Application of Radial Basis Function Methods in the Development of a 95th Percentile Male Seated FEA Model

Human body finite element models (FEMs) are a valuable tool in the study of injury biomechanics. However, the traditional model development process can be time-consuming. Scaling and morphing an existing FEM is an attractive alternative for generating morphologically distinct models for further stud...

Celý popis

Uloženo v:
Podrobná bibliografie
Vydáno v:Stapp car crash journal Ročník 58; s. 361
Hlavní autoři: Vavalle, Nicholas A, Schoell, Samantha L, Weaver, Ashley A, Stitzel, Joel D, Gayzik, F Scott
Médium: Journal Article
Jazyk:angličtina
Vydáno: United States The Stapp Association 01.11.2014
Témata:
Abdomen
Accidents, Traffic
Anthropometry - methods
Biomechanical Phenomena - physiology
Biomechanics
Brain research
Computer Simulation
Consortia
Females
Finite Element Analysis
Geometry
Human body
Humans
Male
Methods
Models, Biological
Studies
Time Factors
United States
Visible Human Projects
Wounds and Injuries - etiology
Wounds and Injuries - physiopathology
United States
ISSN:1532-8546
On-line přístup:Získat plný text
Tagy: Přidat tag
Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!
Popis
Shrnutí:Human body finite element models (FEMs) are a valuable tool in the study of injury biomechanics. However, the traditional model development process can be time-consuming. Scaling and morphing an existing FEM is an attractive alternative for generating morphologically distinct models for further study. The objective of this work is to use a radial basis function to morph the Global Human Body Models Consortium (GHBMC) average male model (M50) to the body habitus of a 95th percentile male (M95) and to perform validation tests on the resulting model. The GHBMC M50 model (v. 4.3) was created using anthropometric and imaging data from a living subject representing a 50th percentile male. A similar dataset was collected from a 95th percentile male (22,067 total images) and was used in the morphing process. Homologous landmarks on the reference (M50) and target (M95) geometries, with the existing FE node locations (M50 model), were inputs to the morphing algorithm. The radial basis function was applied to morph the FE model. The model represented a mass of 103.3 kg and contained 2.2 million elements with 1.3 million nodes. Simulations of the M95 in seven loading scenarios were presented ranging from a chest pendulum impact to a lateral sled test. The morphed model matched anthropometric data to within a rootmean square difference of 4.4% while maintaining element quality commensurate to the M50 model and matching other anatomical ranges and targets. The simulation validation data matched experimental data well in most cases.
Bibliografie:SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 14
ObjectType-Article-1
ObjectType-Feature-2
content type line 23
ISSN:1532-8546
DOI:10.4271/2014-22-0013