packages. This allowed us to obtain FEA results that were closer to the actual mechanical behaviour of the analysed heritage asset.
  • Publisher: Switzerland: MDPI AG
  • Language: English
  • Identifier: ISSN: 1424-8220
    EISSN: 1424-8220
    DOI: 10.3390/s22249593
    PMID: 36559960
  • Source: Open Access: DOAJ Directory of Open Access Journals
    Open Access: PubMed Central
    Geneva Foundation Free Medical Journals at publisher websites
    AUTh Library subscriptions: ProQuest Central
    ROAD: Directory of Open Access Scholarly Resources
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