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2015

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The Effects Of Out-Of-Regime Guidance On Auditor Judgments About Appropriate Application Of Accounting Standards, H. Scott Asay, Tim Brown, Mark W. Nelson, T. Jeffrey Wilks Jan 2015

The Effects Of Out-Of-Regime Guidance On Auditor Judgments About Appropriate Application Of Accounting Standards, H. Scott Asay, Tim Brown, Mark W. Nelson, T. Jeffrey Wilks

Faculty Publications

Accountants making judgments with respect to a particular set of standards are increasingly aware of standards from other reporting regimes that offer additional or conflicting guidance. In fact, IFRS encourages reliance on out-of-regime standards when IFRS lacks guidance. This paper reports the results of two experiments which provide evidence that auditors in such circumstances are vulnerable to contrast effects, whereby reporting judgments under IFRS are systematically influenced away from the accounting treatment supported by standards from another regime (U.S. GAAP). Contrast effects are observed (1) when out-of-regime standards are considered before making a reporting judgment under IFRS and (2) when …

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Family Leisure: An Integrative Review Of Research From Select Journals, Camilla Hodge, Jason N. Bocarro, Karla A. Henderson, Ramon Zabriskie, Toby L. Parcel, Michael A. Kanters Jan 2015

Family Leisure: An Integrative Review Of Research From Select Journals, Camilla Hodge, Jason N. Bocarro, Karla A. Henderson, Ramon Zabriskie, Toby L. Parcel, Michael A. Kanters

Faculty Publications

Understanding the relationship between leisure and families has been and will continue to be an important area of study. The purpose of this study is to review existing family leisure research from four select journals between 1990 and 2012. Articles are examined for sample characteristics, methods, analytical approaches, and thematic trends. Overall, 181 articles regarding family leisure, leisure in context of family life or roles, and individual experiences of family leisure are identified. Findings suggest scholars made strides toward expanding methods, analyses, and sampling diversity, though more diversity in sampling and analytical approaches is needed. Three major research themes are …

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The Effect Of Providing Peer Information On Retirement Savings Decisions, John Beshears, James J. Choi, David Laibson, Brigitte C. Madrian, Katherine L. Milkman Jan 2015

The Effect Of Providing Peer Information On Retirement Savings Decisions, John Beshears, James J. Choi, David Laibson, Brigitte C. Madrian, Katherine L. Milkman

Faculty Publications

Using a field experiment in a 401(k) plan, we measure the effect of disseminating information about peer behavior on savings. Low-saving employees received simplified plan enrollment or contribution increase forms. A randomized subset of forms stated the fraction of age-matched coworkers participating in the plan or age-matched participants contributing at least 6% of pay to the plan. We document an oppositional reaction: the presence of peer information decreased the savings of nonparticipants who were ineligible for 401(k) automatic enrollment, and higher observed peer savings rates also decreased savings. Discouragement from upward social comparisons seems to drive this reaction.

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Strategically Camouflaged Corporate Governance In Ipos: Entrepreneurial Masking And Impression Management, David F. Benson, James C. Brau, James Cicon, Stephen P. Ferris Jan 2015

Strategically Camouflaged Corporate Governance In Ipos: Entrepreneurial Masking And Impression Management, David F. Benson, James C. Brau, James Cicon, Stephen P. Ferris

Faculty Publications

Entrepreneurs attempt to persuade potential investors that their new ventures are both credible andworthy of funding. A long line of research on entrepreneurial impressionmanagement establishes that the ability to present their ventures in a favorable light is a key attribute of successful entrepreneurs. In this study, we examine the opposite side of the issue and test to determine if some entrepreneurs obscure corporate governance information.We create a newmetric tomeasure the level of camouflage used in governance documents for initial public offerings (IPOs). We find that entrepreneurs are less likely to use camouflage during periods of high scrutiny, as measured by …

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Does Microfinance Fill The Funding Gap For Microentrepreneurs? A Conceptual Analysis Of Entrepreneurship Seeding In Impoverished Nations, James C. Brau, Sunshine N. Cardell, Warner P. Woodworth Jan 2015

Does Microfinance Fill The Funding Gap For Microentrepreneurs? A Conceptual Analysis Of Entrepreneurship Seeding In Impoverished Nations, James C. Brau, Sunshine N. Cardell, Warner P. Woodworth

Faculty Publications

We address the role microfinance institutions (MFIs) play in funding entrepreneurial ventures and present a distinction between the types of entrepreneurs that seek MFI and traditional venture funding. We argue that microfinance can serve successfully as s eed financing for microentrepreneurs in under developed economies around the world. By comparing bootstrapping and private equity seed financing in developed economies to microfinance seed financing in impoverished economies, we show that the different ent repreneurial characteristics in the two economies have similar funding gaps but are solved with different sources of funding.

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Using Trust And Anonymity To Expand The Use Of Anonymizing Systems That Improve Security Across Organizations, Anthony Vance, Paul Benjamin Lowry, David W. Wilson Jan 2015

Using Trust And Anonymity To Expand The Use Of Anonymizing Systems That Improve Security Across Organizations, Anthony Vance, Paul Benjamin Lowry, David W. Wilson

Faculty Publications

To mitigate risks inherent in sharing sensitive cyber-security information, recent research has examined anonymizing systems (ANS) that hide the identities of participants and decouple data from their originators. ANS are particularly compelling as a potential support to cyber-security information sharing because the cost of implementation is relatively low, and the more organizations and nations that participate, the more everyone benefits. Although such systems are promising to both developing and mature cyber-infrastructures, they still have not been widely adopted for use in sharing cyber-security information. Relatively little prior research has investigated the perception and adoption of these systems, despite their potential …

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Media Capabilities That Support Identity Communication In Virtual Teams, David W. Wilson, Sherry M. B. Thatcher, Susan A. Brown Jan 2015

Media Capabilities That Support Identity Communication In Virtual Teams, David W. Wilson, Sherry M. B. Thatcher, Susan A. Brown

Faculty Publications

Virtual teams play an increasingly important role in the modern economy, and many organizations struggle to overcome the weaknesses inherent in technology-mediated work. Identity communication has been shown to greatly improve individual- and group-level outcomes in offline settings, but these benefits have not been investigated in the context of virtual teams, where mediated interaction can reduce the opportunity for identity communication. Building on prior media theories, we develop and test a model explaining how technology can enable identity communication in virtual settings. Using a controlled experiment (N=186), we test our hypotheses and find strong support for the proposed model. Our …

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Identity Communication In Virtual Teams: Insights From Interviews With Working Professionals, David W. Wilson, Susan A. Brown, Sherry M. B. Thatcher, Sarah D. Harris Jan 2015

Identity Communication In Virtual Teams: Insights From Interviews With Working Professionals, David W. Wilson, Susan A. Brown, Sherry M. B. Thatcher, Sarah D. Harris

Faculty Publications

Organizations are increasingly using virtual teams to gain competitive advantages in the marketplace, but managers face a tradeoff between the benefits that such virtual teams provide and their inherent weaknesses. This paper examines identity communication in virtual environments, arguing that identity communication can counteract some of the negative aspects of virtual teamwork. Using coded transcriptions from 35 semi-structured interviews with working professionals who participate in virtual teams, we explore the process of identity communication in virtual teams and the role of technology in influencing and enabling these processes. Using established identity and media theories as a guide, we formulate, and …

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Deception Is In The Eye Of The Communicator: Investigating Pupil Diameter Variations In Automated Deception Detection Interviews, Jeffrey G. Proudfoot, Jeffrey L. Jenkins, Judee K. Burgoon, Jay F. Nunamaker Jr. Jan 2015

Deception Is In The Eye Of The Communicator: Investigating Pupil Diameter Variations In Automated Deception Detection Interviews, Jeffrey G. Proudfoot, Jeffrey L. Jenkins, Judee K. Burgoon, Jay F. Nunamaker Jr.

Faculty Publications

Deception is pervasive, often leading to adverse consequences for individuals, organizations, and society. Information systems researchers are developing tools and evaluating sensors that can be used to augment human deception judgments. One sensor exhibiting particular promise is the eye tracker. Prior work evaluating eye trackers for deception detection has focused on the detection and interpretation of brief eye behavior variations in response to stimuli (e.g., images) or interview questions. However, research is needed to understand how eye behaviors evolve over the course of an interaction with a deception detection system. Using latent growth curve modeling, we test how pupil diameter …

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New Slaves: Kanye West, Brad Paisley, And Contemporary Confederate-Flag Discourse In Popular Music Iconography, Kenneth Hartvigsen Jan 2015

New Slaves: Kanye West, Brad Paisley, And Contemporary Confederate-Flag Discourse In Popular Music Iconography, Kenneth Hartvigsen

Faculty Publications

One hundred and fifty years after Appomattox, the iconographic remains of America’s Civil War are still contested symbolic artifacts. Case in point: at the writing of this paper a state bill sat on California Governor Jerry Brown’s desk which would ban the sale of the Confederate flag or any merchandise with Confederate flag imagery on state property. Thus California has become the most recent battleground of the war between the states, or to word it in more precise language, California legislators have entered the debate over who controls a flag’s meaning and memory.

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Using Text Sets To Foster Critical Inquiry, Dawan Coombs, Devery Bellingham Jan 2015

Using Text Sets To Foster Critical Inquiry, Dawan Coombs, Devery Bellingham

Faculty Publications

This article explores three ways a teacher incorporated text sets into her seventh-grade classroom to foster authentic inquiry. Student reflections suggest this approach helped them cultivate questioning, researching, and cooperative learning skills that became lasting habits of inquiry and helped them succeed on core tests.

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Lost (But Not Missing) At Work: Organizational Lostness As An Employee Response To Change, Lisa Jones Christensen, Scott C. Hammond Jan 2015

Lost (But Not Missing) At Work: Organizational Lostness As An Employee Response To Change, Lisa Jones Christensen, Scott C. Hammond

Faculty Publications

This article draws from the psychology of lost person behavior, established from wilderness search and rescue missions, to suggest that employees experience the condition of being lost within organizations. Data from wilderness searches, survivors, and organizational actors suggests that lessons from lost person behaviors apply in organizations. Reactions to being lost in an organization follow predictable patterns and include five specific stages: separation, isolation, deviation, deprivation, and realization. In defining the construct of organizational lostness and differentiating it from stress, coping, and resistance, we suggest an organizing framework to understand employee behaviors that would previously seem idiosyncratic. This article offers …

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Normative Stakeholder Capitalism: Getting From Here To There, Marc-Charles Ingerson, Bradley R. Agle, Thomas Donalson, Paul C. Godfrey, Jared D. Harris, Jeffrey S. Harrison, Adrian Keevil, Ronald K. Mitchell, Robert A. Phillips Jan 2015

Normative Stakeholder Capitalism: Getting From Here To There, Marc-Charles Ingerson, Bradley R. Agle, Thomas Donalson, Paul C. Godfrey, Jared D. Harris, Jeffrey S. Harrison, Adrian Keevil, Ronald K. Mitchell, Robert A. Phillips

Faculty Publications

The capability of normative declarations to alter outcomes is well accepted. 'We hold these truths to be self-evident ... ,' 'inalienable rights, ... life, liberty, ... pursuit of happiness, .. .' and similar statements contain within them social energy that inspires the mind, justifies new modes of thought, and enables change .... Normative discourse, we therefore believe, must continue to be endemic to stakeholder theory and research if scholars want this theory to flourish and fulfill its aims as a theory of the firm-not the least of which is attending to the long-run interests of both the business corporation and …

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Implementing Simulation Into Oncology Education, Megan Ruth Hills Jan 2015

Implementing Simulation Into Oncology Education, Megan Ruth Hills

Nursing

Nurses, who choose oncology, face complex challenges on a daily basis due to the disease itself and the effects of its treatment. The purpose of the project was to examine the effect implementing simulation into the education of oncology nurses, would have on participant confidence and perceived competence in caring for such complex patients. Two simulation scenarios based on oncologic emergencies were developed and incorporated into the education of oncology nurses at a Midwest hospital. Written pre- and post-evaluations were completed by simulation participants. The results revealed a positive increase in mean rating from pre- to postevaluation, ultimately indicating achievement …

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Nursing Student Stress, Emily Pohribnak Kulland Jan 2015

Nursing Student Stress, Emily Pohribnak Kulland

Nursing

Nursing students experience multiple stressors as they are expected to apply theoretical learning and develop critical thinking skills while in the professional environment. Perceived overwhelming negative stressors can lead to absenteeism, job dissatisfaction, and a high employment turnover rate. This research compared levels of stress between sophomore, junior and senior nursing students at a public university and a private college, utilizing the Student Nurse Stress Index (SNSI, Jones and Johnson, 1999) and the Nursing Student Demographic Survey. Summary scores from the SNSI suggest that private college students report higher levels of stress than public students in four main areas including: …

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Lived Experiences Of Stigma: Nurses Who Work In Abortion Clinics, Rosa Leigh Jacobs Jan 2015

Lived Experiences Of Stigma: Nurses Who Work In Abortion Clinics, Rosa Leigh Jacobs

Nursing

The profession of nursing is respected and trustworthy, but certain nursing specialty fields are looked at less favorably than others. Abortion nursing can be highly stigmatized because of society’s ethical, religious, and legislative arguments about abortion. This qualitative study with ten licensed nurses who work in abortion care in the United States sought to answer two research questions, “What are the lived experiences of nurses who work in abortion clinics?” and “How do nurses who work in abortion clinics experience stigma?” Three stigma themes and seven lived experience themes emerged from the research. The stigma themes pertain to participants’ experiences …

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Examining Legalism, Scrupulosity, Family Perfectionism, And Psychological Adjustment Among Lds Individuals, Kawika Allen, Kenneth T. Wang, Hannah Stokes Jan 2015

Examining Legalism, Scrupulosity, Family Perfectionism, And Psychological Adjustment Among Lds Individuals, Kawika Allen, Kenneth T. Wang, Hannah Stokes

Faculty Publications

This study examined the relationships and interactions between legalism, scrupulosity, family perfectionism, guilt, and shame among 421 Latter-Day Saints (LDS or Mormons). The results showed that scrupulosity fully mediated the links between legalism and guilt, as well as legalism and shame. A moderated-mediation effect was found, in which family discrepancy (maladaptive perfectionism) intensified the scrupulosity–shame association in the mediation model of legalism and shame by scrupulosity. Family discrepancy was not a significant moderator for the mediation model of legalism and guilt by scrupulosity. Additional results are provided and implications of these findings are outlined.

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Exploring Perceived Attitudes Of Counseling Between Lds Religious Leaders And Mental Health Therapists, Kawika Allen, Curtis Hill Jan 2015

Exploring Perceived Attitudes Of Counseling Between Lds Religious Leaders And Mental Health Therapists, Kawika Allen, Curtis Hill

Faculty Publications

Perceived attitudes between mental health therapists and local congregational LDS religious leaders regarding the value, function, and efficacy of mental health therapy were qualitatively examined. Qualitative data emerging from 4 LDS religious leaders (all male; 3 bishops and 1 stake president) and 7 mental health therapists (5 females, 2 males) were analyzed. Results showed differences in attitudes related to the collaboration process as well as the efficacy and process of counseling between local mental health therapists and LDS religious leaders in a specific Southwest region of the U.S. Additional results are reported. Implications are discussed related to these findings.

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Spiritual Pathways To Healing And Recovery: An Intensive Single-N Study Of An Eating Disorder Patient, Kawika Allen, Troy Lea, P. Scott Richards, Peter W. Sanders, Jason A. Mcbride Jan 2015

Spiritual Pathways To Healing And Recovery: An Intensive Single-N Study Of An Eating Disorder Patient, Kawika Allen, Troy Lea, P. Scott Richards, Peter W. Sanders, Jason A. Mcbride

Faculty Publications

This article presents an in-depth single case study of 8 sessions of spiritually integrated psychotherapy with a 20-year-old woman recovering from an Eating Disorder. The inclusion and utility of session-to-session outcome data as well as systematic follow up data in conjunction with in-depth qualitative interviews are shown. Dr. H and client’s perspectives are highlighted over the course of treatment. Clinical areas of focus were extracted from the the qualitative interviews and the therapeutic process is described. Single-case study statistical analyses were conducted to highlight clinical gains and maintenance.

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Bringing Spiritually Oriented Psychotherapies Into The Health Care Mainstream: A Call For Worldwide Collaboration, Kawika Allen, P. Scott Richards, Peter W. Sanders, Troy Lea, Jason A. Mcbride Jan 2015

Bringing Spiritually Oriented Psychotherapies Into The Health Care Mainstream: A Call For Worldwide Collaboration, Kawika Allen, P. Scott Richards, Peter W. Sanders, Troy Lea, Jason A. Mcbride

Faculty Publications

The purpose of this article is to describe an overall strategy and specific plans for bringing spiritually oriented treatment approaches into the health care mainstream. We describe Bridges, a practice-research network created in 2012 that is devoted to helping practitioners, researchers, educators, and pastoral professionals collaboratively pursue this goal. We describe the achievements of Bridges thus far, which include a website for networking, an online psychotherapy research system, several completed studies, and grant funding for future collaborative research studies. We conclude with an invitation to health care professionals around the world to join with us in efforts to mainstream spirituality …

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Why Women Don’T Run: Experimental Evidence On Gender Differences In Political Competition Aversion, Jessica Preece, Olga B. Stoddard Jan 2015

Why Women Don’T Run: Experimental Evidence On Gender Differences In Political Competition Aversion, Jessica Preece, Olga B. Stoddard

Faculty Publications

Women's underrepresentation in leadership positions has been well documented, but the reasons behind it are not well understood. We carry out a field experiment to test a prominent theory about the source of the gender gap in leadership ambition: women's higher aversion to competitive environments. Using politics as a context for our study, we employ two distinct subject pools – highly politically active individuals and workers from an online labor market. We find that priming individuals to consider the competitive nature of politics has a strong negative effect on women's interest in political office, but not on men's interest, hence …

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Fire-Sale Fdi? The Impact Of Financial Crises On Foreign Direct Investment, Olga B. Stoddard, Ilan Noy Jan 2015

Fire-Sale Fdi? The Impact Of Financial Crises On Foreign Direct Investment, Olga B. Stoddard, Ilan Noy

Faculty Publications

We analyze the evolution of foreign direct investment (FDI) inflows to developing and emerging countries around financial crises. We empirically examine the Fire-Sale FDI hypothesis and describe the pattern of FDI inflows surrounding financial crises. We also add a more granular detail about the types of financial crises and their potentially differential effects on FDI. We distinguish between mergers and acquisitions(M&A) and greenfield investment, as well as between horizontal (tariff jumping) and vertical (integrating production stages) FDI. We find that financial crises have a strong negative effect on inward FDI in our sample. Crises are also shown to reduce the …

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L1, L2, And Cognitive Development: Exploring Relationships, Troy L. Cox, Dan P. Dewey, Ray Clifford Jan 2015

L1, L2, And Cognitive Development: Exploring Relationships, Troy L. Cox, Dan P. Dewey, Ray Clifford

Faculty Publications

Second language learners often express frustration over the reality that their limited second language (L2) skills prevent them from full participation in intellectual discussions, and some have exclaimed, “Hey, I’m smarter than I sound!” Those who have had this experience recognize that a relationship exists between one’s language ability and other’s perceptions of one’s cognitive abilities. In daily life, this relationship between language and cognition is so prevalent that it is often ignored, or the abilities are simply conflated. For example, calls by employers to improve the critical thinking skills of college graduates are typically exemplified by statements about language …

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Factors Affecting Language Use Outside The Esl Classroom: Student Perspectives, Norman W. Evans, Elena Shvidko, K. James Hartshorn Jan 2015

Factors Affecting Language Use Outside The Esl Classroom: Student Perspectives, Norman W. Evans, Elena Shvidko, K. James Hartshorn

Faculty Publications

Policies governing language use in and out of the ESL classroom are controversial. While some scholars claim that an English-only policy is necessary to maximize language development, others argue that native language (L1) use is an inevitable part of teaching and learning. This debate continues in intensive English programs, particularly regarding policies governing language use within school precincts but outside of the classroom. English-learning institutions implement various language policies, but few are informed by empirical research that reflects learner perspectives. Accordingly, many policies are enforced in ways that undermine the positive environment needed to maximize language learning. Unfortunately, the literature …

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Development And Validation Of A New Blade Element Momentum Skewed-Wake Model Within Aerodyn, Andrew Ning, Greg Hayman, Rick Damiani, Jason Jonkman Jan 2015

Development And Validation Of A New Blade Element Momentum Skewed-Wake Model Within Aerodyn, Andrew Ning, Greg Hayman, Rick Damiani, Jason Jonkman

Faculty Publications

Blade element momentum methods, though conceptually simple, are highly useful for analyzing wind turbines aerodynamics and are widely used in many design and analysis applications. A new version of AeroDyn is being developed to take advantage of new robust solution methodologies, conform to a new modularization framework for National Renewable Energy Laboratory’s FAST, utilize advanced skewed-wake analysis methods, fix limitations with previous implementations, and to enable modeling of highly flexible and nonstraight blades. This paper reviews blade element momentum theory and several of the options available for analyzing skewed inflow. AeroDyn implementation details are described for the benefit of users …

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Instrument For Precision Long-Term Ss-Decay Rate Measurements, M. J. Ware, Scott D. Bergeson, J. E. Ellsworth, M. Groesbeck, J. E. Hansen, D. Pace, J. Peatross Jan 2015

Instrument For Precision Long-Term Ss-Decay Rate Measurements, M. J. Ware, Scott D. Bergeson, J. E. Ellsworth, M. Groesbeck, J. E. Hansen, D. Pace, J. Peatross

Faculty Publications

We describe an experimental setup for making precision measurements of relative ß-decay rates of 22Na, 36Cl, 54Mn, 60Co, 90Sr, 133Ba, 137Cs, 152Eu, and 154Eu. The radioactive samples are mounted in two automated sample changers that sequentially position the samples with high spatial precision in front of sets of detectors. The set of detectors for one sample changer consists of four Geiger-Müller (GM) tubes and the other set of detectors consists of two NaI scintillators. The statistical uncertainty in the count rate is few times 0.01% per day for the GM …

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Best Practices In Computational Fluid Dynamics Modeling Of Cerebral Aneurysms Using Ansys Cfx, Emily Rose Nordahl Jan 2015

Best Practices In Computational Fluid Dynamics Modeling Of Cerebral Aneurysms Using Ansys Cfx, Emily Rose Nordahl

Mechanical Engineering and Applied Mechanics

Today many researchers are looking toward computational fluid dynamics (CFD) as a tool that can help doctors understand and predict the severity of aneurysms, but there has yet to be any conclusive proof of the accuracy or the ease of implementation of this CFD analysis. To help solve this issue, CFD simulations were conducted to compare these setup practices in order to find the most accurate and computationally efficient setup. These simulation comparisons were applied over two CFD group challenges from the CFD community whose goal was not only to assess modeling accuracy, but the analysis of clinical use and …

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Dried Distillers Grains With Solubles As A Multifunctional Filler In Wood Particleboards, David John Sundquist Jan 2015

Dried Distillers Grains With Solubles As A Multifunctional Filler In Wood Particleboards, David John Sundquist

Mechanical Engineering and Applied Mechanics

Dried Distillers Grains with Solubles (DDGS) has been investigated for its use as a functional filler in wood particleboards bonded with Melamine Urea Formaldehyde. Both the concentration of the DDGS filler – 5, 10, and 15 wt. % – and the particle size of the filler – 125, 300, and 500 μm – has been considered. It was presumed that the additional protein and fats in the lignocellulosic DDGS would increase strength and water resistance of the particleboards. Chemical analysis, thermogravimetric analysis, and differential scanning calorimetry were used to analyze the DDGS filler. A variety of mechanical tests were performed …

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The Use Of Electrospun Soy Protein Isolate/Polyvinyl Alcohol Nanofibers For Controlled Drug Delivery As Well As Investigation Into Mass Production, David Paul Gutschmidt Jan 2015

The Use Of Electrospun Soy Protein Isolate/Polyvinyl Alcohol Nanofibers For Controlled Drug Delivery As Well As Investigation Into Mass Production, David Paul Gutschmidt

Mechanical Engineering and Applied Mechanics

As the global movement progresses towards environmental awareness, industries are attempting to become less dependent on petroleum based materials. This study investigates the incorporation of Soy Protein Isolate (SPI) into nanofibers and their potential applications. Initially mechanical testing was conducted; it was found that at 1:1 ratio of SPI to polymer (PVA) was optimal. For drug release test, SPI based nanofibers were tested via three formulations including nanoparticle implementation. Results observed that loading the drug onto the nanoparticle showed sustained release, ~67% release at 70 hours. Mathematical models of both diffusion and erosion confirmed experimental findings. SPI based nanofibers were …

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Optimized Evaluation Of Bone Tissue Material Properties By Inverse Finite Element Analysis And Femur Fracture Testing, Samad Javid Jan 2015

Optimized Evaluation Of Bone Tissue Material Properties By Inverse Finite Element Analysis And Femur Fracture Testing, Samad Javid

Mechanical Engineering and Applied Mechanics

The main objective of this research is to characterize bone inhomogeneous elastic, yield, and post-yield behaviors, using a computational-experimental approach. The current study uses the force-displacement results of one hundred four cadaveric femora that were previously tested to fracture in a fall on the hip loading configuration. Recorded force-displacement data are used to determine stiffness, yield force, and femoral strength values. Finite element (FE) models of the femora are developed from the quantitative computed tomography scans captured before the fracture tests. A power law, or a sigmoid function, is used to determine the elastic modulus from the ash densities for …

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