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Optimization study of the structural HACFRA composition (Self Compacting Concrete Steel Fiber Reinforced)
(Instituto de Ciencias de la construccion Eduardo Torroja, 2015-03)
The interest of HACFRA (self compacting concrete reinforced with steel fibers), is the combination of the residual strength increase and cracking decrease compared to plain concrete by the introduction of steel fibers in ...
The patents in the introduction of reinforced concrete in Spain: "Alhondiga de Bilbao" case study
(Instituto de Ciencias de la Construcción Eduardo Torroja, 2014-06)
Reinforced concrete structures are introduced in Spain mainly by French influence. This happens in the late nineteenth century, following the scheme operating through proprietary systems prevailing in Europe. Systems ...
Estrategias mecánicas de las plantas arborescentes: enseñanzas estructurales de los árboles
(Universidad de Tarapacá, 2017-09)
Los árboles son los seres vivos más grandes que jamás han poblado la Tierra, pudiendo tener más de cien metros de altura, masas de varios miles de toneladas y alcanzar edades de varios miles de años. Para conseguirlo, entre ...
Machining Stresses and Initial Geometry on Bulk Residual Stresses Characterization by On-Machine Layer Removal
(MDPI, 2020-03-22)
Prediction and control of machining distortion is a primary concern when manufacturing monolithic components due to the high scrap and rework costs involved. Bulk residual stresses, which vary from blank to blank, are a ...
Estudio de las proteínas desde una perspectiva biocinemática: estado del arte
(Publicaciones DYNA, 2019-09-01)
Las proteínas son las macromoléculas encargadas de llevar a cabo la gran mayoría de las funciones vitales que los seres vivos requieren para su existencia. Estas macromoléculas, las cuales se asemejan a pequeños mecanismos ...
Plastic Analysis and Testing of multidirectional SFRC flag slabs
(Instituto de Ciencias de la Construcción Eduardo Torroja, 2014-09)
This paper presents a theoretical and experimental study of multidirectional steel fibers reinforced concrete slabs (SFRC). The study is based on a real building application using SFRC flag slabs. For the evaluation of the ...
Friction torque in four contact point slewing bearings: Effect of manufacturing errors and ring stiffness
(Elsevier, 2017-02-24)
This work outlines a procedure for the determination of the interferences between balls and raceways in four contact
point slewing bearings due to manufacturing errors. The procedure is applied to a particular case and ...
An Improved Meshing Method for Shape Optimization of Aerodynamic Profiles Using Genetic Algorithms
(WILEY, 2008)
One of the basic problems in fluid dynamics shape optimization is mesh generation. When analysis is performed using the finite element method, meshes of sufficient quality need to be constructed automatically. This work ...
Direct integration of the equations of multibody dynamics using central differences and linearization
(Elsevier, 2018-12-12)
A methodology for integrating rigid body dynamics for the analysis of multibody systems is presented. The novelty lies in the fact that the equation system is solved directly by means of central differences as a second-order ...
Comportamiento a Fractura Interlaminar en Materiales Composites de Matriz Epoxi Modificada
(Focitec, 1998-10-01)
En el artículo se estudian diversos métodos para caracterizar el comportamiento interlaminar para materiales composites. Se presenta el "Cizalladura en Viga Corta" (CVC) junto con otros dos métodos basados en la Mecánica ...