Slenderness Ratio
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Field performance of hermaphrodite papaya plants obtained through molecular selection and micropropagation
Abstract Most commercial papaya varieties segregate hermaphrodite and female plants. Growers normally select hermaphrodite plants in the field, due to market preferences. This requires planting multiple plants per site and later thinning of the females, distinguished by flower bud inspection. Micropropagation or the use of molecular markers are two possibili
Crop Breed. Appl. Biotechnol.. Publicado em: 05/12/2019
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2. A GENERALIZED ABOVEGROUND BIOMASS MODEL FOR JUVENILE INDIVIDUALS OF Rhododendron arboreum (SM.) IN NEPAL
ABSTRACT Carbon in the juvenile plants contribute significant share to the total carbon stock in forests. A precise estimate of aboveground biomass of the juvenile stages of trees is therefore very important. We developed a generalized allometric biomass model for the prediction of aboveground biomass of the juvenile individuals of Rhododendron arboreum (Sm.
CERNE. Publicado em: 09/09/2019
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3. Free vibration analysis of nano-tubes consisted of functionally graded bi-semi-tubes by a two-steps perturbation method
Abstract Free vibration of a bimaterial circular nano-tube is investigated. The tube is formed by bonding together a Si3N4/SUS304 functionally graded upper semi tube and a ZrO2/Ti-6Al-4V functionally graded lower semi tube. The material properties of the tube are assumed to vary along the radius according to power law with the power index of upper semi tube
Lat. Am. j. solids struct.. Publicado em: 04/02/2019
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4. Ultimate Strength of Continuous Stiffened Aluminium Plates Under Combined Biaxial Compression and Lateral Pressure
Abstract Ultimate compressive strength of welded stiffened aluminium plates under combined biaxial in-plane compression and different levels of lateral pressure is assessed herein. A numerical database of the ultimate strengths for stiffened aluminium plates is generated at first. Then, regression analysis is applied in order to derive the empirical formulat
Lat. Am. j. solids struct.. Publicado em: 2015-09
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5. Numerical and theoretical studies on cold-formed steel unlipped channels subjected to axial compression
This paper presents both the analytical and theoretical investigations on ultimate load carrying capacity and behaviour of CFS unlipped channels with their ends fixed and subjected to axial compression. The numerical studies have been carried out in the elastic as well as in the plastic ranges of loading. The slenderness ratio of the channels chosen is 40, 8
Lat. Am. j. solids struct.. Publicado em: 2015-01
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6. Study on the capacity of cold-formes steel built-up battened colums under axial compression
This paper presents the theoretical and numerical investigation results of the pin ended cold-formed steel built-up battened columns under axial compression. The finite element model was developed using the finite element software ABAQUS. The comparison of finite element analysis results match with the test results available in the literature shows that the
Lat. Am. j. solids struct.. Publicado em: 2014
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7. Avaliação estatística do erro de modelos de resistência para elementos lineares de concreto armado da ABNT NBR 6118:2007 / Statistical evaluation of resistance modelling error for linear elements of concrete structures of ABNT NBR 6118:2007
In a design of structures, it should be considered the intrinsic uncertainties to the present variables in the structure and in the structural concept, such as intensity and action distribution, mechanic properties of the material, geometric parameters of the structure and structural analysis and calculus models. Thus, the structural safety can only be measu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/08/2012
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8. Flexural motions under accelerating loads of structurally prestressed beams with general boundary conditions
The transverse vibration of a prismatic Rayleigh beam resting on elastic foundation and continuously acted upon by concentrated masses moving with arbitrarily prescribed velocity is studied. A procedure involving generalized finite integral transform, the use of the expression of the Dirac delta function in series form, a modification of the Struble's asympt
Latin American Journal of Solids and Structures. Publicado em: 2010-09
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9. Análise teórico-experimental de pilares mistos preenchidos de seção circular / Theoretical and experimental analysis of circular concrete-filled steel tubular columns
Concrete-filled steel tubular columns are structural elements made of a steel tube filled with structural concrete. The main objective of this work was study the global behavior of concrete-filled steel tubular columns. For this, some variables were evaluated: concrete compressive strength (fc), length-to-diameter ratio (L/D), diameter-to-thickness ratio (D/
Publicado em: 2008
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10. Normative criteria of influence of the Aw / Af and slenderness of soul in the calculation of the resistance to bending of beams slim in elements of steel structures. / Critérios normativos sobre influência da relação Aw/Af e esbeltez de alma no cálculo da resitência à flexão de vigas esbeltas em elementos de estruturas de aço.
Neste trabalho é feita uma análise teórica sobre o comportamento de vigas esbeltas. Uma viga esbelta foi dimensionada com base nos critérios da norma americana Manual of Steel Construction Load and Resistance Factor Design (AISC, 1994), e depois verificada pela norma brasileira NBR 8800: Projeto e execução de estruturas de aço de edifícios (método d
Publicado em: 2007
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11. Normative criteria of influence of the Aw / Af and slenderness of soul in the calculation of the resistance to bending of beams slim in elements of steel structures. / Critérios normativos sobre influência da relação Aw/Af e esbeltez de alma no cálculo da resitência à flexão de vigas esbeltas em elementos de estruturas de aço.
This work contains a theoretical analysis of the behavior of plate girders. A plate girder has been calculated based on the criteria of the American standard Manual of Steel Construction Load and Resistance Factor Design (AISC, 1994), and checked by the Brazilian standard NBR 8800: Projeto e execução de estruturas de aço de edifícios (método dos estados
Publicado em: 2007
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12. Análise do comportamento em serviço de pilares esbeltos de concreto armado
This work presents a mathematical formulation able to describe, in a more efficient way than the conventional methods, the behavior in service of slender reinforced concrete columns of any geometric section submitted to normal flexural forces. An analysis of the columns behavior in service is developed to determine the long-term deformations that occur at ea
Publicado em: 2006