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Test protocol and rheological model influence on determining the rheological properties of cement pastes
(2021-12-01)
The rheological characterization of cement pastes, mortars and concretes considers the rheological parameters of complex suspensions, composed by different materials, which interact both chemically, and physically. In ...
To-and-fro motion of a submerged plate above an erodible bed
(Springer, 2017-11)
The interaction between the oscillatory flow, driven by the to-and-fro translational movement of a vertical surface-piercing plate, and the (planar) granular bed is experimentally addressed. Focus is paid to the problem ...
Resistência ao cisalhamento de vigas de concreto autoadensável com adição de fibras de aço
(Universidade Tecnológica Federal do ParanáToledoBrasilEngenharia CivilUTFPR, 2020-08-12)
The use of self-compacting concrete has increased in recent decades due to several reasons, the main ones being its high fluidity, which dispenses with the use of concrete vibrators, ease of concreting and higher quality ...
Mouthguard use and TMJ injury prevention with different occlusions: A three-dimensional finite element analysis
(2020-01-01)
Background/Aims: There is a lack of data regarding the mechanical responses of the temporo-mandibular joints during an impact to the orofacial region. The aim of this study was to analyze the biomechanical effects of wearing ...
Photoelastic comparison of single tooth implant-abutment-bone of platform switching vs conventional implant designs
(2011-03-01)
Objectives: The maintenance and stability of peri-implantar soft tissue seem to be related to the crestal bone around the implant platform and different implant designs connections might affect this phenomenon. The aim of ...
Photoelastic comparison of single tooth implant-abutment-bone of platform switching vs conventional implant designs
(2011-03-01)
Objectives: The maintenance and stability of peri-implantar soft tissue seem to be related to the crestal bone around the implant platform and different implant designs connections might affect this phenomenon. The aim of ...
Medidas reológicas em pasta geopolimérica: efeito da geometria e protocolo de ensaio
(Universidade Federal de Santa MariaBrasilEngenharia CivilUFSMPrograma de Pós-Graduação em Engenharia CivilCentro de Tecnologia, 2023-01-26)
Understanding and optimizing the rheological properties of cementitious materials allows us to
determine and precisely adjust their workability. In addition, understanding its flow enables
predicting the behavior of the ...
Estudo dos limites de escoamento e de viscoelasticidade linear de material tixotrópico com tensão limite de escoamento
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Mecânica e de MateriaisUTFPR, 2020-03-06)
Yield stress materials are characterized by presenting predominantly elastic behavior for low mechanical stress and predominantly viscous behavior for high mechanical stress. The yield stress is usually used to characterize ...
Análise da influência da máxima taxa de deformação na morfologia dos cristais de parafina e na irreversibilidade das características reológicas de óleos parafínicos
(Universidade Tecnológica Federal do ParanáCuritibaBrasilGraduação em Engenharia MecânicaUTFPR, 2018-07-03)
Waxy oil shows paraffin precipitation at low temperatures during its production, which leads to a significant increase in its viscosity, the paraffin’s deposition in the inner surface of the pipelines and the oil’s gelation ...