Nondestructive Test
Mostrando 13-24 de 48 artigos, teses e dissertações.
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13. Schizolobium Parahyba var. Amazonicum Glulam Classified by Non-destructive Tests
ABSTRACT The objectives of this study were to evaluate the relationship between the density and the EW (modulus of elasticity) values obtained by two non-destructive methods: the accuracy of an expeditious method using a graduated ruler; and the homogenization of elasticity between the methods for glulam elements. In the analysis, displacements were measure
Floresta Ambient.. Publicado em: 08/04/2019
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14. Evaluation of reinforced concrete structural durability in the post-occupation phase - A case study in Novo Hamburgo/RS
Abstract Researches on building performance have been developed over time. The Brazilian Performance Standard - NBR 15575 - deals with the issues of durability applied to residential buildings, establishing criteria and parameters to classify the systems into minimum, intermediate and higher performance levels. In relation to the service life, studies are al
REM, Int. Eng. J.. Publicado em: 2019-03
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15. Continuous Scanning Technique with Barkhausen Magnetic Noise for Carbon Steel Sheets
This work studies the application of a Non-Destructive Inspection Technique (NDIT), based on the Magnetic Barkhausen Noise (MBN), for the detection of non-homogeneous regions in carbon steel plates. It presents the advances in the development of a variant of a new non-destructive magnetic test technique, called Continuous Scanning Magnetic Barkhausen Noise (
Mat. Res.. Publicado em: 10/01/2019
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16. 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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17. Performance of transgenic and conventional soybean plants subjected to bioassay for detection of glyphosate tolerant seeds
Abstract The adoption of genetically modified soybean cultivars is increasing annually around the world, which indicates the excellence of these genotypes. For soybean breeding, the use of such cultivars in a backcross program relies on the ability to detect the transgenic trait. The germination test in a moistened substrate with glyphosate is effective and
Crop Breed. Appl. Biotechnol.. Publicado em: 2018-03
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18. Evaluation of adaptation of ceramic inlays using optical coherence tomography and replica technique
Abstract Optical coherence tomography (OCT) has generally been used as a nondestructive technique to evaluate integrities of composite restorations. We investigated marginal and internal adaptations of ceramic inlay restorations with OCT and compared them to results with the silicone replica technique. Round-shaped class I cavities were prepared on 16 human
Braz. oral res.. Publicado em: 01/02/2018
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19. Nondestructive Microstructural Characterization of Superduplex Stainless Steel by Double Loop Electrochemical Polarization Reactivation Portable Test
Superduplex stainless steels (SDSS) are frequently employed in the petrochemical industries where is required high mechanical strength, toughness, and corrosion resistance. However, these properties can be affected by deleterious phases formation due thermomechanical processes applied in the field during pipes and vessels construction. This work propose the
Mat. Res.. Publicado em: 23/10/2017
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20. Non-resonant Permittivity Measurement Methods
Abstract The measurement of the dielectric properties of materials has been applied in non-destructive tests, humidity measurement, soil analysis and even cancer detection. The methods have been developed for over 70 years based on the interaction of the electromagnetic waves with the material under test. This work presents a general model of scattering para
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2017-03
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21. Comparison of the marginal adaptation of direct and indirect composite inlay restorations with optical coherence tomography
ABSTRACT Objective The purpose of the study was to use the photonic imaging modality of optical coherence tomography (OCT) to compare the marginal adaptation of composite inlays fabricated by direct and indirect techniques. Material and Methods Class II cavities were prepared on 34 extracted human molar teeth. The cavities were randomly divided into two
J. Appl. Oral Sci.. Publicado em: 2016-08
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22. Caracterización de semielaborados de aleaciones de titanio procesadas por extrusión y laminación perforación (proceso Mannesmann)
ABSTRACTFor the manufacture of seamless pipes and tubes are used, as raw materials, hollow bars from hot deformation processes like extrusion and rotary tube piercing (Mannesmann process). Starting from these semi-elaborated products and by means of successive cross sections reductions through tube drawing or tube rolling (cold pilgering) the requested final
Matéria (Rio J.). Publicado em: 2015-09
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23. Optimization and non-destructive test analysis of SS316L weldments using GTAW
This work aims at optimization and analysis of SS316L weldments using TIG Welding, SS316L is selected over other grades because of its lower carbon content and its weldability properties. The welding parameters are being assessed by means of Taguchi's L9 orthogonal array with varying gas flow, current and bevel angle with the predictions achieved the sample
Mat. Res.. Publicado em: 15/11/2013
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24. Medição da velocidade da onda ultrassônica longitudinal em compósitos de fibra de carbono/epóxi / Measurement of the velocity of ultrasonic longitudinal wave in composite carbon fiber/epoxy
O uso dos materiais compósitos pela indústria aeronáutica tem ganhado cada vez mais espaço, sendo, portanto, de grande importância o conhecimento de suas características tanto na fase de projeto quanto na de manutenção. A presença de falhas e tensões não identificadas durante o processo de fabricação ou de manutenção pode significar perdas soc
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/07/2012