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Mostrando ítems 571-580 de 584
Artículo
Estados singulares de tensión en esquinas multimateriales
(Grupo Español de Fractura, 2007)
La unión entre materiales de distinta naturaleza genera puntos críticos en la estructura donde aparecen cambios bruscos en la geometría y propiedades de los materiales (esquinas multimateriales). La teoría de la Elasticidad ...
Artículo
El método de los elementos de contorno aplicado al cálculo de placas apoyadas
(Asociación Española de Ingeniería Mecánica, 1982-12)
Se analiza el problema de placas elásticas apoyadas , sometidas a carga estática mediante una formulación integral obtenida a partir de la des composición de la ecuación biarmónica que rige el comportamiento de dichas ...
Ponencia
Análisis numérico de postpandeo de paneles rigidizados de material compuesto
(AEMAC (asociación española de materiales compuestos), 2009)
Los paneles rigidizados están formados por una lámina o piel delgada a la que se unen rigidizadores para aportarle la rigidez necesaria. La presencia de elementos delgados hace que estos componentes sean muy sensibles a ...
Artículo
CNT-polymer nanocomposites under frictional contact conditions
(Elsevier, 2018-12)
The unique intrinsic physical properties of Carbon NanoTubes (CNTs) suggest that they are ideal fillers for high-performance composites. Although some experimental studies have revealed the potential of these nanoparticles ...
Artículo
Exploring the impact of graphene oxide on mechanical and durability properties of mortars incorporating demolition waste: micro and nano-pore structure effects
(Consejo Superior de Investigaciones Científicas, 2023-12)
In this study is explored the use of construction and demolition waste as fine aggregate in mortars. The addition of nano-graphene oxide (0.1%wt) has also been evaluated. Tests were conducted to determine their density, ...
Artículo
Dynamic characterisation of wind turbine towers account for a monopile foundation and different soil conditions
(Taylor & Francis (Routledge), 2017)
The response of wind turbines is induced by dynamic loads such as wind, transient and cyclic loads, and also extreme loads such as earthquakes. Thus, the structural design requires an accurate evaluation of the modal ...
Artículo
Computing stress singularities in transversely isotropic multimaterial corners by means of explicit expressions of the orthonormalized Stroh-eigenvectors
(Elsevier, 2009-01)
Composite materials reinforced by unidirectional long fibers behave macroscopically as homogeneous transversely isotropic linear elastic materials. A general, accurate and computationally efficient procedure for the ...
Artículo
Influence of the size and depth of a circumferential notch on the impact behavior of streetlights. A passive-safety concept
(Elsevier, 2015-07)
Impact tests on weakened streetlights were carried out using a high energy pendulum. The weakening mechanism consists of a circumferential notch at the base of the streetlight. The objective is twofold: firstly to reduce ...
Artículo
Representativity of the singular stress state in the failure of adhesively bonded joints between metals and composites
(Elsevier, 2009-09)
Several critical points, where both geometry and material properties change abruptly, arise in an adhesively bonded lap joint between a metallic and a composite material. These critical points, called multimaterial corners ...
Artículo
Effect of thermal residual stresses on matrix failure under transverse tension at micromechanical level: A numerical and experimental analysis
(Elsevier, 2011)
In the present work the influence at micromechanical scale of thermal residual stresses, originated in the cooling down associated to the curing process of fibrous composites, on inter-fibre failure under transverse tension ...