Deformation Model
Mostrando 1-12 de 271 artigos, teses e dissertações.
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1. The Concept of a Rupture Risk Envelope for the Cochleo-Saccular Membranes
Abstract Introduction Alterations in endolymphatic pressure have long been suspected of being associated with the development of endolymphatic hydrops and rupture of the membranous labyrinth. More recently, there has been a focus on how membrane mechanics might contribute to membrane rupture. This is suspected to involve the viscoelastoplastic properties of
International Archives of Otorhinolaryngology. Publicado em: 2022
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2. Efeitos do vento solar na magnetosfera terrestre: uma abordagem didática dos cinturões de Van Allen
Resumo Neste trabalho realizamos uma abordagem didática de aspectos relacionados ao geomagnetismo e como esses aspectos podem ser influenciados pela ação do vento solar. A carência de textos didáticos que promovam explicações em termos de conceitos de física básica foi a principal motivação para esse trabalho. Iniciamos com uma discussão históri
Rev. Bras. Ensino Fís.. Publicado em: 20/01/2020
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3. Strain-deformation Reconstruction of Carbon Fiber Composite Laminates Based on BP Neural Network
The Carbon Fiber Reinforced Polymer (CFRP) laminate structural components used in the aerospace and military domains require high precision and strong stability. Usually the deformation of these structural components is difficult to be measured directly during operation, but the deformation of the CFRP laminate structure can be reconstructed with strain info
Mat. Res.. Publicado em: 14/11/2019
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4. New nonlinear solution of nearly incompressible hyperelastic FGM cylindrical shells with arbitrary variable thickness and non-uniform pressure based on perturbation theory
Abstract In this paper, nonlinear analysis of thick cylindrical shells with arbitrary variable thickness made of hyperelastic FGM with radially variation of material properties in nearly incompressible state under non-uniform pressure loading is presented. Thickness and pressure of the shell vary in axial direction by linear and/or nonlinear functions. The g
Lat. Am. j. solids struct.. Publicado em: 28/10/2019
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5. Reconstruction of Precambrian terranes of Northeastern Brazil along Cambrian strike-slip faults: a new model of geodynamic evolution and gold metallogeny in the State of Bahia
Abstract The Precambrian basement of Northeastern Brazil is the product of Rhyacian block convergence. The main deformation and intrusion of crustal granitoids occurred between 2.15 and 1.8 Ga ago. This large area has been subjected to long-lasting and rather uniform stresses during the Cambrian period. Gold provinces in Bahia represent metallogenetic produc
Braz. J. Geol.. Publicado em: 21/10/2019
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6. Analysis of a car door subjected to side pole impact
Abstract The results of a study on the response of a side impact beam located in a car door to impact loading is presented. The side impact beam is situated in both the front and rear side doors of a vehicle between the inner and outer shells to minimise intrusion into the passenger compartment during a collision whilst absorbing as much impact energy as pos
Lat. Am. j. solids struct.. Publicado em: 30/09/2019
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7. Atomization Characteristics of Droplet and Morphologies of Arc Sprayed Ni-Al Particles and Composition Coatings
Droplet atomization characteristics and its morphology in twin-wire arc sprayed (TWAS) Ni-Al were explored in depth. Both numerical model and theoretical method were built for calculating the process of the droplet deformation and breakup in air flow, which based on the standard k-ε model and the volume of fluid (VOF) dual-phase flow model. The atomization
Mat. Res.. Publicado em: 23/09/2019
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8. Shape change analysis of tensegrity models
Abstract This paper presents a computational strategy for shape change of tensegrity models to achieve the prescribed target coordinates of a set of monitored nodes via forced elongation of cables. Mathematical formulation for incremental equilibrium equations of a tensegrity model during the shape change analysis is derived and presented. An optimization ap
Lat. Am. j. solids struct.. Publicado em: 15/08/2019
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9. Multi-scale representation of plastic deformation in fiber-reinforced materials: application to reinforced concrete
Abstract Here we present a multi-scale model to carry out the computation of brittle composite materials reinforced with fibers, and we show its application to standard reinforced concrete. The computation is carried out within an operator-split framework on the macro-scale, which allows for different failure mechanisms to develop in separate phases, as both
Lat. Am. j. solids struct.. Publicado em: 12/08/2019
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10. The Features of Localized Plasticity Autowaves in Solids
The localized plastic deformation and the law-like regularities underlying its development in solids are considered. The characteristic features of localized plasticity are analyzed for a wide range of materials. Thus a correlation is established between the products of scales and of process rates obtained for the elastic and plastic deformation. It is a fav
Mat. Res.. Publicado em: 08/08/2019
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11. Selection of a Hyper-Elastic Material Model - a Case Study for a Polyurethane Component
Abstract The aim of this study was to select an appropriate material model for a polyurethane rail pad. The considered material was assumed to be hyper-elastic, and model selection was limited only to the Mooney-Rivlin (M-R) material models available in the MSC.Marc/Mentat system. The selection of the most appropriate material model was based on the most acc
Lat. Am. j. solids struct.. Publicado em: 27/06/2019
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12. Depicting the 3D geometry of ore bodies using implicit lithological modeling: An example from the Horto-Baratinha iron deposit, Guanhães block, MG
Abstract The definition of geological domains is essential for mineral exploration and is traditionally done manually, section by section, in a laborious, time consuming and subjective process, to construct a 3D model. The technique referred to as implicit modeling is an option to model deposits in a fast and practical manner. This article presents the litho
REM, Int. Eng. J.. Publicado em: 19/06/2019