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dc.contributor.authorPutnam, Jacob Breeceen
dc.date.accessioned2014-09-18T08:02:33Zen
dc.date.available2014-09-18T08:02:33Zen
dc.date.issued2014-09-17en
dc.identifier.othervt_gsexam:3402en
dc.identifier.urihttp://hdl.handle.net/10919/50522en
dc.description.abstractAnthropometric test devices (ATDs), commonly referred to as crash test dummies, are tools used to conduct aerospace and spaceflight safety evaluations. Finite element (FE) analysis provides an effective complement to these evaluations. In this work a FE model of the Test Device for Human Occupant Restraint (THOR) dummy was developed, calibrated, and validated for use in aerospace and spaceflight impact analysis. A previously developed THOR FE model was first evaluated under spinal loading. The FE model was then updated to reflect recent updates made to the THOR dummy. A novel calibration methodology was developed to improve both kinematic and kinetic responses of the updated model in various THOR dummy certification tests. The updated THOR FE model was then calibrated and validated under spaceflight loading conditions and used to asses THOR dummy biofidelity. Results demonstrate that the FE model performs well under spinal loading and predicts injury criteria values close to those recorded in testing. Material parameter optimization of the updated model was shown to greatly improve its response. The validated THOR-FE model indicated good dummy biofidelity relative to human volunteer data under spinal loading, but limited biofidelity under frontal loading. The calibration methodology developed in this work is proven as an effective tool for improving dummy model response. Results shown by the dummy model developed in this study recommends its use in future aerospace and spaceflight impact simulations. In addition the biofidelity analysis suggests future improvements to the THOR dummy for spaceflight and aerospace analysis.en
dc.format.mediumETDen
dc.publisherVirginia Techen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectfinite element modelingen
dc.subjectimpact biomechanicsen
dc.subjectdummy modelen
dc.subjectoptimizationen
dc.subjectsensitivity analysis.en
dc.titleDevelopment, Calibration, and Validation of a Finite Element Model of the THOR Crash Test Dummy for Aerospace and Spaceflight Crash Safety Analysisen
dc.typeThesisen
dc.contributor.departmentBiomedical Engineeringen
dc.description.degreeMaster of Scienceen
thesis.degree.nameMaster of Scienceen
thesis.degree.levelmastersen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.disciplineBiomedical Engineeringen
dc.contributor.committeechairUntaroiu, Costin D.en
dc.contributor.committeememberAnnett, Martin S.en
dc.contributor.committeememberHardy, Warren Nelsonen
dc.contributor.committeememberDuma, Stefan M.en


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