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Mostrando ítems 21-30 de 604
Artículo
The effect of frequency on tension-tension fatigue behavior of unidirectional and woven fabric graphite-epoxy composites
(Taylor & Francis, 2019-09)
In this paper, the effect of different values of load frequency on the evolution of the stress versus number of cycles to failure curve for a graphite-epoxy composite is studied. Two types of materials have been considered: ...
Ponencia
Piezoelectric lead-free nanocomposites for sensing applications: the role of CNT reinforced matrices
(Editorial Club Universitario, 2019)
Piezoelectric materials are employed in a wide range of sensing devices. At present, the vast majority of piezoelectric materials used for industrial applications are ceramic and exhibit a high lead content in their ...
Artículo
Locking treatment of penalty-based gradient-enhanced damage formulation for failure of compressible and nearly incompressible hyperelastic materials
(Institute of Electrical and Electronics Engineers, 2023-03)
Soft materials are of major interest for biomechanics applications due to their high deformability and susceptibility to experience damage events under different loading scenarios. The present study is concerned with ...
Ponencia
A 2.5D spectral approach to represent acoustic and elastic waveguides interaction on thin slab structures
(Elsevier, 2017)
In this paper, we propose a spectral element method (SEM) to study guided waves in coupled problems involving thin-walled structures and fluid-acoustic cavities. The numerical method is based on the subdomain decomposition ...
Ponencia
Residual Tensile Strength of Multi-Impacted Woven Glass Fibre-Reinforced Polymer Composites
(INEGI / FEUP (Faculty of Engineering of University of Porto), 2023-07)
The effect of multiple low-velocity impacts on the tensile strength of E-glass/epoxy woven fabric composite laminates was studied. For this purpose, specimens with a lay-up sequence of [0,90]10 were considered, which were ...
Ponencia
Análisis del ensayo Iosipescu para la determinación del G12 con el método de los elementos de contorno
(AEMAC (asociación española de materiales compuestos), 1995)
En este trabajo se realiza un análisis del ensayo losipescu sobre materiales compuestos desde el punto de vista del contacto mecánico que se produce entre las mordazas y la probeta. Para ello se ha aplicado un algoritmo ...
Artículo
Fiber Bragg grating application to study an unmanned aerial system composite wing
(SAGE Publications, 2019-05)
Structural health monitoring consists of structural integrity assessment by means of data acquisition and analysis from on-board sensors. Fiber Bragg grating–based monitoring is increasingly attracting the scientific ...
Artículo
Análisis límite de cordones de soldaduras en ángulo
(Asociación Española de Ingeniería Mecánica, 1990-12)
La filosofía del análisis límite se aplica en este trabajo al cálculo de uniones soldadas, calculándose el máximo valor de las cargas externas para el cual existe una distribución de tensiones en equilibrio y que no viola ...
Artículo
Efecto de la fricción sobre la solución elástica de una grieta circular en la interfase entre dos semiespacios
(Grupo Español de Fractura, 2008)
Se estudia la solución elástica en el entorno de una grieta circular en la interfase entre dos materiales sometida a una carga de tracción. Siguiendo el enfoque de Comninou, se supone la existencia de una zona de contacto ...
Artículo
A 2.5D time-frequency domain model for railway induced soil-building vibration due to railway defects
(Elsevier, 2019-05)
A new hybrid time-frequency modelling methodology is proposed to simulate the generation of railway vibration caused by singular defects (e.g. joints, switches, crossings), and its propagation through the track, soil and ...