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Dissertations / Theses on the topic 'Mecanica do dano continuo'

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1

Souza, Luiz Antonio Farani de. "Modelo numérico anisotrópico de remodelação óssea interna fundamentado na mecanica do dano contínuo." reponame:Repositório Institucional da UFPR, 2009. http://hdl.handle.net/1884/18575.

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2

Carniel, Thiago André. "Modelo viscoelástico-viscoplástico com dano acoplado aplicado em análises transientes não lineares de treliças tridimensionais." Universidade do Estado de Santa Catarina, 2013. http://tede.udesc.br/handle/handle/2056.

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Made available in DSpace on 2016-12-12T20:25:11Z (GMT). No. of bitstreams: 1 Thiago Andre Carniel.pdf: 5594070 bytes, checksum: 5e24f59f581ec79c2edb07d9afdd502e (MD5) Previous issue date: 2013-07-12<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>This work presents the development of a numerical formulation for the transient analysis of spatial truss structures considering geometrical and material nonlinearities. The equilibrium problem is formulated using the Principle of the Virtual Power in a current Lagrangian description. The displacement and velocity fields are discre
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3

Maimí, Vert Pere. "Modelización constitutiva y computacional del daño y la fractura de materiales compuestos." Doctoral thesis, Universitat de Girona, 2007. http://hdl.handle.net/10803/7766.

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En el trabajo se definen modelos constitutivos que permiten reproducir el proceso de fallo de estructuras de materiales compuestos en distintas escalas bajo cargas estáticas. <br/>Se define un modelo constitutivo para determinar la respuesta de estructuras de materiales compuestos mediante la teoría de laminados. El modelo es validado mediante un programa de ensayos experimentales con probetas con un agujero central geométricamente similares. Se muestra la capacidad del modelo de detectar el efecto tamaño.<br/>Se define un modelo constitutivo para materiales transversalmente isótropos bajo est
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4

Barbieri, Renato. "Desenvolvimento e aplicação do metodo da função de Green local modificado (MCGFM) para problemas do meio continuo." reponame:Repositório Institucional da UFSC, 1992. https://repositorio.ufsc.br/xmlui/handle/123456789/157748.

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Tese (doutorado) - Universidade Federal de Santa Catarina. Centro Tecnologico<br>Made available in DSpace on 2016-01-08T17:42:40Z (GMT). No. of bitstreams: 1 88965.pdf: 3984550 bytes, checksum: 7f94f2e2e05f1957f0512943e9b70298 (MD5) Previous issue date: 1992<br>Este trabalho pode ser dividido em quatro partes distintas: a formulação matemática e o formalismo do método da função de green local modificado (MLGFM); o estudo de problemas de potenciais; da elastoestática e da placa de MINDLIN. A formulação matemática e o formalismo do MLGFM são obtidos com uso de relações de reciprocidade general
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5

Piccinin, Jorge Luiz. "Modificações no perfil de solo sob plantio direto continuo e com intervenção mecanica sob sucessão e rotação de culturas." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257181.

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Orientador: Carlos Roberto Espindola<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola<br>Made available in DSpace on 2018-08-06T00:13:09Z (GMT). No. of bitstreams: 1 Piccinin_JorgeLuiz_D.pdf: 8786874 bytes, checksum: 8dad73f5093ab76d1710ad9b0c02381e (MD5) Previous issue date: 2005<br>Resumo: Tem-se como objetivo acrescentar esclarecimentos adicionais sobre mecanismos de degradação, transformação e reorganização de atributos morfoestruturais do solo, mediante caracterizações físicas, biológicas e químicas de perfis submetidos a diferentes práticas de m
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6

Elp?dio, Camilla Milena de Ara?jo. "Estudo do dano em cabo de a?o utilizados em equipamentos de transporte vertical." PROGRAMA DE P?S-GRADUA??O EM ENGENHARIA MEC?NICA, 2016. https://repositorio.ufrn.br/jspui/handle/123456789/24548.

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Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2018-01-15T21:40:47Z No. of bitstreams: 1 CamillaMilenaDeAraujoElpidio_DISSERT.pdf: 17725928 bytes, checksum: 6e516f8b9bc9d31d5c3b8d74ac2eaa55 (MD5)<br>Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2018-01-17T13:19:39Z (GMT) No. of bitstreams: 1 CamillaMilenaDeAraujoElpidio_DISSERT.pdf: 17725928 bytes, checksum: 6e516f8b9bc9d31d5c3b8d74ac2eaa55 (MD5)<br>Made available in DSpace on 2018-01-17T13:19:39Z (GMT). No. of bitstreams: 1 CamillaMilenaDeAraujoElpidio_DISSERT.pdf: 17725928 bytes,
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7

Vieira, Andressa de Araújo Porto. "Microdureza aplicada ao estudo do dano em revestimentos compósitos para superfícies metálicas." Universidade Federal da Paraí­ba, 2010. http://tede.biblioteca.ufpb.br:8080/handle/tede/5409.

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Made available in DSpace on 2015-05-08T15:00:05Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 2912303 bytes, checksum: 1801a9b29f733961e785f9de516a1e30 (MD5) Previous issue date: 2010-03-29<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Oil well structures are built by placing a steel casing and by cementing the space (annulus) between the casing and rock formations throughout the geological layers of wellbores. The structural integrity of these systems resides on the cementing operation, which is designed to offer structural support as well as corrosion protection of the
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8

Haveroth, Geovane Augusto. "Análise de sensibilidade semi-analítica complexa geométrica e comportamento elastoplástico acoplado ao dano." Universidade do Estado de Santa Catarina, 2015. http://tede.udesc.br/handle/handle/2070.

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Made available in DSpace on 2016-12-12T20:25:13Z (GMT). No. of bitstreams: 1 Geovane Augusto Haveroth.pdf: 5753124 bytes, checksum: 03000a94208725070d4dd679b75ac321 (MD5) Previous issue date: 2015-11-30<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>In this work, a comprehensive study is developed aiming to the application of the semianalytical sensitivity method using complex variables (SAC) at truss structures considering geometric and material nonlinear behavior. Special emphasis is given to path dependent problems and the appropriate treatment for internal variables up
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9

Blanco, Ibáñez Sergio. "Contribuciones a la simulación numérica del fallo material en medios tridimensionales mediante la metodología de discontinuidades fuertes de continuo." Doctoral thesis, Universitat Politècnica de Catalunya, 2007. http://hdl.handle.net/10803/6867.

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Este trabajo presenta una reformulación de la metodología de discontinuidades fuertes de continuo para la simulación numérica del fallo material de estructuras.<br/>Los objetivos buscados han sido mejorar la robustez de este tipo de análisis numérico y proporcionar una serie de herramientas que garanticen la contabilidad de los resultados obtenidos. <br/>La metodología de discontinuidades fuertes de continuo [51]-[52] es una aproximación numérica al fenómeno de la localización de deformaciones por ablandamiento. Al contrario de las aproximaciones discretas, utiliza un formato continuo tensión-
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10

Iborra, Posadas Joaquim. "ESTIMACIÓ DE LA VULNERABILITAT SÍSMICA D'UNA ZONA RESIDENCIAL I PREDICCIÓ DEL SEU DANY ESPERAT EN FUNCIÓ DE LA INTENSITAT SÍSMICA." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/62592.

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[EN] This thesis proposes a method for assessing the seismic vulnerability of the residential building in Valencia, understood according to the definition of Sandi (1983), and prediction of damage to buildings in terms of seismic intensity. With this aim, we have studied different methods of analysis of vulnerability and damage to the building, ranging from the simplest based on visual observation to others involving the use of computer applications for estimating capacity and demand curves models using push-over. Given the complexity of the models of the behavior of buildings under earthquake
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11

Neto, José Felix da Silva. "Modelagem numérica da interface tubulação/revestimento em poços de petróleo." Universidade Federal da Paraí­ba, 2012. http://tede.biblioteca.ufpb.br:8080/handle/tede/5336.

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Made available in DSpace on 2015-05-08T14:59:42Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 4158784 bytes, checksum: 614ac248aca292bc7e1a840fb03f4a7f (MD5) Previous issue date: 2012-08-13<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>Oil has become one of the greater sources of energy in the contemporary world and ensures that its extraction is done without loss of production wells and structurally reliable is essential. Cementitious coatings of oil wells are used in order to ensure structural support of the wells and corrosion protection. In these structu
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12

Faria, Albert Willian. "Modelagem por elementos finitos de placas compostas: contribuição ào estudo do amortecimento, dano e incertezas." Universidade Federal de Uberlândia, 2010. https://repositorio.ufu.br/handle/123456789/14696.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Doutor em Engenharia Mecânica<br>No estado tecnológico atual, os materiais compostos são cada vez mais utilizados em produtos de alta tecnologia, sobretudo no setor aeroespacial, em virtude de sua resistência/peso superior às dos materiais metálicos, e em virtude de sua elevada rigidez e resistência mecânica à fadiga. Além disso, devido ao seu melhor comportamento ao choque mecânico e à combustão química, as estruturas em material composto oferecem uma boa condição de segurança. Estruturas fabricadas em material composto ou metál
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13

Barros, Alysson R?gis de Freitas. "Comp?sitos h?bridos: desenvolvimento de configura??o e efeitos de umidifica??o." Universidade Federal do Rio Grande do Norte, 2006. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15535.

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Made available in DSpace on 2014-12-17T14:57:43Z (GMT). No. of bitstreams: 1 AlyssonRFB.pdf: 2167882 bytes, checksum: 8299a168b4ffa71ad51d65356a2a5ae5 (MD5) Previous issue date: 2006-12-21<br>The advantage in using vegetable fibres in place of synthetic fibres such as glass fibre, for reinforcements in composites are: biodegradability, low cost, low density, good tenacity, good thermal properties, low energy content and reduced use of instruments for its treatment or processing. Even though, problems related to low mechanical performance of some of the natur
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14

Moreno, Puchalt Jésica. "La iglesia de Santa Catalina de Valencia: Historia, construcción y estructura." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/64074.

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[EN] The Church of Santa Catalina is a unique building within the historical heritage of the city of Valencia due to different aspects. Among them, it sould be noted its medieval origin and its unusual plan layout, because of both the asymmetry of its side chapels and its particular ambulatory with an even number of radial chapels. Moreover, there are uncertainties of its constructive evolution that are reflected on the façade on Lope de Vega square. In addition, there is the importance of its bell tower, which is considered to be a key example of the Valencian Baroque. This study provides
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15

Sabino, Jo?o Marcos. "Avalia??o por pig de perfilagem de danos superfciais nos materiais das paredes de dutos de petr?leo." Universidade Federal do Rio Grande do Norte, 2009. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15589.

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Made available in DSpace on 2014-12-17T14:57:53Z (GMT). No. of bitstreams: 1 JoaoMS.pdf: 1515806 bytes, checksum: fd1b665e0003e03823a56f9ce0f2eaaf (MD5) Previous issue date: 2009-09-11<br>Petr?leo Brasileiro SA - PETROBRAS<br>The modern technology of materials and structural integrity of pipelines requests the use of inspection tools named inspection pigs to detect, localize and measure the length, width and depth dimensions of the thickness losses of walls of buried and underwater pipelines in service. These tools run them internally, performing and recording measurements, with performance
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16

Lima, Mayara Su?lly C?ndido Ferreira de. "Resposta t?rmica de um comp?sito PEEK+PTFE+Fibra de carbono+grafite." Universidade Federal do Rio Grande do Norte, 2012. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15682.

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Made available in DSpace on 2014-12-17T14:58:15Z (GMT). No. of bitstreams: 1 MayaraSCFL_DISSERT.pdf: 5165682 bytes, checksum: c5b249c3b897f27db4e517452be9b9ce (MD5) Previous issue date: 2012-04-30<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>Composites based on PEEK + PTFE + CARBON FIBER + Graphite (G_CFRP) has increased application in the top industries, as Aerospace, Aeronautical, Petroleum, Biomedical, Mechanical and Electronics Engineering challenges. A commercially available G_CFRP was warmed up to three different levels of thermal energy to identify the main damage
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17

"Modificações no perfil de solo sob plantio direto continuo e com intervenção mecanica sob sucessão e rotação de culturas." Tese, Biblioteca Digital da Unicamp, 2005. http://libdigi.unicamp.br/document/?code=vtls000378100.

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