Dissertations / Theses on the topic 'Damage'
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Jackson, Robert. "Thresholds of damage for properties damaged by ground subsidence." Thesis, Nottingham Trent University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324729.
Full textKelley, Donald M. "The integration of nonstructural methods into flood loss reduction programs : an evaluation of a remaining obstacle /." This resource online, 1986. http://scholar.lib.vt.edu/theses/available/etd-08222008-063409/.
Full textYork, Brenna Nicole. "REASONABLE DAMAGE." Miami University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=miami1407149432.
Full textSunter, Nicola. "DNA Damage Responses." Thesis, University of Newcastle Upon Tyne, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.489314.
Full textKanich, Ondřej. "Fingerprint Damage Simulation." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2014. http://www.nusl.cz/ntk/nusl-236148.
Full textBandini, Chiara. "FE-numerical modelling of damage in wood using continuum damage mechanics." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
Find full textDixit, Akash. "Damage modeling and damage detection for structures using a perturbation method." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/43575.
Full textLie, Simon Charles. "Damage resistance and damage tolerance of thin composite facesheet honeycomb panels." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/41236.
Full textLloyd, James C. "Impact damage and damage tolerance of fibre reinforced advanced composite laminate structures." Thesis, Loughborough University, 2002. https://dspace.lboro.ac.uk/2134/6891.
Full textPreisler, Andreas [Verfasser]. "Efficient Damage Detection and Assessment Based on Structural Damage Indicators / Andreas Preisler." Düren : Shaker, 2020. http://d-nb.info/1205239669/34.
Full textSoyarslan, Celal. "Modelling Damage For Elastoplasticity." Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610300/index.pdf.
Full textWacharasindhu, Tongtawee. "Fuse holder damage investigation." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4599.
Full textThe 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. Title from title screen of research.pdf file (viewed on August 29, 2007) Includes bibliographical references.
Boddy, Rachael Louise. "Damage in energetic materials." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708696.
Full textPywell, Stephanie Mary. "Compensation for vaccine damage." Thesis, University of Hertfordshire, 2001. http://oro.open.ac.uk/43537/.
Full textКононенко, Микола Григорович, Николай Григорьевич Кононенко, and Mykola Hryhorovych Kononenko. "Хірургічна тактика Damage control." Thesis, Видавництво СумДУ, 2009. http://essuir.sumdu.edu.ua/handle/123456789/6401.
Full textJeffsell, Björn. "Game Balance by Scaling Damage : Scaling Game Difficulty by Changing Players Damage Output." Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5022.
Full textFazendeiro, Marta Sofia Pereira Pingarilho. "DNA damage induced by acrylamide: roe of genetic polymorphisms in DNA damage levels." Doctoral thesis, Faculdade de Ciências Médicas. UNL, 2013. http://hdl.handle.net/10362/10000.
Full textKim, Daewon. "Phased Array Damage Detection and Damage Classification in Guided Wave Structural Health Monitoring." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/77073.
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Langerak, Petra. "@DNA damage tolerance from error free UV-damage bypass to mutagenesis of immunoglobulin genes /." [S.l. : Amsterdam : s.n.] ; Universiteit van Amsterdam [Host], 2007. http://dare.uva.nl/document/.
Full textFassin, Marek [Verfasser]. "Modeling of gradient-extended anisotropic damage using a second order damage tensor / Marek Fassin." Düren : Shaker, 2019. http://d-nb.info/1225653886/34.
Full textCeseracciu, Luca. "Contact Damage on Ceramic Laminates." Doctoral thesis, Universitat Politècnica de Catalunya, 2008. http://hdl.handle.net/10803/6057.
Full textLas aplicaciones óptimas de estos materiales son las que están relacionadas con las propiedades superficiales; por eso la respuesta a las cargas por contacto son especialmente importantes para caracterizar las propiedades mecánicas y para mejorar el diseño de cerámicos composites avanzados.
Las técnicas de indentación Hertziana son herramientas muy útiles para estudiar este tipo de carga, que por otro lado es difícil de caracterizar por ensayos mecánico tradicionales. El daño por contacto en materiales frágiles aparece principalmente como grietas anillo en la superficie, que pueden desarrollarse como grietas cono, características de este tipo de carga. Este agrietamiento es perjudicial para la funcionalidad del material, y puede llevar al fallo de la pieza. Las cerámicas tenaces, por otro lado, pueden presentar un daño, cuasi-plástico, que se genera debajo la superficie en forma de microagrietamento, y que es causa de deformación inelástica.
En esta tesis, se caracteriza la resistencia al daño por contacto materiales cerámicos en base alúmina, incluyendo todos los aspectos de ese daño, desde la aparición de fisuras superficiales, a la propagación de grietas frágiles en la primera capa y su influencia sobre la resistencia del material, hasta el fallo inducido por carga de contacto. Se comparan medidas experimentales con análisis a los Elementos Finitos de los parámetros involucrados en cada caso, lo que permite formular pautas para una correcta caracterización y diseño de cerámicas multicapas avanzados.
Se vio que la presencia de tensiones residuales es efectiva en mejorar la resistencia a la formación de grieta anillo, sea generada por cargas monotónicas, cíclicas o estáticas.
La alta resistencia frente a este último tipo de carga revela que existen mecanismos de puenteo intergranular que se oponen a la formación de grietas, lo que era inesperado por el tamaño de grano fino, y que se atribuye a un efecto de grieta corta, comparada con la microestructura. Ensayos cíclicos de larga duración mostraron, por otro lado, que en los materiales multicapas aparece daño superficial más severo que en los monolíticos, lo que sugiere un cambio del daño predominante hacía una degradación superficial producida por cuasi-plasticidad.
Las tensiones residuales afectan tanto la longitud como el ángulo de la grieta cono. Se modeló el problema mediante Elementos Finitos y algoritmos de propagación de grieta, lo que permitió predecir el crecimiento de grieta en función tanto de las tensiones residuales, como de otros parámetros microestructurales, y determinar del ángulo de la grieta cono en materiales policristalinos.
La respuesta a cargas remotas de materiales indentados, en otras palabras la degradación de la resistencia, se ve afectada por la geometría de la grieta cono, y por otros factores que son consecuencia de la estructura laminar, tales como las tensiones residuales y la redistribución de carga por el desajuste elástico entre capas. Asimismo, la resistencia por contacto, o sea la resistencia a compresión roma localizada, se ve mejorada en materiales laminares, como consecuencia de las tensiones residuales. Sin embargo, se evidenció que existe el riesgo de que se genere tensión elevada en las capas interiores bajo ambos tipos de carga, y se propusieron consideraciones generales sobre el diseño de materiales laminares.
En definitiva, se consiguió una caracterización exhaustiva de las propiedades de contacto mecánico de los materiales estudiados, y se amplió y mejoró el conocimiento de la propagación de grieta en materiales frágiles policristalinos.
The use of ceramic materials in many industrial fields is spread and ever-increasing, for their excellent properties, either mechanical, thermal, tribological or biological. However, their intrinsic brittleness and lack of reliability are obstacles to further spreading these materials in applications where structural resistance is required. To build multilayered composite structures is a promising way which aims to increase the reliability of ceramics. As it is common in composite materials, layered materials allow the mechanical properties to be superior to those of the constituent materials, in the studied case due to the presence of compressive residual stress in the surface.
The best applications for such materials are those related to the surface properties; for this reason the response to contact loading is especially important to characterize the mechanical properties and to assist in the design of advanced ceramic composites. Hertzian indentation techniques provide a powerful tool to study such type of loading, which is otherwise difficult to characterize with the traditional mechanical testing methodologies.
Contact damage in brittle materials appears mainly as surface ring-cracks, which can develop in a characteristic cone crack. Such fissuration is detrimental to the functionality of the material, and can lead to the failure of the component. Tough ceramics often present another type of damage, the so-called quasi-plasticity, generated as subsurface microcracking and which is cause of inelastic deformation.
In this thesis, alumina-based ceramic laminates were characterized in their resistance to contact damage in all its aspects, starting from the appearance of surface fissures, to the propagation of brittle cracks in the first layer and its influence on the material strength, to the contact loadinginduced failure. Experimental measurements were coupled with Finite Element analysis of the involved parameters, which assisted in formulating comprehensive guidelines for the correct characterization and the design of advanced multilayered ceramics.
The presence of residual stress in ceramic laminates proved to be effective in improving the material resistance to the ring cracking, generated by monotonic, cyclic and longlasting tests.
The better resistance to these latter revealed the existence of grain bridging hindering the crack formation, unexpected in fine-grained alumina and which was related to the small crack character of the ring crack. Longer lasting cyclic tests showed that more severe damage appears in the multilayered materials than in the monolithic one, suggesting a modification of the redominant damage mode to quasi-plastic-derived surface degradation.
Propagation of long cone cracks is affected by residual stress in both the length and angle. An automatic Finite Element model of crack propagation allowed to predict crack growth as a function of both the extrinsic residual stresses and of microstructural parameters, which helped address the long-open question of the cone crack angle on polycrystalline materials.
The response to remote loading of indented materials, in other words the strength degradation, is conditioned by the cone crack geometry, as well as by other factors deriving from the laminated structure, such as the presence of residual stress itself and the load redistribution due to the elastic mismatch between layers. Similarly, the contact strength, i.e. the resistance to local blunt compression, is improved in the composite materials as a consequence of the residual stresses. Nevertheless, the risk of high stress in the lower tensile layers was highlighted for both types of loading and general consideration on the design of laminated materials were proposed.
In the overall, a comprehensive characterization of the contact properties of the studied materials was achieved, and the understanding of crack propagation on brittle polycrystalline materials was broadened and improved.
Suzuki, Kiyoshi. "Cold Ischemic Damage to Bone." Thesis, Thieme Medical Publishers, 1991. http://hdl.handle.net/2237/16724.
Full textHåkansson, Pelle. "Ribonucleotide reductase and DNA damage." Doctoral thesis, Umeå universitet, Institutionen för medicinsk kemi och biofysik, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-706.
Full textAlmaskari, Fahad. "Modelling Damage in Composite Structures." Thesis, University of Manchester, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.525981.
Full textYang, Weidong. "Oxidative damage of endothelial cells." Thesis, University of Leicester, 1999. http://hdl.handle.net/2381/29603.
Full textGammage, Justin Wilkinson D. S. "Damage in heterogeneous aluminum alloys /." *McMaster only, 2002.
Find full textHåkansson, Pelle. "Ribonucleotide reductase and DNA damage /." Umeå : Medicinsk biokemi och biofysik, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-706.
Full textWu, Jiangmei. "Blue light induced retinal damage /." Stockholm, 2004. http://diss.kib.ki.se/2004/91-7140-058-3/.
Full textXue, Hanqin. "Transboundary damage in international law /." Cambridge [u.a.] : Cambridge Univ. Press, 2003. http://www.gbv.de/dms/spk/sbb/recht/toc/353846376.pdf.
Full textLacy, Thomas E. Jr. "Distribution effects in damage mechanics." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/15937.
Full textMatemilola, Saka Adelola. "Impact damage to composite materials." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319939.
Full textDimant, Ron A. "Damage mechanics of composite laminates." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338020.
Full textShaibani, S. J. "Electron irradiation damage of spinal." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371580.
Full textChatham, J. C. "Biochemical aspects of myocardial damage." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376900.
Full textSubramani, Dharmaraj. "Ship design for damage survivability." Thesis, University of Newcastle Upon Tyne, 1995. http://hdl.handle.net/10443/484.
Full textJohnstone, Elaine Claire. "Ifosfamide metabolism and DNA damage." Thesis, University of Newcastle Upon Tyne, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264417.
Full textAlbassam, Mohammad. "Damage models and their applications." Thesis, University of Sheffield, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327665.
Full textCrockett, R. G. M. "Electrostatic damage to semiconductor devices." Thesis, University of Southampton, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356056.
Full textManson, Joanna. "Trauma : damage recognition and response." Thesis, Queen Mary, University of London, 2013. http://qmro.qmul.ac.uk/xmlui/handle/123456789/27204.
Full textCockerill, Aaron. "Damage detection of rotating machinery." Thesis, Cardiff University, 2017. http://orca.cf.ac.uk/105671/.
Full textDissanayake, Amal S. "Electrostatic discharge damage detection method." Thesis, Kansas State University, 1997. http://hdl.handle.net/2097/13512.
Full textTyson, Kyle Stephen. "Damage Stability of Inland Towboats." ScholarWorks@UNO, 2014. http://scholarworks.uno.edu/honors_theses/62.
Full textMalkin, Robert Edward. "Damage tolerant hierarchical composite structures." Thesis, University of Bristol, 2011. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.557974.
Full textBakun, O. V., and Y. D. Tymochko. "TREATMENT OF AUTOIMUNNE OVARIAN DAMAGE." Thesis, Буковинський державний медичний університет, 2015. http://dspace.bsmu.edu.ua:8080/xmlui/handle/123456789/9655.
Full textКафедра акушерства та гінекології
Bakun, O. V., V. G. Kupchanko, and R. Holyk. "TREATMENT OF AUTOIMUNNE OVARIAN DAMAGE." Thesis, Ужгородський національний університет, 2015. http://dspace.bsmu.edu.ua:8080/xmlui/handle/123456789/9644.
Full textКафедра акушерства та гінекології
Baker, Christopher R. "Assessing Damage in Composite Materials." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1390315001.
Full textBreadmore, Karen Nicola. "The ecology of floral damage." Thesis, Keele University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296076.
Full textCiomocos, M. T. "Micromechanics of agglomerate damage processes." Thesis, Aston University, 1996. http://publications.aston.ac.uk/14149/.
Full textArcher, Adam. "Radiation damage in ceramic wasteforms." Thesis, University of Bristol, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.702125.
Full textLee, Hao. "Damage modelling for composite structures." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/damage-modelling-for-composite-structures(ee416524-935c-487d-bcd5-282875e6027a).html.
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