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Dissertations / Theses on the topic 'Fatigue in women'

Author: Grafiati

Published: 4 June 2021

Last updated: 20 February 2023

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1

Taylor, Janice D., University of Western Sydney, College of Social and Health Sciences, and of Nursing Family and Community Health School. "Exploring postnatal fatigue : influential factors and management strategies for women." THESIS_CSHS_NFC_Taylor_J.xml, 2003. http://handle.uws.edu.au:8081/1959.7/740.

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Caring for a new child is a significant, demanding, and time consuming role, often associated with increased stress. Postnatal depression is one possible outcome of increased stress and research has highlighted the importance of detecting depression in new mothers. However fatigue a correlate of depression, has only recently become a focus of research among health professionals. Understanding the nature of fatigue and its management within the postnatal period, the focus of this study, may reduce its impact on women’s lives. This longitudinal study explores changes in intensity, physical, ment

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2

Robertshaw, Hazel Patricia. "Fatigue in women with breast cancer : a longitudinal study." Thesis, King's College London (University of London), 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.435010.

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Taylor, Janice D. "Exploring postnatal fatigue : influential factors and management strategies for women." Thesis, View thesis, 2003. http://handle.uws.edu.au:8081/1959.7/740.

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Caring for a new child is a significant, demanding, and time consuming role, often associated with increased stress. Postnatal depression is one possible outcome of increased stress and research has highlighted the importance of detecting depression in new mothers. However fatigue a correlate of depression, has only recently become a focus of research among health professionals. Understanding the nature of fatigue and its management within the postnatal period, the focus of this study, may reduce its impact on women’s lives. This longitudinal study explores changes in intensity, physical, ment

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4

Profant, Judith. "Fatigue and sleep complaints in women treated for breast cancer /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2004. http://wwwlib.umi.com/cr/ucsd/fullcit?p3129934.

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5

Taylor, Janice D. "Exploring postnatal fatigue : influential factors and management strategies for women /." View thesis, 2003. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20051125.152732/index.html.

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6

Guenette, Jordan Ali. "Respiratory mechanics and diaphragmatic fatigue during exercise in men and women." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/19995.

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Purpose: The purpose of this thesis was to determine the underlying mechanisms associated with a higher total WOB in women (Study 1) and to determine if women experience greater levels of diaphragmatic fatigue relative to men (Study 2). Methods: Study 1: Sixteen endurance-trained subjects (8M:8F) underwent a progressive cycling test to exhaustion while esophageal pressure and lung volumes were measured. Modified Campbell diagrams were used to calculate the inspiratory and expiratory resistive and elastic components at 50, 75, 100 l·min⁻¹ and maximal ventilations and also at standardized

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7

Mckeown, Alison Clare. "Relationships in women with a diagnosis of chronic fatigue sysndrome (CFS)." Thesis, University of Sheffield, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.527253.

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8

Bounds, Emilee M. "Effects of a functional fatigue protocol on maximal softball hitting /." Read thesis online, 2010. http://library.uco.edu/UCOthesis/BoundsEM2010.pdf.

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9

Short, Michala. "Persistent fatigue and endocrine function in women after radiotherapy for breast cancer." Thesis, The University of Sydney, 2010. http://hdl.handle.net/2123/6446.

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The experience of persistent fatigue after breast cancer treatment is estimated to affect approximately one in four women, but fatigue development and factors associated with cancer-related fatigue are poorly understood. Gaining a better understanding of these issues is important because persistent fatigue after radiation therapy can be a debilitating experience for cancer survivors. The objectives of this study were: (1) to determine fatigue prevalence in women with breast cancer at standardised timepoints after radiation therapy; (2) to investigate the relationships between fatigue, salivary

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10

Short, Michala. "Persistent fatigue and endocrine function in women after radiotherapy for breast cancer." University of Sydney, 2010. http://hdl.handle.net/2123/6446.

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Doctor of Philosophy(PhD)<br>The experience of persistent fatigue after breast cancer treatment is estimated to affect approximately one in four women, but fatigue development and factors associated with cancer-related fatigue are poorly understood. Gaining a better understanding of these issues is important because persistent fatigue after radiation therapy can be a debilitating experience for cancer survivors. The objectives of this study were: (1) to determine fatigue prevalence in women with breast cancer at standardised timepoints after radiation therapy; (2) to investigate the relationsh

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11

Viberg, Lovisa, and Hillevi Sebbfolk. "Kvinnors erfarenheter av fatigue vid bröstcancerbehandling : En litteraturstudie." Thesis, Umeå universitet, Institutionen för omvårdnad, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-183308.

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Bakgrund: Flertalet kvinnor med bröstcancer genomgår olika stadier ochbehandlingar i sjukdomen. Olika biverkningar uppstå, exempelvis illamående,smärta och fatigue. Fatigue är ett symtom som har stor negativ påverkan på kvinnorslivskvalitet. Det finns ytterligare behov av forskning inom området då kunskapen omfatigue är bristfällig. Syfte: Syftet med litteraturstudien var att beskriva kvinnors upplevelse av fatiguevid bröstcancerbehandling. Metod: En kvalitativ litteraturstudie som innefattar tio vetenskapliga artiklar medkvalitativ metod. Databaser som har använts är Cinahl, PubMed, Medline,

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12

Gray, Cheri Lynn. "Depression, Fatigue, Declines in Cognitive Function and Uncertainty in Women with Multiple Sclerosis." Diss., The University of Arizona, 2014. http://hdl.handle.net/10150/321610.

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The purpose of this study was to describe the relationships among common signs/symptoms (depression, fatigue, declines in cognitive function) in women with multiple sclerosis (MS) using a modified version of Braden's Self Help Theoretical Model and evaluate whether depression, fatigue, declines in cognitive function and uncertainty, enabling skills (self-control in this study) and self-management (coping in this study) influence quality of life outcomes in women with MS. MS is one of the most common causes of disability among young adults and is the most prevalent neurological disease among yo

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13

Ikeuchi, Kaori. "The relation between mindfulness and the fatigue of women with breast cancer: path analysis." Kyoto University, 2020. http://hdl.handle.net/2433/259735.

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14

Bennett, Barbara Kaye School of Medicine UNSW. "Characterising the nature of postcancer fatigue in women treated for early-stage breast cancer." Awarded by:University of New South Wales. School of Medicine, 2006. http://handle.unsw.edu.au/1959.4/31202.

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The problem investigated Four studies investigated the phenomenon of cancer-related fatigue (CRF) in women who had received adjuvant treatment for early-stage breast cancer, with a view to reducing the diagnostic uncertainty surrounding the syndrome and thus facilitating progress in both clinical management and aetiological research. Procedures and results A cross-sectional study of 109 women compared a ???cancer-specific??? self-report questionnaire (FACT-F) (canvassing fatigue symptoms) and a more generic questionnaire (SPHERE) (identifying depression and fatigue). Thirty-seven percent of wo

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15

Newland, Pamela Kay. "Impact of symptoms on quality of life in women with relapsing-remitting multiple sclerosis and healthy women." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4343.

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Thesis (Ph. D.)--University of Missouri-Columbia, 2006.<br>"December 2006" The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Vita. Includes bibliographical references.

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16

Banthia, Rajni. "Post-treatment fatigue in breast cancer survivors : the role of sleep quality and depressed mood /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2004. http://wwwlib.umi.com/cr/ucsd/fullcit?p3130213.

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17

Lam, Wendy Wing-Tak. "Interrelationships among physical symptom distress, psychological distress, and fatigue in women with breast cancer undergoing radiation therapy." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ29303.pdf.

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18

Merriman, John D. "Predictors of the trajectories of self-reported attentional fatigue in women with breast cancer undergoing radiation therapy." Diss., Search in ProQuest Dissertations & Theses. UC Only, 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1465497.

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19

Haas, Barbara Kay. "Fatigue, self-efficacy for physical activity, physical activity, and quality of life in women with breast cancer." Full text (off-campus access restricted to users with UT Austin EID) Full text (PDF) from UMI/Dissertation Abstracts International, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3037017.

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20

Budhrani, Pinky H. "Race/Ethnicity, Subjective and Objective Sleep Quality, Physical and Psychological Symptoms in Breast Cancer Survivors." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4645.

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Breast cancer is a major health problem and comprises the largest population of cancer survivors in the United States, estimated at 2.9 million women, accounting for 22% of all cancer survivors (National Cancer Institute, 2013). The advances in breast cancer screening, diagnosis and treatment has increased the importance of survivorship needs. A major concern among breast cancer survivors (BCS) is sleep disturbances. This study used an innovative approach to examine ethnic and racial disparities in sleep disturbances present in BCS. In addition, this study also explored sleep disturbances acro

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21

Reynolds, Staci Kayleen. "Effects of Same-day Strength Training on Serve Performance in Female Collegiate Tennis Players." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd746.pdf.

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22

Broberg, Sara, and Sophie Lidström. "Kvinnor med bröstcancer och deras erfarenheter av fysisk aktivitet vid fatigue : En litteraturstudie." Thesis, Högskolan i Gävle, Avdelningen för vårdvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-31336.

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Bakgrund: Bröstcancer är den vanligaste formen av cancer som drabbar kvinnor och den behandlas vanligen med kirurgi, strålning och cellgiftsbehandling. Både bröstcancer och dess behandling är känd för att ge många symtom och biverkningar varav fatigue, extrem trötthet, är en av de vanligaste. Fatigue påverkar kvinnornas vardag, sociala liv och många upplever minskad livskvalité. Att vara fysisk aktiv förebygger många sjukdomar och på så vis kan en aktiv livsstil öka välbefinnandet och bidra till en ökad livskvalité. Sjuksköterskan har som ansvar att främja och bevara hälsa vilket kan uppnås ge

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23

Mlynski, Christopher. "Cardiovascular Response to a Behavioral Restraint Challenge: Urge Magnitude Influence in Men and Women." Thesis, University of North Texas, 2017. https://digital.library.unt.edu/ark:/67531/metadc984125/.

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Agtarap, Wright, Mlynski, Hammad, and Blackledge took an initial step in providing support for the predictive validity of a new conceptual analysis concerned with behavioral restraint, defined as active resistance against a behavioral impulse or urge. The current study was designed to partially replicate and extend findings from their study, employing a common film protocol and a procedure for inducing low- and high levels of fatigue. Analyses on key data indicated that the fatigue manipulation was ineffective. On the other hand, they supported the suggestion that behavioral restraint shoul

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24

So, Kwok-Wei. "The symptom cluster of fatigue, pain and psychological distress and its impact on the quality of life in Chinese patients with breast cancer undergoing cancer treatment /." Connect to full text via ProQuest. Limited to UCD Anschutz Medical Campus, 2007.

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Thesis (Ph.D. in Nursing) -- University of Colorado Denver, 2007.<br>Typescript. Includes bibliographical references (leaves 168-181). Free to UCD affiliates. Online version available via ProQuest Digital Dissertations;

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25

von, Thiele Schwarz Ulrica. "Health and ill health in working women – balancing work and recovery." Doctoral thesis, Stockholms universitet, Psykologiska institutionen, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-8297.

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Work conditions within the public health care sector are physically and psychosocially demanding. This means that balancing work with recovery is essential for employees in order to avoid ill health and stay healthy. This thesis is based on four studies. Study I investigated the prevalence of upper extremity disorders (UED) in female dental personnel. Results showed that 81% reported UED. Consequently, interventions aimed at reducing these risks were called for. Study II investigated the health-related effects of two work-place interventions, physical exercise (PE) and reduced working hours (R

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26

Koertge, Jenny. "Vital exhaustion and coronary artery disease in women : biological correlates and behavioral intervention /." Stockholm, 2003. http://diss.kib.ki.se/2003/91-7349-564-6/.

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27

Badr, Hanan A. "EFFECTS OF POSTPARTUM FATIGUE AND DEPRESSIVE COGNITIONS ON LIFE SATISFACTION AND QUALITY OF LIFE IN POSTPARTUM WOMEN: THE INTERVENING ROLE OF RESOURCEFULNESS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case153193055061821.

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28

Khemthong, Supalak. "The Relationship between frequency and satisfaction of leisure participation and health-related quality of life in women with fatigue secondary to chronic illness." Thesis, Curtin University, 2007. http://hdl.handle.net/20.500.11937/2080.

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Fatigue secondary to chronic illness (FSCI) is a common experience in individuals with chronic conditions, with fatigue impacting on performance of daily activities and health-related quality of life (HRQoL). Due to the higher prevalence of FSCI in women, they may experience even greater disruption to roles and activity engagement. The literature consistently points to three main aspects when defining fatigue regardless of diagnoses; a physical aspect, a psychological aspect, and the impact on activity and participation. Research into the first two aspects has demonstrated relationships betwee

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Cormack, Stuart J., and n/a. "The changes in strength, power and associated functional physiological measures in elite women soccer players during a 12 month preparation for a major event." University of Canberra. Health and Biomedical Science, 2003. http://erl.canberra.edu.au./public/adt-AUC20050411.134745.

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The assessment of strength and power and the relationship of these measures to functional variables such as speed and vertical jump ability are understood poorly. This is particularly the case when dealing with a long-term preparation for a major event in a sport such as women's soccer. The results of this research suggest that a number of isoinertial speed strength measures may be sensitive to aspects of a training program and therefore be useful tools for determining the level of development of various underlying neuromuscular capacities. Further results provide a question mark about the rol

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Khemthong, Supalak. "The relationship between frequency and satisfaction of leisure participation and health-related quality of life in women with fatigue secondary to chronic illness /." Full text available, 2006. http://adt.curtin.edu.au/theses/available/adt-WCU20070821.124638.

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Khemthong, Supalak. "The Relationship between frequency and satisfaction of leisure participation and health-related quality of life in women with fatigue secondary to chronic illness." Curtin University of Technology, School of Occupational Therapy, 2007. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=17166.

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Fatigue secondary to chronic illness (FSCI) is a common experience in individuals with chronic conditions, with fatigue impacting on performance of daily activities and health-related quality of life (HRQoL). Due to the higher prevalence of FSCI in women, they may experience even greater disruption to roles and activity engagement. The literature consistently points to three main aspects when defining fatigue regardless of diagnoses; a physical aspect, a psychological aspect, and the impact on activity and participation. Research into the first two aspects has demonstrated relationships betwee

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Shaffer, Andrea. "The experience of fatigue and quality of life in patients with advanced lung cancer." [Tampa, Fla] : University of South Florida, 2009. http://purl.fcla.edu/usf/dc/et/SFE0003301.

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33

Naraphong, Wipasiri. "Effects of a Culturally Sensitive Exercise Program on Fatigue, Sleep, Mood, and Symptom Distress among Thai Women with Breast Cancer Receiving Adjuvant Chemotherapy: A Pilot Randomized Controlled Trial." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1368084924.

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34

Montalti, Camila Stein 1988. "Qualidade de vida e fadiga avaliadas pelos questionários SF-36 e FACIT-F em mulheres com e sem anemia com sangramento menstrual abundante = Quality of life and fatigue evaluated by SF-36 and FACIT-F questionnaires in anemic and non anemic women with heavy menstrual bleeding." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/309687.

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Orientadores: Ilza Maria Urbano Monteiro, Maria Yolanda Makuch<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas<br>Made available in DSpace on 2018-08-28T02:22:46Z (GMT). No. of bitstreams: 1 Montalti_CamilaStein_M.pdf: 1208610 bytes, checksum: f81cceda9a4fdf6f5d2f94dfa9b3583b (MD5) Previous issue date: 2015<br>Resumo: INTRODUÇÃO: Sangramento menstrual abundante (SMA) é uma queixa comum entre as mulheres e pode comprometer a qualidade de vida (QV), além de levar à diminuição da concentração sérica de hemoglobina (Hb), causando anemia e fadiga. OBJE

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35

Schmitt, Lisa. "Efeitos do exercício terapêutico na fadiga em mulheres com cancro da mama: uma revisão bibliográfica." Bachelor's thesis, [s.n.], 2021. http://hdl.handle.net/10284/10211.

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Projeto de Graduação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Licenciada em Fisioterapia<br>Objetivo: Com esta revisão bibliográfica pretendeu-se entender os efeitos do exercício terapêutico na fadiga em mulheres com cancro da mama. Metodologia: Foi realizada uma pesquisa nas bases de dados PubMed e PEDro (Physiotherapy Evidence Database) entre Janeiro e Fevereiro de 2021, para identificar os estudos randomizados controlados que avaliassem os efeitos de exercícios na qualidade de vida, fadiga, depressão e força muscular principalmente. A qua

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Patel, Sneha Ramesh. "Durability of Advanced Woven Composites in Aerospace Applications." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/33736.

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The objective of this project was to evaluate and model the effects of moisture, temperature, and combined hygrothermal aging on the durability of a graphite/epoxy woven composite material system. Imposed environmental and aging conditions were considered to be representative of service conditions for the engine of an advanced subsonic aircraft for which the composite system is a candidate material. The study was designed such that the results could be used in a residual strength based life prediction approach that accounted for both the mechanical fatigue and environmental conditions. Dama

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37

Poole, Matthew C. "Fatigue damage development in 3D woven glass and glass/carbon composites." Thesis, University of Surrey, 2018. http://epubs.surrey.ac.uk/845964/.

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A number of studies have been conducted on 3D non-crimp orthogonal woven composites, but their industrial application is still in its infancy. 3D woven composites show increased through-thickness strength, reducing delamination damage, which is often a key failure mechanism for composites under various loading conditions, especially fatigue. This work investigates the fatigue performance and damage development in a 3D non-crimp orthogonal woven composite consisting of three weft tow layers, two warp tow layers, and a through-thickness z-binder that interlaces along the warp-direction. While th

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Hart, M. J. Alexandra. "Action in Chronic Fatigue Syndrome: an Enactive Psycho-phenomenological and Semiotic Analysis of Thirty New Zealand Women's Experiences of Suffering and Recovery." Thesis, University of Canterbury. Social and Political Sciences, 2010. http://hdl.handle.net/10092/5294.

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This research into Chronic Fatigue Syndrome (CFS) presents the results of 60 first-person psycho-phenomenological interviews with 30 New Zealand women. The participants were recruited from the Canterbury and Wellington regions, 10 had recovered. Taking a non-dual, non-reductive embodied approach, the phenomenological data was analysed semiotically, using a graph-theoretical cluster analysis to elucidate the large number of resulting categories, and interpreted through the enactive approach to cognitive science. The initial result of the analysis is a comprehensive exploration of the experienc

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Thibodeau, Elisabeth Gabrielle. "Static and Fatigue Fracture Characterization of Primary and Secondary Bonded Woven E-Glass Composites." Fogler Library, University of Maine, 2007. http://www.library.umaine.edu/theses/pdf/ThibodeauEG2007.pdf.

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40

Amini, Ahmad J. "Static and Fatigue Failure Response of Woven Carbon Fiber Specimens with Double Edge Notches." DigitalCommons@CalPoly, 2010. https://digitalcommons.calpoly.edu/theses/425.

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Carbon fiber composites are continually seeing increased use in aerospace applications. It is necessary to understand their failure modes in order to properly design and perform analysis on structures constructed primarily from them. This thesis studies woven carbon fiber composites with and without double-edge notches in a series of static and fatigue tests performed on an Instron 8801 servo-hydraulic testing system. Specimens were constructed of Advanced Composites Group product # LTM45EL woven carbon fiber pre-preg/epoxy and were cut to approximately 9-inch in length and 1-inch in width. No

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Angrand, Lise. "Modèle d’endommagement incrémental en temps pour la prévision de la durée de vie des composites tissés 3D en fatigue cyclique et en fatigue aléatoire." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLN005/document.

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Les travaux présentés dans ce document s’insère dans le cadre du Projet de Recherche Concerté PRC Composites, financé par la DGAC et impliquant le groupe Safran, l’Onera et un grand nombre de laboratoires du CNRS de le LMT Cachan. Un des objectifs principal du PRC est d’établir des modèles pour la simulation du comportement mécanique, de la durabilité et encore des procédés de fabrication des pièces composites CMC & CMO. Ces travaux de thèse se focalisent sur l’étude du comportement des composites tissés 3D aux sollicitations de fatigue mécanique. Ils font suite aux travaux menés à l’Onera

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Dai, Shuo. "Mechanical characterisation and numerical modelling of 3D woven composites." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/16221.

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Three-dimensional woven composites were developed to improve the through-thickness properties which conventional two-dimensional laminate composites currently lack. However, these textile composites generally show lower in-plane mechanical properties due to fibre crimping, and also encounter modelling difficulties due to the complex geometries. In this thesis, the static and fatigue mechanical behaviour of several types of 3D woven composites were experimentally characterised, the influence of the weave architecture on the mechanical performance was revealed, and meso/macro scale numerical mod

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Wen, Chao. "Bounding Surface Approach to the Fatigue Modeling of Engineering Materials with Applications to Woven Fabric Composites and Concrete." Diss., North Dakota State University, 2011. https://hdl.handle.net/10365/28843.

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It has been known that the nucleation and growth of cracks and defects dominate the fatigue damage process in brittle or quasi-brittle materials, such as woven fabric composites and concrete. The behaviors of these materials under multiaxial tensile or compression fatigue loading conditions are quite complex, necessitating a unified approach based on principles of mechanics and thermodynamics that offers good predictive capabilities while maintaining simplicity for robust engineering calculations. A unified approach has been proposed in this dissertation to simulate the change of mechanical pr

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Bai, Gabriele. "Evaluation par vibrothermographie de l'endommagement de composites tissés." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0055/document.

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Ces travaux de thèse visent à l’application de techniques de vibrothermographie pour les matériaux composites tissés. Ces techniques, déjà développées et appliquées aux matériaux métalliques, sont basées sur la détection de l’échauffement généré dans un matériau mis en vibration en conséquence des effets viscoélastiques et des frottements des fissures. Dans la première partie du manuscrit, une technique de type CND est développée pour analyser l’endommagement diffus d’un composite tissé et pour déterminer une relation entre son état d’endommagement et son comportement thermique. Cette partie e

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Yu, Bo. "Damage characterisation of 3D woven glass-fibre reinforced composites under fatigue loading using X-ray computed tomography." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/damage-characterisation-of-3d-woven-glassfibrereinforced-composites-under-fatigue-loading-using-xraycomputed-tomography(e4d6ee91-e3f5-4b33-b9e7-4367cbbfcf0c).html.

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In the advanced polymer composites reinforced by 3D woven fibre architectures, tows areinterlaced into through-thickness direction to overcome the problems encountered in theapplications of traditional 2D laminates, such as poor interlaminar toughness anddelamination resistance. The understanding of the influence of fibre architectures on thefatigue performance of 3D woven composites is essential in providing guide for the designof fibre architecture. This PhD project is an in-depth study into the fatigue damagemechanisms of 3D woven composites reinforced by two kinds of fibre architectures,na

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Muller, Laura. "Estimation accélérée des performances en fatigue de matériaux et structures composites thermoplastiques par le suivi de leur auto-échauffement." Thesis, Ecole centrale de Nantes, 2019. http://www.theses.fr/2019ECDN0035/document.

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Cette thèse s’inscrit dans le domaine de la fatigue des matériaux composites. Elle consiste à estimer les performances en fatigue d’un matériau composite thermoplastique tissé, en fibres de carbone et matrice PA66, par des essais d’auto-échauffement. Suite à une caractérisation de l’endommagement du matériau sous chargement monotone par un suivi acoustique, thermique et optique, une campagne d’essais de fatigue est réalisée sur deux configurations du matériau, à 0° et à 45°. Plusieurs méthodes de modélisation de la courbe S-N sont proposées, afin de déterminer la limite de fatigue du matériau.

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Rouault, Thomas. "Propagation de coupure en fatigue sur composites tissés – Etude expérimentale et modélisation." Thesis, Toulouse, ISAE, 2013. http://www.theses.fr/2013ESAE0018/document.

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Les pales d’hélicoptère sont des structures composites soumises à un chargement cyclique multiaxial, et leur criticité impose de porter une attention particulière à la tolérance aux dommages. Leur revêtement peut potentiellement présenter des criques suite à certains évènements (impact, défaut, foudre). Ces travaux se focalisent sur un matériau de revêtement donné (tissu de verre) et concernent l’étude de la propagation de coupure (crique) sous chargement cyclique. Les sollicitations de service ont amené à considérer la traction et le cisaillement plan. Une étude expérimentale a été menée afin

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Barbière, Romain. "Comportement en fatigue et optimisation de l’interface d’un composite tissé chanvre/époxy : effet de l’humidité Influence of moisture and drying on fatigue damage mechanisms in a woven hemp/epoxy composite : acoustic emission and micro-CT analysis." Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2020. http://www.theses.fr/2020ESMA0016.

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Les composites à renfort d’origine végétale constituent une alternative écologique aux matériaux composites traditionnels tels que les composites à fibres de verre. Cependant, les renforts d’origine végétale sont fortement hydrophiles par rapport à la matrice polymère. Il est donc nécessaire d’étudier l’influence de l’eau sur le comportement mécanique de ces éco-matériaux.Dans ce travail, trois conditionnements ont été mis en place. Le conditionnement Ambiant correspond à l’étude du composite en environnement ambiant : stockage et essais à l’ambiante. Le conditionnement Eau permet d’étudier le

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Ben, Toumi Rim. "Endommagement par fatigue et durée de vie de structures en matériaux composites à fibres continues pour application liaison au sol." Thesis, Paris, ENMP, 2015. http://www.theses.fr/2015ENMP0064.

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L'allègement des véhicules est un enjeu majeur de l'industrie automobile pour participer, avec l'évolution des motorisations, à la maîtrise des consommations énergétiques et la réduction des émissions de gaz à effet de serre. Dans ce travail, nous nous intéressons à l'introduction des matériaux composites dans les pièces de structure et particulièrement dans le périmètre de la liaison au sol composé d'organes de sécurité active, sujets au phénomène de fatigue multi axiale à grand nombre de cycles.Les matériaux composites présentent une solution séduisante en raison de leurs propriétés mécaniqu

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Malpot, Amélie. "Etude du comportement en fatigue d’un composite à matrice polyamide renforcé d'un tissu de fibres de verre pour application automobile." Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2017. http://www.theses.fr/2017ESMA0002/document.

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Ces travaux de thèse portent sur un composite à matrice polyamide 6,6 (PA66) renforcé d’un tissu de fibres de verre (Sergé 2/2). Dans le but d’une intégration dans des pièces automobiles, on s’intéresse au comportement de ce matériau sous sollicitation cyclique. L’objectif est de mettre au point un critère de fatigue permettant de prédire la durée de vie du composite étudié. Le PA66 étant sensible à l’humidité, il est nécessaire de prendre en compte ce paramètre dans notre étude. Pour cela, le matériau est conditionné selon trois états : un état sec (RH0), un état ambiant (RH50) et un état sat

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