Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Biofidelity"”.
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Development, Calibration, and Validation of a Finite Element Model of the THOR Crash Test Dummy for Aerospace and Spaceflight Crash Safety Analysis
… 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 …
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Epidemiology and Biomechanical Analysis of Facial Fractures
… These corridors were used to evaluate the biofidelity of the FOCUS headform under the same impact conditions. Mathematical models were also created to predict the force and displacement resulting from facial impact. The data contained in this dissertation can be used to determine the risk …
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Biomechanical Responses of Human Surrogates under Various Frontal Loading Conditions with an Emphasis on Thoracic Response and Injury Tolerance
… devices (ATDs) have been developed. However, the biofidelity of these new ATDs must be evaluated, and the mechanisms of injury must be understood in order to accurately predict injury. Evaluating the biomechanical response, injury mechanisms, and injury threshold of the thorax are particularly …
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Development of a biomechanical surrogate for the evaluation of commotio cordis protection
… conditions and none were found to be biofidelic (Biofidelity Rank > 2). A new Sports Specific Thoracic Surrogate (SSTS) was developed and validated using the human response corridors (Biofidelity Rank = 1.2). The SSTS was used to evaluate 70 lacrosse chest protectors from ten (10) manufacturers. …
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Development and Validation of a Finite Element Dummy Lower Limb Model for Under-body blast Applications
… for frontal impacts and demonstrated poor biofidelity in vertical loading experiments. To assess military vehicle safety and make informed improvements to vehicle design, a novel Anthropomorphic Test Device (ATD) was developed and optimized for vertical loading. ATDs, commonly referred to …
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Development of a Deflection Measurement System for the Hybrid III Six-Year Old Biofidelic Abdomen
… using child anthropomorphic test devices, yet biofidelity of the abdomen and pelvis of the current anthropomorphic test device, the Hybrid III 6-year-old, needs improvement. Further, measurement of abdominal deflection is needed for quantification of the degree of submarining and associated …
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Protection of Standing and Seated Pedestrians Using Finite Element Analysis
… can be useful but they are limited by their biofidelity, and often simplify the complex anatomy of the human body for the sake of computational expense. If modeling results are to be taken seriously to investigate standing and seated pedestrian protection, then further model development and …
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Investigating the Thoracic Biomechanical Responses of Rear Seated 50th Percentile Male Anthropomorphic Test Devices and Post Mortem Human Surrogates During Frontal Motor Vehicle Collisions
… of rear seat occupant injuries. However, the biofidelity and injury risk criteria used for these ATDs has only been validated when seated in the front seat. To validate the response and injury risk predictions of existing frontal ATDs in the rear seat it is necessary to generate new …
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Development Of Lower Extremity Injury Criteria And Biomechanical Surrogate To Evaluate Military Vehicle Occupant Injury During An Explosive Blast Event
… biomechanical surrogates were shown to lack biofidelity when impacted at simulated AV blast severities. A THOR-Lx underwent a series of modifications intended to reduce the overall stiffness of the surrogate. Its tibia compliant element was doubled in length to enable additional clearance for …
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The Biomechanics of the Perinatal, Neonatal and Pediatric Cervical Spine: Investigation of the Tensile, Bending and Viscoelastic Response
… human response by age useful in progressing the biofidelity of computational and physical models for child occupant protection.</p>
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Biomechanical Responses of Small Female Human Surrogates during Frontal Sled Tests using a Realistic Vehicle Environment
… a realistic, driver-seat environment to assess biofidelity or ability to predict injury. Therefore, the objective of this study was to compare the responses of the two ATDs and small female PMHS in matched frontal sled tests simulating a realistic driver-seat environment. A 7th-generation Toyota …
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Development and Validation of a Child Finite Element Model for Use in Pedestrian Accident Simulations
… the lower extremity and pelvis models showed biofidelity against PMHS data in component simulations. The stiffness and fracture FE responses showed a good match to PMHS data reported in the literature. The knee model predicted common ligament injuries observed in PMHS tests and a lower bending …
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Submarining and Abdominal Injury for Rear-Seated Mid-Size Males during Frontal Crashes
… occupants in frontal crashes and to assess the biofidelity of two anthropomorphic test devices (ATDs) with respect to submarining response when compared to post-mortem human surrogates (PMHS). Twenty-four frontal crash sled tests were conducted with the THOR-50M and Hybrid III 50th-percentile …