Structural Testing
Mostrando 13-24 de 212 artigos, teses e dissertações.
-
13. Effects of the management control system in unethical behaviors
Purpose This study investigates which dimensions of the management control system (MCS) increase the perception of organizational justice and reduce unethical behavior in the perception of managers. The purpose of this paper is to validate the theoretical model of the study of Langevin and Mendoza (2012), testing the theoretical hypotheses formulated by the
RAUSP Manag. J.. Publicado em: 02/05/2019
-
14. Study of cracks in concrete target under deep penetration by a projectile
Abstract A large number of cracks occur in concrete structure after projectile penetration. The study of crack distribution and propagation process is the basis of damage assessment, structural repair and high dynamic fracture mechanism. In this paper, wire saw cutting, X-ray computed tomography (X-CT) and mechanical property testing of damaged concrete were
Lat. Am. j. solids struct.. Publicado em: 14/03/2019
-
15. 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
-
16. Antiphospholipid syndrome and neurofibromatosis type I: a coincidence or new association?
RESUMO | Inúmeros estudos têm relatado anomalias vasculares estruturais e isquemia associada com à neurofibromatose tipo 1 que, acredita-se, resultam da disfunção da neurofibromina, a proteína tipo 1 da neurofibromatose. Casos documentados de síndrome antifosfolípide associada que atendem aos critérios diagnósticos aceitos são excepcionalmente rar
Arq. Bras. Oftalmol.. Publicado em: 2019-03
-
17. Experimental and numerical investigation on the shock characteristics of U-notched ZL205A specimens under dynamic mixed-mode loading
Abstract Shock environment assessment and improvement during stage separation is an important issue of concern in aerospace engineering. This paper focuses on shock response caused by dynamic fracture of aluminum alloy separation plate, which usually undergoes mixed mode loading during separation. Based on Split Hopkinson Tensile Bar (SHTB) apparatus, five g
Lat. Am. j. solids struct.. Publicado em: 01/11/2018
-
18. Analysis of sensor placement in beams for crack identification
Abstract A previous study has shown that the mode shapes of a beam are more sensitive to damage than other vibrational parameters, thus making them better suited for crack identification purposes. However, they have the disadvantage of being more difficult to be measured. To overcome this difficulty, an interesting idea is to monitor changes produced by crac
Lat. Am. j. solids struct.. Publicado em: 29/10/2018
-
19. Production of Ba2AlNbO6 Ceramics and Study of their Stability in Crude Petroleum for the Conservation of Metallic Sensing Elements Used in Petroleum Extraction
In the present work niobium based complex cubic perovskite oxide Ba2AlNbO6 ceramics were produced, characterized and their stability in crude petroleum environment was studied for inert ceramic embedding used in petroleum extraction. Ba2AlNbO6 ceramic powder was prepared by means of thermo-mechanical processing. Structural characteristics of calcined materia
Mat. Res.. Publicado em: 26/07/2018
-
20. Estimación de propiedades mecánicas de chapa de acero inoxidable 304L mediante ensayos SPT
ABSTRACT The mechanical characterization of materials by small specimen testing has growing interest in Structural Engineering. Small Punch Test (SPT) is applied to estimate mechanical properties of samples that can be extracted from components or structures without affecting service operation. In this paper the development of the test device is reported, co
Matéria (Rio J.). Publicado em: 19/07/2018
-
21. Tree community variation in a tropical continental island according to slope aspect and human interference
ABSTRACT Associating description of unrecorded tropical tree community structure to sampling approaches that can help determine mechanisms behind floristic variation is important to further the comprehension of how plant species coexist at tropical forests. Thus, this study had the goals of (i) evaluating tree community structure on the continental island of
An. Acad. Bras. Ciênc.. Publicado em: 2018-03
-
22. Mode I Interlaminar Fracture Toughness Analysis of Co-Bonded and Secondary Bonded Carbon Fiber Reinforced Composites Joints
Aiming to reduce aircraft weight, aeronautic industry seeks alternative materials and processes used to join its different structural parts. An option to traditional methods are high performance adhesive joints, which reduce weight, number of parts and component final cost, also resulting in higher strength structures. Although, the lack of experimental data
Mat. Res.. Publicado em: 05/02/2018
-
23. Mechanical behavior of yttria-stabilized tetragonal zirconia polycrystal: Effects of different aging regimens
Abstract This study aimed to characterize and compare the effect of different aging regimens on surface characteristic (topography and roughness), structural stability (phase transformation) and mechanical performance (Weibull analysis) of a Y-TZP ceramic. Discs (15 × 1.2 mm; VITA In-Ceram YZ) were prepared according to ISO 6872-2015 for biaxial flexural st
Braz. oral res.. Publicado em: 07/12/2017
-
24. Effect of ceramic thickness, grinding, and aging on the mechanical behavior of a polycrystalline zirconia
Abstract Monolithic restorations of Y-TZP have been recommended as a restorative alternative on prosthetic dentistry as it allows a substantial reduction of ceramic thickness, which means a greater preservation of tooth structure. However, the influence of grinding and aging when using a thinner layer of the material is unclear. This investigation aimed to e
Braz. oral res.. Publicado em: 06/11/2017