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 20 of 21 for “"biofidelic"”.
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Biofidelic Piezoresistive Sandwich Composites
<p>Silicone based biofidelic surrogates are being used in many biomedical applications; e.g. to understand the body injury mechanisms, evaluate protective equipment like helmets and armors. Apart from matching the mechanical behavior of bodily tissues, there is an increasing requirement for these …
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Development of a biofidelic cranial bone surrogate using additive manufacturing
Cranial bone surrogates are widely used in many applications, including mechanical, impact and blast, and biomedical testing. Such surrogate models often attempt to mimic the properties of bone to achieve best results. This research focuses on using additive manufacturing to develop a 3D printed …
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DESIGN AND DEVELOPMENT OF BIOFIDELIC SIMULATION TRAINERS FOR PEDIATRIC KNEE EFFUSION ASSESSMENT
… systematic process for designing and validating biofidelic training models using small-scale manufacturing techniques. The problem addressed was clinicians' lack of exposure to pediatric populations and opportunities to practice the patellar tap test. The tap test is a subjective physical …
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Development of a Deflection Measurement System for the Hybrid III Six-Year Old Biofidelic Abdomen
… and associated potential injury risk. A biofidelic abdomen for the Hybrid III 6-year-old dummy is being developed by the Ford Motor Company. A practical measurement system for the biofidelic abdominal insert has been developed and demonstrated for three dimensional determination of …
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The Development and Validation of a Biofidelic Synthetic Eye for the Facial and Ocular CountermeasUre Safety (FOCUS) Headform
There are over 1.9 million eye injuries per year in the United States with over 30,000 patients left blind in at least one eye as a result of trauma. Some of the most severe eye injuries can occur in automobile accidents and from sports related impacts. Eye injuries in the military environment are …
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Large-scale simulation of the mechanical response of porcine cranial bone
Biofidelic computer models are an invaluable tool in the understanding injury biomechanics. One crucial feature of these models is the ability to accurately capture the response of the individual tissues comprising the anatomy under study. In this thesis, we presented a simulation-based approach to …
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Computational modeling of trabecular bone in lower extremity injuries due to impact
… scale parallel finite element simulations on biofidelic and biomimetic morphological models of trabecular bone. The biofidelic model was developed using an image-based tetrahedral meshing approach on [mu]CT images, courteously provided by Niebur's group at Notre Dame University, of a human …
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Vibrational Characteristics of Dummy Headforms
… human head values to determine which has a more biofidelic vibrational response; to quantify the frequency response of different baseball catcher's masks and assess their abilities to limit vibrations transferred to the headforms; and to compare kinematic and frequency responses between headforms …
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Development of a biomechanical surrogate for the evaluation of commotio cordis protection
… to be tested for efficacy. Currently there is no biofidelic surrogate to serve this purpose. In order to test equipment to a given standard of protection, a biomechanical surrogate is needed that models the human response to impacts observed in sports. The goal of this dissertation was to develop …
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Development and Validation of a Brain Phantom for Therapeutic Cooling Devices
… within 3.5% at physiological flow, suggesting a biofidelic thermal response. The phantom will be used as a platform for future studies of thermally-mediated therapies applied to the cerebral cortex.
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Modular Use of Human Body Models of Various Complexities in the Head and Thoraco-Abdominal Regions
… HBMs have developed and become more complex and biofidelic. They have also become more computationally expensive which may restrict usage from individuals with limited computational power. This motivated the development of faster running simplified HBMs similar to the detailed models, but …
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Quantifying the Kinematics of Injury Biomechanics: Several Applications Incorporating Human Volunteers and Surrogates
… development of computational models and biofidelic anthropomorphic test devices (ATDs) necessitates benchmarking of current surrogates and further analysis of an occupant's biomechanical response in automobile collisions. This thesis presents data from low-speed frontal sled tests …
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Biomechanical Responses of Human Surrogates under Various Frontal Loading Conditions with an Emphasis on Thoracic Response and Injury Tolerance
… MVCs, new safety restraint technologies and more biofidelic anthropomorphic test 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 …
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Computational modeling of blast-induced traumatic brain injury
… the blast response of the head. To that end, a biofidelic computational model of the human head consisting of 11 distinct structures was developed from high-resolution medical imaging data. The model, known as the DVBIC/MIT Full Head Model (FHM), was subjected to blasts with incident …
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Probabilistic Analysis of the Material and Shape Properties for Human Liver
… this study could help in the development of more biofidelic human models, which may provide a better understanding of injury mechanisms of the liver during automobile collisions.
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Induced Damping And Its Relationship To Beneficial Energy Harvesting In Dielectric Elastomers With Application To Walking
… the DE materials in uniaxial stretching and on a biofidelic knee model; and (3) investigation of the kinetic effects of beneficial DE energy harvesting during walking. Our empirical modeling leads to a more comprehensive constitutive relation for DE materials and allows a means to directly assess …
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Development Of Lower Extremity Injury Criteria And Biomechanical Surrogate To Evaluate Military Vehicle Occupant Injury During An Explosive Blast Event
… to develop lower extremity injury criteria and biofidelic biomechanical surrogate to evaluate military occupant injury during an AV (axial) blast event. </p> <p>Eighteen lower extremity post mortem human specimens (PMHS) were instrumented with an implantable load cell and strain gages and …
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Development and Validation of Human Body Finite Element Models for Pedestrian Protection
… the detailed pedestrian models and showed high-biofidelic responses against the PMHS test data. After model development and validation, the effect of pre-impact variables, such as anthropometry, pedestrian posture, and vehicle type in CPC impacts were investigated in different impact scenarios. …
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Simulated Automobile and Rotary-Wing Aircraft Impacts: Dynamic Neck Response after Surgical Treatment for Cervical Spondylosis
… conducted experimental sled test. A more biofidelic head and neck response was produced with the human body model, including realistic changes in neck curvature. Additional simulations were conducted with the human body model to investigate the neck response after cervical arthroplasty of …
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Study of Occupant Model Capability to Quantify Injury Risk for eVTOL Vehicles
… to evolve, leading to a host of newer and more biofidelic ATDs such as the Test Device for Human Occupant Restraint (THOR). Increased computing power has also allowed for detailed computational human body models (HBMs) to be created, such as the Global Human Body Model Consortium (GHBMC). This …
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