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Mostrando ítems 61-70 de 350
Ponencia
A New Algorithm for the Evaluation of the Elastic Forces in the Absolute Nodal Coordinate Formulation
(Eccomas Proceedia, 2004)
The use of the Absolute Nodal Coordinate Formulation (ANCF) to model flexible multibody systems leads to a system of equations in which the mass matrix is constant. Among other advantages of the ANCF, as the simplicity ...
Artículo
On the Determination of Forming Limits in Polycarbonate Sheets
(MDPI, 2020-02)
By proposing an adaptation of the methodology usually used in metal forming, this paper aims to provide a general procedure for determining the forming limits, by necking and fracture, of polymeric sheet. The experimental ...
Artículo
Estimation of Lateral Track Irregularity through Kalman Filtering Techniques
(2021)
The aim of this work is to develop a model-based methodology for monitoring lateral track irregularities based on the use of inertial sensors mounted on an in-service train. To this end, a gyroscope is used to measure the ...
Tesis Doctoral
Mecanismos con elementos de longitud variable: síntesis óptica de generación de trayectorias
(1982-01-01)
Esta tesis presenta la utilización de las técnicas de programación matemática (no lineal) o técnicas de optimización, en la síntesis de mecanismos capaces de generar una trayectoria, lo más aproximada posible en todos sus ...
Artículo
Plastic flow equations for the local strain approach in the multiaxial case
(Gruppo Italiano Frattura (IGF), 2016)
This paper presents a system of plastic flow equations which uses and generalizes to the multiaxial case a number of concepts commonly employed in the so-called Local Strain Approach to low cycle fatigue. Everything is ...
Tesis Doctoral
Cirugía reconstructiva de la aorta infrarrenal mediante abordaje laparoscópido: Estudio experimental
(2004)
Desde sus inicios, la difusión de la cirugía aórtica mediante abordaje laparoscópico se ha visto muy limitada debida a la dificultad que presenta la realización de las anastomosis mediante técnicas de sutura laparoscópica ...
Ponencia
Numerical study on the thickness homogenization in hole-flanging by single-point incremental forming
(Institute of Physics Publishing, 2018-08)
Incremental sheet forming is a novel technology that has significant benefits compared to conventional forming. However, it is a time-consuming process that is usually carried out in several forming stages to homogenize ...
Artículo
Initiation and growth behavior of very-long microstructurally short fatigue cracks
(Gruppo Italiano Frattura, 2013)
The present paper describes a novel experimental technique recently presented that allows one to study interactions between the crack and microstructural barriers with an unprecedented level of ease and detail. The method ...
Artículo
Is cannulated-screw fixation an alternative to plate osteosynthesis in open book fractures? A biomechanical analysis
(Elsevier, 2016)
Objectives: The current biomechanical work compares the symphyseal and sacroiliac stability obtained with two systems of bone osteosynthesis. The two methods of fixation compared were the 6-hole suprapubic non-locked plate ...
Artículo
Condiciones de sujeción en el ensayo a fatiga de implantes dentales
(Grupo español de fractura, 2015)
En este artículo se estudia el sistema de fijación de implantes dentales empleado en los ensayos de fatiga realizados para su cualificación. Según la norma UNE-EN ISO 14801 se permiten varias ...