Axial Force Resistance
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Optimization of reinforced concrete polygonal sections under biaxial bending with axial force
Abstract Concrete is the world’s most utilized material for production of the structural elements employed in civil construction. Due to its low tensile strength and brittle nature it is reinforced with steel bars forming the reinforced concrete (RC structure). Linear elements of reinforced concrete are commonly employed in multi-story buildings, bridges,
Lat. Am. j. solids struct.. Publicado em: 04/10/2018
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2. Effects of alpha-tocopherol on fracture resistance after endodontic treatment, bleaching and restoration
Abstract This study evaluated the effects of 10% alphatocopherol on the fracture resistance of endodontically treated teeth subjected to tooth bleaching with hydrogen peroxide and immediately restored with composite resin. Fifty bovine incisors were selected, including 10 sound teeth that constituted the control group (G1 (C)). The remaining 40 teeth, which
Braz. oral res.. Publicado em: 20/05/2016
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3. Resistance and elastic stiffness of RHS "T" joints: part I - axial brace loading
Abstract This paper presents a study on the behaviour of welded "T" joints between RHS sections under brace axial loading. A finite element model was developed to investigate the influence of some geometrical variables on the joint's response. The brace load (always in tension) was incremented up to joint failure, while the chord was kept unloaded. In the co
Lat. Am. j. solids struct.. Publicado em: 2015-11
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4. Resistance and Elastic Stiffness of RHS "T" Joints: Part II - Combined Axial Brace and Chord Loading
Abstract This paper deals with the behaviour of welded "T" joints between RHS sections submitted to tension brace loading combined with chord axial loading. In the companion paper (part I) a finite element model and a study without axial load in the chord, focusing on the joint behaviour as a function of the significant geometrical variables, were presented.
Lat. Am. j. solids struct.. Publicado em: 2015-11
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5. Stability of concrete beam-columns under follower forces
An axial follower force acting on the free end of a beam-column is known to remain tangential to its elastica at that point. Elastic beam-columns exhibit infinitely high buckling resistance to static compressive follower load. Loss of their dynamic stability is known to occur at critical follower loads, by flutter characterized by vanishing lateral displacem
Lat. Am. j. solids struct.. Publicado em: 2014-10
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6. Flexão normal composta em seções retangulares de concreto armado em situação de incêndio
This work presents a general structural design method for reinforced concrete elements subjected to fire according to the Brazilian Standard ABNT NBR 15200:2004. The developed method evaluates reinforced concrete rectangular cross-sections subjected to compound flexure for different fire resistance required times specified by the Brazilian Standard ABNT NBR
Publicado em: 2009
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7. On the behaviour of single-span steel beams under uniform heating
Structures’ load resistance is reduced when subject to high temperatures in fire. Nevertheless, it is not enough to take into account strength and modulus of elasticity reduction. One must know with great accuracy the behaviour of the structures including the realistic boundary conditions at high temperatures, in order to determine for safe and of low cost
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2007-03
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8. Análise Paramétrica de Ligações com Placa de Extremidade em Estruturas de Aço Submetidas a Momento Fletor e Força Axial / Parametrical Analysis of Structural Steel Endplate Joints Subjected to Bending Moment and Axial Force.
Traditionally, the steel portal frame design assumes that beam-to-column joints are rigidor pinned. Rigid joints, where no relative rotations occur between the connected members, transfer not only substantial bending moments, but also shear and axial forces. On the other extreme, pinned joints, are characterised by almost free rotation movement between the c
Publicado em: 2006
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9. Resistencia inicial a remoção, por tração axial, de parafusos de titanio, de 2mm de diametro, inseridos bicorticalmente em tibias de coelhos
The purpose of the present work was to evaluate the initial resistance to the removal through traction, of 2 mm diameter Titanium screws, inserted bicortically into the frozen tibias of 30 New Zealand Breed of rabbits. Thirty screws, 10 in each of 3 different commercial marks, were tested. All of them were made of pure Titanium. In all of the groups (I, II a
Publicado em: 1998