Truss
Mostrando 13-24 de 74 artigos, teses e dissertações.
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13. Application of Short Fibers Reinforced Composites in Power Transmission Coupling
Abstract In this study the use of short glass, carbon and hybrid glass-carbon fibers reinforced polymeric composites in power transmission coupling is investigated. The presented work is generalized to thermoplastic and thermoset polymeric matrix composites. The effects of the constituents weight percentages, and average fibers length on the composite tensil
Lat. Am. j. solids struct.. Publicado em: 2017-10
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14. Heat Transfer Search Algorithm for Sizing Optimization of Truss Structures
Abstract Heat transfer search (HTS) is a novel metaheuristic optimization algorithm that simulates the laws of thermodynamics and heat transfer. In this study, the HTS algorithm is adapted to truss structure optimization. Sizing optimization searches for the minimum weight of a structure subject to stress and displacement constraints. Three truss structures
Lat. Am. j. solids struct.. Publicado em: 2017-03
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15. Non-Linear Three Dimensional Finite Elements for Composite Concrete Structures
Abstract The current investigation focused on the development of effective and suitable modelling of reinforced concrete component with and without strengthening. The modelling includes physical and constitutive models. New interface elements have been developed, while modified constitutive law have been applied and new computational algorithm is utilised. T
Lat. Am. j. solids struct.. Publicado em: 2017-03
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16. Atuação do Líder na Gestão Estratégica de Pessoas: Reflexões, Lacunas e Oportunidades
Resumo A gestão estratégica de pessoas é um tema bastante estudado, enfatizando a relação entre políticas e práticas de gestão e outras variáveis organizacionais. A atuação dos atores organizacionais na gestão é pouco trabalhada, tornando o processo de implementação da gestão de pessoas pouco explorado. O estudo sobre a área de recursos huma
Rev. adm. contemp.. Publicado em: 2017-02
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17. Numerical Study on the Projectile Impact Resistance of Multi-Layer Sandwich Panels with Cellular Cores
Abstract The projectile impact resistance of sandwich panels with cellular cores with different layer numbers has been numerically investigated by perpendicular impact of rigid blunt projectile in ABAQUS/Explicit. These panels with corrugation, hexagonal honeycomb and pyramidal truss cores are impacted at velocities between 50 m/s and 202 m/s while the relat
Lat. Am. j. solids struct.. Publicado em: 2016-12
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18. A Backtracking Search Algorithm for the Simultaneous Size, Shape and Topology Optimization of Trusses
Abstract This paper presents a Backtracking Search Optimization algorithm (BSA) to simultaneously optimize the size, shape and topology of truss structures. It focuses on the optimization of these three aspects since it is well known that the most effective scheme of truss optimization is achieved when they are simultaneously considered. The minimization of
Lat. Am. j. solids struct.. Publicado em: 2016-12
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19. Load Rate Effects in Adhesive Single Lap Joints Bonded with Epoxy/Ceramic Composites
Abstract The present paper is concerned with the analysis of the effect of the loading rate in a particular class of single lap joints used in the oil industry. The adhesive/adherend system consists of ASTM A36 steel plates bonded with an epoxy/ceramic composite. The loading rate sensitivity is analysed considering two different situations: (i) strain contro
Lat. Am. j. solids struct.. Publicado em: 2016-10
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20. Enhanced Biogeography-based Optimization: A New Method for Size and Shape Optimization of Truss Structures with Natural Frequency Constraints
Abstract The current study presents an enhanced biogeography-based optimization (EBBO) algorithm for size and shape optimization of truss structures with natural frequency constraints. The BBO algorithm is one of the recently developed meta-heuristic algorithms inspired by the mathematical models in biogeography science and is based on the migration behavior
Lat. Am. j. solids struct.. Publicado em: 2016-07
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21. Nonlinear Dynamic Analysis of Telescopic Mechanism for Truss Structure Bridge Inspection Vehicle Under Pedestrian Excitation
Abstract Nonlinear dynamic analysis of an axially moving telescopic mechanism for truss structure bridge inspection vehicle under pedestrian excitation is carried out. A biomechanically inspired inverted-pendulum model is utilized to simplify the pedestrian. The nonlinear equations of motion for the beam-pedestrian system are derived using the Hamilton's pri
Lat. Am. j. solids struct.. Publicado em: 2016-06
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22. Kelvin Viscoelasticity and Lagrange Multipliers Applied to the Simulation of Nonlinear Structural Vibration Control
Abstract This study proposes a new pure numerical way to model mass / spring / damper devices to control the vibration of truss structures developing large displacements. It avoids the solution of local differential equations present in traditional convolution approaches to solve viscoelasticity. The structure is modeled by the geometrically exact Finite Ele
Lat. Am. j. solids struct.. Publicado em: 2016-05
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23. Evaluation of CHS tubular KK joints
Abstract The widespread use of tubular sections in regions like Western Europe and North America in addition structural and aesthetical reasons can be attributed to the high degree of development of their production technology. Despite this fact their use in Brazil in the past was limited to a few spatial roofs. Currently, the situation in the Brazilian mark
Lat. Am. j. solids struct.. Publicado em: 2015-11
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24. A Cultural Algorithm for Optimal Design of Truss Structures
Abstract A cultural algorithm was utilized in this study to solve optimal design of truss structures problem achieving minimum weight objective under stress and deflection constraints. The algorithm is inspired by principles of human social evolution. It simulates the social interaction between the peoples and their beliefs in a belief space. Cultural Algori
Lat. Am. j. solids struct.. Publicado em: 2015-09