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Evaluating The Brain-Muscle Connectivity Of Cyclic Ankle Pedaling Movement In A Clinical Setting, Matthew K. Shanosky Jan 2026

Evaluating The Brain-Muscle Connectivity Of Cyclic Ankle Pedaling Movement In A Clinical Setting, Matthew K. Shanosky

Graduate Studies Theses and Dissertations 2026

Clinical neurorehabilitation requires objective biomarkers to accurately detect and monitor neuromotor impairments. While traditional metrics are favored for their efficiency and minimal equipment demands, they typically rely on subjective observation and lack physiological resolution. High-resolution electrophysiological technologies, such as electroencephalography (EEG) and electromyography (EMG), offer objective insights into nervous system dynamics; however, prolonged data acquisition times have hindered their translation into frontline clinics. To bridge this translational gap, this study developed a time-efficient experimental paradigm designed for rapid clinical deployment. Healthy participants completed two initial resting baseline trials before performing an externally paced, dynamic, cyclic ankle movement task utilizing simulation …


Revisiting The Foundation Of Strategic Core Theory: Informal Roles And Teamwork Roles In Work Team Centrality, Allen Thomas Shorey Jan 2026

Revisiting The Foundation Of Strategic Core Theory: Informal Roles And Teamwork Roles In Work Team Centrality, Allen Thomas Shorey

Graduate Studies Theses and Dissertations 2026

Strategic core theory makes a distinction between roles within a team that are central to the team’s workflow (i.e., core roles) and those that are not central (i.e., non-core roles) (Humphrey et al., 2009). This line of work has shown that attributes, such as job-related skill of core team members, were more predictive of team performance than those of non-core members. However, this line of work has primarily examined core and non-core roles as defined by formal taskwork roles. In this thesis, I examine patient care teams and management simulation teams with the principal conviction that (a) informal roles and …


Examining Principals' Perceptions Of Their Preparedness To Lead In Title I Schools, Tiffany Roebuck Jan 2026

Examining Principals' Perceptions Of Their Preparedness To Lead In Title I Schools, Tiffany Roebuck

Graduate Studies Theses and Dissertations 2026

Principals serving in Title I schools face complex instructional, organizational, cultural, and community related demands that require specialized leadership preparation and support.  The purpose of this qualitative phenomenological study was to explore the lived experience of principals serving in urban Title I schools regarding their preparedness, supports, challenges, and successes as instructional leaders. The study also examined principals' perceptions of culturally proficient leadership and principal preparation program attributes considered essential for leadership readiness in high-needs school settings. Guided by the Culturally Responsive School Leadership (CRSL) framework, data were collected through semi-structured interviews with 10 principals serving in urban Title I …


Federated Learning In The Era Of Foundation Models, Guangyu Sun Jan 2026

Federated Learning In The Era Of Foundation Models, Guangyu Sun

Graduate Studies Theses and Dissertations 2026

The emergence of large-scale foundation models has reshaped computer vision and multi-modal learning, but their substantial computational and communication demands pose significant challenges for deployment in federated learning (FL) systems. Federated learning enables collaborative model training across decentralized clients without sharing raw data, offering strong privacy guarantees. However, adapting foundation models in FL remains difficult due to communication bottlenecks, heterogeneous data distributions, limited device resources, and scarce labeled data. This dissertation presents a unified line of research that addresses these challenges through four complementary frameworks, progressively advancing the efficiency, personalization, and practicality of foundation model adaptation in federated settings.

First, …


The Reliability, Validity, And Sensitivity Of Physical Working Capacity At The Pain Intensity Threshold, Danielle A. Sterner Jan 2026

The Reliability, Validity, And Sensitivity Of Physical Working Capacity At The Pain Intensity Threshold, Danielle A. Sterner

Graduate Studies Theses and Dissertations 2026

The purpose of this dissertation was to evaluate the reliability, validity, and responsiveness to training intervention of a pain-anchored capacity threshold, the Physical Working Capacity at the Pain Intensity Threshold (PWCPIT), as a practical submaximal marker of endurance-related exercise tolerance. Study one examined the test-retest reliability of pain-based, perceptual, and physiological physical working capacity measures in recreationally active men using a standardized multi-bout cycling protocol, with pain intensity responses demonstrating strong reproducibility and low measurement error, supporting the stability of pain-anchored thresholds when standardized procedures are applied. Study two evaluated the validity of PWCPIT by examining pain …


Threads Of The Past: Exploration Of Banal Medievalisms In Russia's Invasion Of Ukraine, Evan Garrett Wallace Jan 2026

Threads Of The Past: Exploration Of Banal Medievalisms In Russia's Invasion Of Ukraine, Evan Garrett Wallace

Graduate Studies Theses and Dissertations 2026

This dissertation examines how medieval historical narratives circulate within contemporary Western digital discourse surrounding Russia’s invasion of Ukraine. Russian political rhetoric has frequently invoked the medieval polity of Kyivan Rus’ to assert civilizational continuity between the medieval past and the modern Russian state. While these claims have been widely discussed in political and media contexts, less attention has been given to how such narratives appear within everyday online discourse. This study investigates how medieval references are mobilized, circulated, and interpreted within social media environments during the early conflict.

The research draws on a dataset of approximately 160,000 tweets collected from …


Unmasking Pentastomes: Generating Genomic Resources For Enigmatic Parasites, Stephanie Lyn Villella Jan 2026

Unmasking Pentastomes: Generating Genomic Resources For Enigmatic Parasites, Stephanie Lyn Villella

Graduate Studies Theses and Dissertations 2026

The introduction of invasive species can disrupt ecosystems not only through competition and predation but also by introducing novel pathogens to naïve host populations. In the southeastern United States, the invasive Burmese python (Python bivittatus) has been implicated in the introduction of the pentastome parasite Raillietiella orientalis, which has been associated with increased parasite burdens and mortality in native snakes. Despite their ecological significance and ancient evolutionary history, pentastomes remain poorly represented in genomic databases, limiting efforts to understand their evolutionary origins, host–parasite interactions, and mechanisms underlying parasite emergence. This study addresses these gaps by generating the …


Dynamics Of Household Food Insecurity Vulnerability: Examining Health, Functional Limitations, And Income Stability, Renita Washburn Jan 2026

Dynamics Of Household Food Insecurity Vulnerability: Examining Health, Functional Limitations, And Income Stability, Renita Washburn

Graduate Studies Theses and Dissertations 2026

Household food insecurity is a multidimensional issue affecting millions of households in the United States. While research has established that low income and poor health or functional limitations can increase the risk of food insecurity, current approaches do not fully capture these dynamic processes to identify long-term vulnerability. Specifically, income-based measures rely on static thresholds that miss instability, potentially underestimating risk. Gaps also remain in understanding persistent food insecurity, including how functional limitations (difficulties with activities like bathing, shopping, or managing finances) are associated with insecurity over time. These functional limitations can impact both economic factors (such as the ability …


Resources And Coping Strategies In Adverse Work Situations: A Person-Centered Approach, Chad Yagey Jan 2026

Resources And Coping Strategies In Adverse Work Situations: A Person-Centered Approach, Chad Yagey

Graduate Studies Theses and Dissertations 2026

The resilience process model highlights an approach to how people mobilize their resources to cope and positively adapt in the face of adversity. Leveraging Conservation of Resources (COR) theory and the Work Home Resources Model (WHRM), I aim to uncover the extent to which resilience capacity (resources) and resilience enactment (coping) influence outcomes of resilience, offering one of the first empirical tests of the resilience process model. Specifically, COR theory posits that the more psychological resources someone has, the more successful they are in coping. I challenge this notion by examining whether specific profiles of the combination of resources available …


Constrained Freedom: Economic Strain, Time Control, And Perceived Autonomy In Life, Lorena E. Black Jan 2026

Constrained Freedom: Economic Strain, Time Control, And Perceived Autonomy In Life, Lorena E. Black

High Impact Practices Student Showcase Spring 2026

Autonomy is often framed as an individual capacity rooted in personal choice, discipline, and self-determination, with dominant cultural narratives positioning freedom as something earned through effort and responsibility. This study challenges that assumption by examining autonomy as a socially structured and unequally distributed condition shaped by material and temporal constraints. Drawing on classical and contemporary sociological frameworks—including Marx’s analysis of labor and material dependence, Weber’s account of disciplined rationality, and Antonio Gramsci’s concept of cultural hegemony—this research positions perceived autonomy as an outcome produced through economic and institutional arrangements rather than solely through individual will. While existing literature has extensively …


Helping The Whole Heart, Aashna A. Shah Jan 2026

Helping The Whole Heart, Aashna A. Shah

High Impact Practices Student Showcase Spring 2026

My service-learning project, “Helping the Whole Heart,” focuses on my second semester volunteering with Shepherd’s Hope, a nonprofit organization that provides free healthcare to uninsured and underinsured adults in Central Florida. The purpose of my project was to support the clinic while learning more about healthcare access, service, and community responsibility. During my shifts, I helped greet patients, check them in, prepare charts, organize paperwork, and assist the clinic team wherever I was needed. Through this experience, I learned that healthcare is about more than just medical treatment. It is also about patience, communication, compassion, and making patients feel respected. …


The Strength Of The Association Between Obesity And Mortality From Diabetes Among Adults In Florida, Diego A. Garcia, Jacob Bleasdale Phd,Ms,Ches, Cristobal Cintron Msc, Drph Jan 2026

The Strength Of The Association Between Obesity And Mortality From Diabetes Among Adults In Florida, Diego A. Garcia, Jacob Bleasdale Phd,Ms,Ches, Cristobal Cintron Msc, Drph

High Impact Practices Student Showcase Spring 2026

Background: Diabetes mellitus is a leading cause of preventable death across the United States, with obesity being directly tied to this condition as one of its most significant and modifiable risk factors. Although national-level evidence strongly supports this association, Florida-specific population data is still limited.

Methods: County-level adult obesity prevalence and age-adjusted diabetes mortality data were obtained directly from the Florida Health CHARTS website (FL DOH,2024) for all Florida counties. The Pearson correlation (r) was used to evaluate the strength of association between the variables

Results: A statistically significant, moderate-positive correlation was found between adult obesity rates …


Tracing Evolution Through Teeth: Dental Morphology Of The Lagoa Santa Fossil Population, Kelsey Aaron Jan 2026

Tracing Evolution Through Teeth: Dental Morphology Of The Lagoa Santa Fossil Population, Kelsey Aaron

High Impact Practices Student Showcase Spring 2026

This study examines dental morphological variation among early South American populations, focusing on individuals from the Lagoa Santa region and coastal shellmound (sambaqui) populations in Brazil. Dental nonmetric traits were recorded using the Arizona State University Dental Anthropology System (ASUDAS), a standardized method for assessing crown and root morphology across populations (Qaqa et al., 2026). These traits are highly heritable and largely unaffected by environmental pressures, making them valuable for reconstructing population history, gene flow, and ancestry (Tinoco et al., 2016). Comparative analysis incorporates global dental variation and reference patterns associated with archaic hominins, including Neanderthals. Traits such as increased …


Analysis Of Azithromycin-Prevention In Labor Use Study, Emily Martinez, Roldine Questel, Willow Baldwin, Emma Coffman Jan 2026

Analysis Of Azithromycin-Prevention In Labor Use Study, Emily Martinez, Roldine Questel, Willow Baldwin, Emma Coffman

High Impact Practices Student Showcase Spring 2026

This group project was developed for the Health Sciences Seminar course. The purpose of this project was to analyze a clinical trial which evaluated the effectiveness of azithromycin in preventing pregnancy-related maternal sepsis or death. Azithromycin is a commonly prescribed, broad-spectrum oral antibiotic that is inexpensive and widely accessible; It has antibacterial and anti-inflammatory properties and may help prevent infection when used prophylactically. The study’s primary measurable outcomes were instances of maternal and neonatal death or sepsis within 6 weeks (42 days) postpartum. Based on the results, azithromycin was effective in preventing instances of sepsis maternally, but not within neonates. …


Effects Of Kratom Mixture On Cell Death In Cos-7 Cells Using Immunofluorescence, Hoa A. Nguyen Jan 2026

Effects Of Kratom Mixture On Cell Death In Cos-7 Cells Using Immunofluorescence, Hoa A. Nguyen

High Impact Practices Student Showcase Spring 2026

The purpose of this project was to visualize the cellular impact of Kratom (Mitragyna speciosa), a supplement commonly utilized for pain management and opioid withdrawal. The project investigated the effects of a 5% Kratom mixture on COS-7 monkey kidney cells. By using immunofluorescence, the cytoskeleton could be observed, and we can determine if Kratom could result in cellular failure.

In the immunofluorescence protocol, the cells were fixed in a methanol based solution to preserve position, while also permeabilizing the membranes with Triton X-100, and applying specific fluorophores. We used indirect staining for Tubulin (Red, Goat anti-mouse 568), direct staining for …


Investigating The Association Between Polycystic Ovary Syndrome (Pcos) And Idiopathic Intracranial Hypertension (Iih): A Cross-Sectional Analysis, Savannah L. Adams Jan 2026

Investigating The Association Between Polycystic Ovary Syndrome (Pcos) And Idiopathic Intracranial Hypertension (Iih): A Cross-Sectional Analysis, Savannah L. Adams

Graduate Studies Theses and Dissertations 2026

Polycystic ovary syndrome (PCOS) and idiopathic intracranial hypertension (IIH) are chronic conditions that disproportionately affect women of reproductive age and share several metabolic risk factors, including obesity, insulin resistance, and hormonal dysregulation. Despite growing clinical interest in a potential relationship between these conditions, limited research has examined awareness, knowledge, symptom presentation, and barriers to healthcare among young adult populations. The purpose of this study was to investigate awareness, knowledge, perceived healthcare barriers, and potential associations between PCOS and IIH among college-aged individuals. A cross-sectional survey was administered to students aged 18-25 at the University of Central Florida through classroom recruitment …


Understanding The Potential Biogeochemical Effects Of Alternative Restoration Materials: A Study Of Basalt And Other Materials, Cadie L. Barnes Jan 2026

Understanding The Potential Biogeochemical Effects Of Alternative Restoration Materials: A Study Of Basalt And Other Materials, Cadie L. Barnes

Graduate Studies Theses and Dissertations 2026

Concern over the effects of microplastics on estuarine ecosystems and public health has prompted many restoration practitioners to switch from plastic materials to more “natural” substrates. These natural (BESE-biopolymer, cement-jute structures) and non-plastic (basalt fiber) materials should not contain harmful substances; however, their chemical composition is unknown. Natural materials may degrade faster in subtropical environments and release nutrients into surrounding waters, which is concerning for eutrophic restoration areas. Basalt fiber bags, made from melted basalt rock spun into fibers, have not been evaluated for biogeochemical impacts within estuaries. To address this knowledge gap, two field experiments and two laboratory experiments …


Learning-Based Optimization For Collaborative Truck-Drone Routing And Scheduling, Ahmad A. Bany Abdelnabi Jan 2026

Learning-Based Optimization For Collaborative Truck-Drone Routing And Scheduling, Ahmad A. Bany Abdelnabi

Graduate Studies Theses and Dissertations 2026

Modern delivery networks increasingly rely on innovative technologies such as drones working alongside trucks to meet rising demands for fast and efficient last–mile transportation. Hybrid truck–drone delivery offers strong potential, but its effectiveness depends on careful synchronization between trucks and drones. Although drones provide fast, direct travel, their limited endurance and the need to coordinate launch and recovery with trucks create tightly coupled routing and scheduling interactions. Poor dispatch decisions can cause truck waiting, reduce parallelism, and increase mission completion time. These challenges motivate decision frameworks that explicitly model synchronization and develop scalable methods for coordinated truck–drone operations. This dissertation …


Reclaiming The Self: A Visual Narrative Of A Process Of Individuation Through Artistic Practice, Stacie Becker Jan 2026

Reclaiming The Self: A Visual Narrative Of A Process Of Individuation Through Artistic Practice, Stacie Becker

Graduate Studies Theses and Dissertations 2026

Reclaiming the Self: A Visual Narrative of a Process of Individuation Through Artistic Practice features a multidisciplinary practice that uses visual narrative, metaphor, and symbolism to reconcile the complex intersections of internal and external identity-shaping experiences, informed by lived experience as a woman. Working across painting, mixed media, printmaking, book arts, sculpture, and restorative medical tattooing, the artist dissects the tension between internal identity and external expectations, addressing themes of gender roles, relationships, trauma, and agency. Various artistic methods serve not only as a process but also as a parallel for reclaiming, healing, and restoring an authentic, unashamed sense of …


'But George Floyd Wasn't A Saint': A Critical Discourse Analysis Pre And Post George Floyd, Raya Berkley-Jacobs Jan 2026

'But George Floyd Wasn't A Saint': A Critical Discourse Analysis Pre And Post George Floyd, Raya Berkley-Jacobs

Graduate Studies Theses and Dissertations 2026

May 25, 2020, George Floyd died at the hands of former police officer Derek Chauvin after he placed his knee on George Floyd’s neck for 8 minutes and 46 seconds. His death sparked outrage, protests, and calls for accountability, justice, and reform. This study addresses the impact of George Floyd’s death as a focusing event that created a policy window under which federal legislation was introduced as a response to his death. Drawing on Punctuated Equilibrium Theory and Social Construction Theory, the study utilizes a critical discourse analysis to test how the death of George Floyd impacted the amount and …


Do Fair Schedules Matter? Work-Home Conflict And Justice In Emergency Medicine, Maresca J. Brand Jan 2026

Do Fair Schedules Matter? Work-Home Conflict And Justice In Emergency Medicine, Maresca J. Brand

Graduate Studies Theses and Dissertations 2026

Emergency physicians work in a high-demand environment requiring irregular, around-the-clock schedules, which can contribute to elevated work-home conflict and burnout. While previous research has focused on objective schedule characteristics such as length of shift or time of day worked, less attention has been given to how emergency physicians perceive the fairness of the scheduling process itself. Drawing on Work-Home Resources Theory and Personal Resource Allocation Theory, this study examines whether perceptions of schedule justice influence work-home conflict via schedule satisfaction. I propose that perceived fairness in schedule creation functions as a contextual resource that shapes whether a schedule is experienced …


Club Sport Injury Rates, Injury Characteristics, Functional Movement Screen Relationships, And Impact Of Core Training, Rebecca Carson Jan 2026

Club Sport Injury Rates, Injury Characteristics, Functional Movement Screen Relationships, And Impact Of Core Training, Rebecca Carson

Graduate Studies Theses and Dissertations 2026

It is estimated that over 10% of college students take part in club sports at their college or university, yet sport-related injuries are a common consequence of participation. The Functional Movement Screen™ (FMS™) is a movement analysis tool that identifies functional deficits and asymmetries and is widely applied in athletic settings to assess injury risk and inform rehabilitation and injury prevention programs. Core strength and stability play a crucial role in functional movement quality and may even reduce risk of injury and improve sport performance. This dissertation aimed to establish club sport injury rates and characteristics for club men’s ice …


Applying Harm Reduction To Binge-Eating Disorder: Protective Behavioral Strategies Against Uncontrolled Eating, Emily Burr Jan 2026

Applying Harm Reduction To Binge-Eating Disorder: Protective Behavioral Strategies Against Uncontrolled Eating, Emily Burr

Graduate Studies Theses and Dissertations 2026

Binge-eating disorder (BED) is a highly deleterious mental illness, with ramifications ranging from psychological impairment to premature mortality. Despite the awareness of intervention urgency, treatment strategies to manage BED have limited long-term efficacy. Therefore, it is of high necessity to illuminate other methods of reducing the potential effects of binge eating (BE), either by combatting severity or frequency of the behavior. Protective behavioral strategies (PBS), first identified in the substance use field, are methods by which an individual attenuates potential harm from a behavior without expectation of abstaining (i.e., a harm reduction approach). Given high likelihood of treatment relapse for …


Physical Activity And Health Outcomes In Children With Dyslexia During Summer Versus School Months, Tina J. Glatz Jan 2026

Physical Activity And Health Outcomes In Children With Dyslexia During Summer Versus School Months, Tina J. Glatz

Graduate Studies Theses and Dissertations 2026

Children in the United States continue to experience rising rates of overweight and obesity. Children with learning disabilities are twice as likely to have obesity than typically developing peers, partly due to difficulties with motor skills and behavior regulation. The purpose of this study was to examine and compare differences in health outcomes and physical activity (PA) during summer versus school months in children with dyslexia, using a within- subject study design.

At three timepoints (May, August, December 2025), children’s height, weight, and fitness were measured via a portable stadiometer, dual-frequency foot-to-foot bioelectric impedance device, and Progressive Aerobic Cardiovascular Endurance …


Increasing Actuation Authority And Bandwidth For Aeromechanics Testing: A Piezoelectric-Based Approach, Sydney A. Giannuzzi Jan 2026

Increasing Actuation Authority And Bandwidth For Aeromechanics Testing: A Piezoelectric-Based Approach, Sydney A. Giannuzzi

Graduate Studies Theses and Dissertations 2026

Flutter in turbomachinery poses significant risks to aerospace systems, requiring accurate identification of flutter boundaries to ensure operational safety. Traditional binary “flutter / no flutter” testing methods provide limited data without error margins. Aeromechanical Identification Methodology (AIM) offers a safer alternative by mapping aeromechanical damping across operational conditions using non-contact excitation. However, current AIM actuators are constrained to excitation frequencies below 500 Hz, limiting their effectiveness and applicability. To bridge this gap, this research analyzed and validated performance of a novel piezoelectric-based oscillatory flow injection valve (NOVA) designed to deliver high-bandwidth, high-authority actuation for expanded flutter boundary mapping.

NOVA was …


Centered A Story Of Family And Compassion In The Face Of Parkinson's Disease, Savannah Hill Jan 2026

Centered A Story Of Family And Compassion In The Face Of Parkinson's Disease, Savannah Hill

Graduate Studies Theses and Dissertations 2026

Centered is a three-dimensional (3D) animated short film that explores the topic of parental illness and how families must respond with compassion and adaptability when loved ones face mental or physical challenges. The story is inspired by the director’s own experience with her father’s diagnosis of Parkinson’s Disease when she was in high school. The main characters, a father and daughter, must navigate the father’s changing needs after his diagnosis by prioritizing their connection and adapting to his new physical challenges. In the film, they do this through the creation of pottery. The imperfect, handmade design style of the film …


Fear, Uncertainty, And The Chilling Effect: A Case Study Of Organizational Racialized Omission, Annie Jones Jan 2026

Fear, Uncertainty, And The Chilling Effect: A Case Study Of Organizational Racialized Omission, Annie Jones

Graduate Studies Theses and Dissertations 2026

Florida passed House Bill 7 in 2022 and Senate Bill 266 in 2023, both policies that restrict how race and racism are discussed and taught in the public higher education setting. Although scholars of race and racism contend that colorblind ideology drives the “new racism,” the U.S. is experiencing a resurgence in similar curriculum bans explicitly based on topics related to race and racism. With these trends has emerged a need to understand how explicitly racialized policies fit within the “new racism” framework. Using Victor Ray’s Theory of Racialized Organizations, this study analyzes how colorblind ideology and racialized threat are …


Exploring The Temporal Context Of Abusive Supervision, Alexandra Kandah Jan 2026

Exploring The Temporal Context Of Abusive Supervision, Alexandra Kandah

Graduate Studies Theses and Dissertations 2026

This dissertation examined the temporal dynamics of abusive supervision and their implications for employee burnout and turnover intentions. Drawing from gestalt characteristics theory and uncertainty management theory, this research investigated whether the timing, frequency, variability, and change in abusive supervision influence employee outcomes beyond traditional cross-sectional conceptualizations. Study 1 used a qualitative design to explore how abusive supervision unfolds over time. Fourteen working adults reporting a past abusive supervisor participated in semi-structured interviews focused on the temporal dynamics of their experience with abusive supervision. Results indicated that abusive supervision often began early, recurred frequently, and was characterized by unpredictability and …


Gratitude As Social Information: How Leader And Follower Gratitude Expressions Influence First-Level Supervisors’ Work Experiences, Meghan E. Kane Jan 2026

Gratitude As Social Information: How Leader And Follower Gratitude Expressions Influence First-Level Supervisors’ Work Experiences, Meghan E. Kane

Graduate Studies Theses and Dissertations 2026

Gratitude is an important other-oriented, moral emotion known to promote individual well-being, strengthen social relationships, and foster positive workplace outcomes. Yet, organizational research has largely focused on gratitude as an individual trait or internal emotional state, with limited attention to its interpersonal signaling functions. Drawing on Emotion as Social Information (EASI) theory, this dissertation conceptualizes gratitude expressions as social cues that shape how others feel, think, and behave in the workplace. Focusing on first-level supervisors, an underexamined yet critical role in organizations, and integrating insights from leadership and followership research, this work examines how the source of gratitude expressions (leader …


Numerical Simulation Of Micro-Cutting Processes For The Estimation Of Material Fracture Toughness, Juan J. Lainez Jan 2026

Numerical Simulation Of Micro-Cutting Processes For The Estimation Of Material Fracture Toughness, Juan J. Lainez

Graduate Studies Theses and Dissertations 2026

Accurate determination of plane-strain fracture toughness is essential for structural integrity assessments of engineering components, yet conventional ASTM standardized testing methods require large, notched specimens that are impractical in many industrial and research contexts. This thesis presents a finite element method-based approach for estimating the mode I plane-strain fracture toughness of engineering materials from orthogonal micro-cutting simulations if the continuum damage mechanics-based fracture locus is calibrated. This method will eliminate the need for pre-cracked specimens while maintaining physically grounded fracture mechanics principles. The methodology applies to the Atkins energy-based cutting force model, in which the depth-independent intercept of the specific …