Risers are considered vital parts in Fluidized Catalytic Cracking (FCC) conversion units. It is inside the riser reactor that the heavy hydrocarbon molecules are cracked into lighter petroleum fractions such as liquified ...

Aqui descrevemos as técnicas aplicadas na implantação e manutenção do Programa de Informação Costeira (PIC on—line), que manteve um ondógrafo fundeado ao largo da Ilha de Santa Catarina entre Dezembro de 2001 e Novembro ...

The hydrodynamic and morphodynamic parameters of a region in southern Brazil were determined by collecting sediments with stream traps (bedload and suspended load) in the surfzone and capturing images, studying topography, ...

In the processing of high performance composite materials, the RTM process has been widely used by many sectors of the industry. This process consists in injecting a polymeric resin through a fibrous reinforcement arranged ...

In the RTM light composite manufacturing process, inorganic fillers are commonly added to the resin to reduce cost and alter the final composite properties, especially rigidity, even though they also adversely affect ...

Resin Transfer Molding (RTM) is largely used for the manufacturing of high-quality composite components and the key stage during processing is the resin infiltration. The complete understanding of this phenomenon is of ...

Resin Transfer Molding (RTM) is one of the composite manufacturing technique that consists in injecting a resin pre-catalysed thermosetting in a closed mold containing a dry fiber preform, where the resin is impregnated. ...

In the presented work, it is made a numerical study about the main physical principle of a solar chimney (SCPP – Solar Chimney Power Plant) and the influence of some geometric parameters on the available power in the SCPP. ...

This paper considers the stochastic finite element analysis of structures resulting from random spatial variability of material properties, when they are subjected to loads of deterministic nature. Direct Monte Carlo ...

The Newton-Raphson method is used for the nonlinear analysis of reinforced concrete structures. Three extrapolation formulas for displacements are developed in order to accelerate the convergence of the iterative scheme. ...

Cracking analysis by the finite element method may be accomplished using a continuum damage theory, but results are strongly affected by the adopted finite element mesh. A reduced tensile strength has been proposed in order ...

A methodology for the probabilistic analysis of concrete gravity dams is presented, Concrete properties and seismic excitation are considered as random variables. The seismic excitation is considered as a non-stationary ...

The cracking phenomenon in concrete gravity dams during the construction phase is analysed in this work. Stresses due to the self-weight of the dam, thermal gradients, creep and drying shrinkage are computed, taking into ...

The subject of this work is the probabilistic finite element analysis of reinforced concrete columns. Concrete properties are represented as homogeneous Gaussian random fields. The yield stress and position of steel ...

Neste trabalho é feita uma análise do comportamento das lajes nervuradas de concreto armado. Uma série de resultados experimentais descritos por outros autores é utilizada para verificar os modelos de cálculo usuais. A ...

Neste trabalho apresenta-se um método bilinear para análise de lajes maciças e de lajes nervuradas de concreto armado. O modelo permite obter as deformações das lajes no estádio I e no estádio II. Para as lajes nervuradas, ...

O objetivo deste trabalho é avaliar a precisão de alguns métodos simplificados para o cálculo de flechas em vigas de concreto armado. Para isto, desenvolve-se um modelo para análise não-linear, o qual é utilizado na aferição ...

The simplified methods of CEB and of ACI for prediction of deflections of reinforced concrete beams are analyzed in this work. Obtained results with those methods are compared with those obtained through a nonlinear ...

Neste trabalho é aplicada uma metodologia para encontrar o número adequado de rebocadores para atender ao Porto do Rio Grande, de modo a obter economia e satisfação dos clientes, fazendo uso da técnica de modelagem de ...

The simplified method of ACI for prediction of deflections of reinforced concrete beams is analyzed in this work. Results obtained with this method are compared with those obtained through a nonlinear analysis. Additional ...