Residual Stress
Mostrando 13-24 de 205 artigos, teses e dissertações.
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13. Anesthetic induction of juveniles of Rhamdia quelen and Ctenopharyngodon idella with Ocimum micranthum essential oil
RESUMO: Os anestésicos são eficazes para reduzir ou minimizar o estresse nas operações de manuseio relacionadas à piscicultura. Com o objetivo de evitar efeitos residuais de fármacos sintéticos, vários agentes naturais, como óleos essenciais (OEs), têm sido testados. O objetivo deste estudo foi determinar a concentração ótima do OE de Ocimum mic
Cienc. Rural. Publicado em: 11/02/2019
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14. Failure Theories and Notch Type Effects on the Mechanical Properties of Jute-Glass Hybrid Composite Laminates
This study aimed to analyze the mechanical properties and damage characteristics in uniaxial tensile loading of two hybrid composite laminates consisting of an ortho-therephthalic polyester matrix reinforced by bidirectional jute fabrics and E-glass fibers, with different configurations and types of geometric discontinuities in the longitudinal section, char
Mat. Res.. Publicado em: 31/01/2019
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15. Effect of Solid Solution + Double Ageing on Microstructure and Properties in the Layer by Layer of the Z-Y Interface of Inconel 718 alloys Fabricated by SLM
The microstructure in the Z-Y surface of Inconel 718 alloys fabricated by selective laser melting (SLM) shows the relatively homogeneous and irregular fine grain structure after the heat treatment process of 1050ºC solid solution + double ageing. A large number of bulk precipitates were observed on the grain boundary, and the typical dendritic crystallizati
Mat. Res.. Publicado em: 11/10/2018
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16. Fatigue Life and Residual Strength prediction of GFRP Composites: An Experimental and Theoretical approach
Abstract This paper presents the fatigue behavior of Glass Fiber Reinforced Polymer (GFRP) composites at constant amplitude tension-tension loading conditions. A two parameter residual strength and fatigue life model has been proposed by accounting the effect of stress ratio when the structure undergoes continuous loading. A model is also developed to predic
Lat. Am. j. solids struct.. Publicado em: 30/07/2018
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17. The Influence and Mechanism of Residual Stress on the Corrosion Behavior of Welded Structures
To study the influence of residual stress on the corrosion behavior of welded structures, methods such as residual stress measurement, microstructure observation, and corrosion morphology observation were used. The energy transformation model and corrosion-resistance constant model were utilized to reveal the mechanism of residual stress on the welded struct
Mat. Res.. Publicado em: 26/07/2018
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18. Measurement of Residual Stresses in Welded Joints by DCP Method
Residual stresses on welded joints have been studied by several methods. In this present work, residual stresses was measured by a novel methodology under development named Displacement of Coordinated Points (DCP). To evaluate anisotropy effects in steel plates, two directions of the weld bead were considered: Welding was performed in both parallel and trans
Mat. Res.. Publicado em: 16/07/2018
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19. Effect of Residual Stresses of GTA Welding for Dissimilar Materials
The purpose of the present work is to understand the evolution of residual stresses in weldments. The study made to weld the multipass dissimilar of Nickel-based superalloy Inconel 625 and stainless steel 316L using Continuous Current Gas Tungsten Arc Welding (CCGTAW) and Pulsed Current Gas Tungsten Arc Welding (PCGTAW) process employing ERNiCrMo-3 and ERNiC
Mat. Res.. Publicado em: 25/06/2018
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20. The Effect of Controlled Shot Peening on the Microstructure and Fatigue Behavior of Wet Copper-Based Powder Metallurgy Friction Plates
The effects of shot peening treatments on the microstructure and fatigue behavior of the teeth root in wet copper-based powder metallurgy friction plates were investigated and an efficient method for selecting optimal shot peening parameters for friction plates was proposed. Different experimental processes including microscopy observation, microhardness, ro
Mat. Res.. Publicado em: 07/05/2018
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21. Growth Stress in Peltophorum dubium and its Correlation with the Growth Variables
ABSTRACT The exploitation of valuable native timber species in forest restoration projects has emerged as a promising strategy to make restoration financially viable. There are few studies regarding the quality of timber from restoration plantations. The aim of this study was to analyze growth stresses by determining the longitudinal residual strain (LRS) a
Floresta Ambient.. Publicado em: 19/03/2018
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22. The Back Stress Behavior Study Analyzed in Residual Stress of Welded Naval Plates in Different Lamination Directions and Different Thermal Contributions
The lamination process adds the anisotropy characteristic in the final product. This anisotropy influences the yield strength according to the direction in question, the difference between the value of the yield tension in one direction and the value of the yield tension in another direction referred to as the back stress. Naval plates were welded by the GMA
Mat. Res.. Publicado em: 18/12/2017
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23. Evaluation of the Influence of Surface Finishing on the Corrosion Resistance of HVOF Applied Inconel 625 Coatings on Steel
In this work, the corrosion resistance of Inconel 625 coatings applied to AISI 4140 steel plates was evaluated. Coatings were produced by High Velocity Oxygen Fuel (HVOF) by use of two different equipment which use either kerosene (liquid) or propane (gas) as fuel. The resulting coatings were evaluated in two conditions: as-deposited and after a surface fini
Mat. Res.. Publicado em: 18/12/2017
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24. Welded Joints' Heat Affected Zone's Extension Prediction by Switching Welding Parameters
Choosing welding parameters is an important step in welding process, directly influencing in the heat input provided to welded joints. This heat input value, along with temperature distribution in welded joints, provides, to the drafter, conditions of predicting the Heat Affected Zone (HAZ) extension, the kind of microstructure to be formed, and therefore, t
Mat. Res.. Publicado em: 30/11/2017