Implementation and validation of the extended Hill-type muscle model with robust routing capabilities in LS-DYNA for active human body models.
Background: In the state of the art finite element AHBMs for car crash analysis in the LS-DYNA software material named *MAT_MUSCLE (*MAT_156) is used for active muscles modeling. It has three elements in parallel configuration, which has several major drawbacks: restraint approximation of the physic...
| Publicado en: | BioMedical Engineering OnLine Vol. 16; no. 1; pp. 1 - 29 |
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| Autores principales: | , , , , , |
| Formato: | equations & formulas pictorial research tables/charts Journal Article |
| Publicado: |
BioMed Central
9/2/2017
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=124952151&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 124952151 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 1475925X 1CGX jtl: BioMedical Engineering OnLine issn: 1475925X maglogo: N pubinfo: dt: 9/2/2017 vid: 16 iid: 1 pid: 24147 pub: BioMed Central artinfo: ui: 124952151 124952151 NLM28865494 124952151 10.1186/s12938-017-0399-7 NLM28865494 124952151 ppf: 1 ppct: 28 formats: tig: atl: Implementation and validation of the extended Hill-type muscle model with robust routing capabilities in LS-DYNA for active human body models. aug: au: Kleinbach, Christian Martynenko, Oleksandr Promies, Janik Haeufle, Daniel F. B. Fehr, Jörg Schmitt, Syn affil: Institute for Engineering and Computational Mechanics, University of Stuttgart, Pfaffenwaldring 9, 70569 Stuttgart, Germany sug: subj: Models, Biological Muscles Physiology Software Swine Isometric Contraction Finite Element Analysis Animal Studies Questionnaires ab: Background: In the state of the art finite element AHBMs for car crash analysis in the LS-DYNA software material named *MAT_MUSCLE (*MAT_156) is used for active muscles modeling. It has three elements in parallel configuration, which has several major drawbacks: restraint approximation of the physical reality, complicated parameterization and absence of the integrated activation dynamics. This study presents implementation of the extended four element Hill-type muscle model with serial damping and eccentric force-velocity relation including [Formula: see text] dependent activation dynamics and internal method for physiological muscle routing.Results: Proposed model was implemented into the general-purpose finite element (FE) simulation software LSDYNA as a user material for truss elements. This material model is verified and validated with three different sets of mammalian experimental data, taken from the literature. It is compared to the *MAT_MUSCLE (*MAT_156) Hill-type muscle model already existing in LS-DYNA, which is currently used in finite element human body models (HBMs). An application example with an arm model extracted from the FE ViVA OpenHBM is given, taking into account physiological muscle paths.Conclusion: The simulation results show better material model accuracy, calculation robustness and improved muscle routing capability compared to *MAT_156. The FORTRAN source code for the user material subroutine dyn21.f and the muscle parameters for all simulations, conducted in the study, are given at https://zenodo.org/record/826209 under an open source license. This enables a quick application of the proposed material model in LS-DYNA, especially in active human body models (AHBMs) for applications in automotive safety. pubtype: Academic Journal doctype: equations & formulas pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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