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Autordc.contributor.authorFitton, Laura 
Autordc.contributor.authorProa, Miguel 
Autordc.contributor.authorRowland, Charlie 
Autordc.contributor.authorToro Ibacache, Viviana 
Autordc.contributor.authorO'Higgins, Paul 
Fecha ingresodc.date.accessioned2015-09-08T18:00:37Z
Fecha disponibledc.date.available2015-09-08T18:00:37Z
Fecha de publicacióndc.date.issued2015
Cita de ítemdc.identifier.citationThe Anatomical Record 298:107–121 (2015)en_US
Identificadordc.identifier.otherDOI: 10.1002/ar.23075
Identificadordc.identifier.urihttps://repositorio.uchile.cl/handle/2250/133482
Nota generaldc.descriptionArtículo de publicación ISIen_US
Resumendc.description.abstractIn recent years finite element analysis (FEA) has emerged as a useful tool for the analysis of skeletal form-function relationships. While this approach has obvious appeal for the study of fossil specimens, such material is often fragmentary with disrupted internal architecture and can contain matrix that leads to errors in accurate segmentation. Here we examine the effects of varying the detail of segmentation and material properties of teeth on the performance of a finite element model of a Macaca fascicularis cranium within a comparative functional framework. Cranial deformations were compared using strain maps to assess differences in strain contours and Procrustes size and shape analyses, from geometric morphometrics, were employed to compare large scale deformations. We show that a macaque model subjected to biting can be made solid, and teeth altered in material properties, with minimal impact on large scale modes of deformation. The models clustered tightly by bite point rather than by modeling simplification approach, and fell out as being distinct from another species. However localized fluctuations in predicted strain magnitudes were recorded with different modeling approaches, particularly over the alveolar region. This study indicates that, while any model simplification should be undertaken with care and attention to its effects, future applications of FEA to fossils with unknown internal architecture may produce reliable results with regard to general modes of deformation, even when detail of internal bone architecture cannot be reliably modeled.en_US
Idiomadc.language.isoen_USen_US
Publicadordc.publisherWiley-Blackwellen_US
Tipo de licenciadc.rightsAtribución-NoComercial-SinDerivadas 3.0 Chile*
Link a Licenciadc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/*
Palabras clavesdc.subjectFossil homininsen_US
Palabras clavesdc.subjectVirtual reconstructionen_US
Palabras clavesdc.subjectSensitivity studyen_US
Palabras clavesdc.subjectModel buildingen_US
Palabras clavesdc.subjectCranial deformationen_US
Palabras clavesdc.subjectProcrustes size and shape analysisen_US
Palabras clavesdc.subjectFinite element analysis
Palabras clavesdc.subjectGeometric morphometrics
Títulodc.titleThe Impact of Simplifications on the Performance of a Finite Element Model of a Macaca fascicularis Craniumen_US
Tipo de documentodc.typeArtículo de revista


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