Physical Non Linearity
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. Physical and geometric non-linear analysis using the finite difference method for one-dimensional consolidation problem
Abstract This article presents a numerical model based on the finite difference method for the physical and geometric non-linear analysis of a one-dimensional consolidation problem regarding a saturated, homogeneous and isotropic soil layer with low permeability and high compressibility. The problem is formulated by adopting the void ratio as the primary var
REM, Int. Eng. J.. Publicado em: 2019-06
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2. Knowledge-based digital soil mapping for predicting soil properties in two representative watersheds
ABSTRACT: The estimation of soil physical and chemical properties at non-sampled areas is valuable information for land management, sustainability and water yield. This work aimed to model and map soil physical-chemical properties by means of knowledge-based digital soil mapping approach as a study case in two watersheds representative of different physiogra
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-04
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3. Three theories for reconciling the linearity of egocentric distance perception with distortion of shape on the ground plane
The focus here is on the paradoxical finding that whereas visually perceived egocentric distance is proportional to physical distance out to at least 20 m under full-cue viewing, there are large distortions of shape within the same range, reflecting a large anisotropy of depth and frontal extents on the ground plane. Three theories of visual space perception
Psychol. Neurosci.. Publicado em: 2014-12
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4. Contribuição ao estudo dos pilares com seção transversal em formato geométrico de Lconsiderando a não-linearidade física e geométrica. / Contribution to the study of columns with l-shaped cross sections considering physical and geometric non-linearity.
Pilares de edifícios estão sempre submetidos à flexão composta oblíqua. Este trabalho tem como objetivo comparar, em seções transversais com formato geométrico de L, os resultados obtidos por dois métodos de cálculo: a) Integração numérica na qual, para cada direção principal, são utilizadas curvaturas reais obtidas de diagramas momentocurvat
Publicado em: 2010
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5. Aspectos da não linearidade em fenômenos de ressurgimento por uma técnica não perturbativa
In the present work we apply a semi-classical non-perturbative technique to study revival times in relevant models. First we use a schematic model that is commonly used to simulate the interatomic interaction in Bose-Einstein condensates (BEC). The model has an exact solution and allows us understand the mathematical technique used in this work and its limit
Publicado em: 2009
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6. Sistema Computacional para Análise Avançada Estática e Dinâmica de Estruturas Metálicas
A new computational tool for the advanced static and dynamic analysis of steel framed structures based on the Finite Element Method has been developed and is presented herein. Understanding the static and dynamic behavior of a structure is essential for designing structures that are lighter and slenderer without affecting their safety and quality standards.
Publicado em: 2009
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7. Desenvolvimento de programa livre para análise de pórticos tridimensionais considerando-se a não linearidade geométrica, fissuração do concreto e ligações semi-rígidas
Structural analysis of framed structures using discrete method, wherein, splitting them into elements with simplified considerations, can bring not satisfactory results or end up using very high safety coefficient to the structure. With the growth of computing and microcomputers it is feasible the resolution of structures considering all parts, therefore thr
Publicado em: 2007
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8. Experimental evaluation of the continuous pasteurization control of a orange juice model fluid / Avaliação experimental do controle da pasteurização continua de um fluido modelo de suco de laranja
The goal of this work was the building, instrumentation and implementation of conventional and non-conventional controllers in a HTST (Hight Temperature Short Time) continuous processing prototype of fruit juice. A plate heat exchange with three sections of heat exchange (regeneration, heating and cooling) and a holding tube were used to achieve a holding ti
Publicado em: 2007
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9. CONECTOR DE CISALHAMENTO EM PERFIL FORMADO A FRIO: ANÁLISE VIA MODELAGEM COMPUTACIONAL
Denomina-se sistema misto aço-concreto aquele no qual um perfil de aço (laminado, dobrado ou soldado) trabalha em conjunto com uma laje de concreto, formando uma viga mista. A interação entre o concreto e o perfil de aço pode se dar por meios mecânicos, por atrito, ou, em alguns casos, por simples aderência. Uma das vantagens da utilização de vigas
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/09/2006
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10. DESENVOLVIMENTO E VALIDAÇÃO DE MÉTODOS PARA AVALIAÇÃO DE CLORIDRATO DE FEXOFENADINA / DEVELOPMENT AND VALIDATION OF METHODS FOR EVALUATION OF FEXOFENADINE HYDROCHLORIDE
The fexofenadina is an antihistamine non sedative that acts as antagonistic selective in the outlying receivers H1 of the histamine, being used in the symptomatic treatment of allergic manifestations as medication of first choice. The project in subject has the objective of to determine and to validate methods physical-chemistries, for the evaluation of fexo
Publicado em: 2006
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11. CONECTOR DE CISALHAMENTO EM PERFIL FORMADO A FRIO: ANÁLISE VIA MODELAGEM COMPUTACIONAL
In a composite system, a steel beam (laminated, welded or cold formed) is associated with a concrete slab, forming a composite beam. The interaction between concrete and steel can be mechanical, by friction or, in some cases, only by adherence. One of the major advantages of the composite beams is the increase in strength and stiffness due to association of
Publicado em: 2006
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12. Análise da punção e flechas em lajes maciças sem vigas de concreto armado de acordo com as prescrições da NBR 6118:2003.
This work shows some NBR 6118:2003 prescriptions, intending to study, analyze and discuss the aspects regarding to the determination of the efforts to check the punch and the detailed framework to struggle it and the deflection (arrow), in the systems of flat plates since they had suffered significant changes. It will be done a comparative analysis of consid
Publicado em: 2005