Search results for "3d analysis"
showing 7 items of 7 documents
Strengthening of steel-reinforced concrete structural elements by externally bonded FRP sheets and evaluation of their load carrying capacity
2014
Abstract The paper proposes a preliminary design tool for reinforced concrete (RC) elements strengthened by fiber-reinforced-polymer (FRP) sheets to be used in civil engineering applications and in particular in medical buildings. The design strategy is based on limit analysis theory and utilizes a numerical procedure which provides a direct method to determine peak load, failure mode and critical zones of the structural elements of interest.
Strengthening of steel-reinforced concrete structural elements by externally bonded FRP sheets and evaluation of their load carrying capacity to face…
2014
The paper has proposed a limit analysis procedure for a preliminary design of RC elements strengthened by externally bonded FRP sheets. The procedure, based on a multi-yield-criteria limit analysis approach, has led to a reliable prediction of peak loads and failure modes of the analyzed elements (slabs) by simultaneously considering the limit state of the constituent materials, so resulting very useful in many applications of engineering interest. The attention has been focused on hospital applications in which increment of service loads or realization of openings can weaken some structural elements that have been strengthened by FRP sheets.
Student Author of the Year Award 2009
2009
The ‘‘Student author of the Year Award’’ is made for an outstanding paper in which an undergraduate or graduate student played a key role in the research and publication. The recipient of this award for 2009 is Ruben Diez Fernandez for his contribution, co-authored with Jose R. Martinez Catalan 3D Analysis of an Ordovician igneous ensemble: A complex magmatic structure hidden in a polydeformed allochthonous Variscan unit Journal of Structural Geology, Volume 31, Issue 3, March 2009, Pages 222–236. The Editors have selected this paper out of many student submissions in 2009. The basis of this paper is detailed field mapping, metamorphic petrology and structural analysis. These clearly establ…
Three-Dimensional Analysis of Component Stability of the Nellix Endovascular Aneurysm Sealing System After Treatment of Infrarenal Abdominal Aortic A…
2016
Purpose: To assess short-term stability and conformational changes of the Nellix EndoVascular Aneurysm Sealing (EVAS) System using 3-dimensional (3D) analysis. Methods: Postoperative computed tomography (CT) scans obtained at 0, 3, and 12 months in 24 patients (mean age 75±7 years; 22 men) who underwent EVAS between December 2013 and December 2014 for intact abdominal aortic aneurysm (within the instructions for use) were evaluated for stent-graft deviation in multiple planes using dedicated 3D analysis software. In addition, 2D analysis using an anatomically fixed reference landmark was performed to assess craniocaudal migration. Clinical and follow-up data of the patients were recorded a…
Micromechanisms of load transfer in a unidirectional carbon fibre–reinforced epoxy composite due to fibre failures. Part 1: Micromechanisms and 3D an…
2006
This study gives a detailed analysis of load distributions around fibre breaks in a composite and the mechanisms involved in load transfer. In contrast to other studies reported in the literature the analysis considers different configurations of composite damage from the failure of a few fibres to the failure of many. The model considers the elastic case with and without debonding at the broken fibre/matrix interface. In this way, the usual limitations of the finite element approach are overcome so as to take into account the numbers and interactions of broken fibres whilst maintaining an evaluation of the various fields involved, in particular the stress fields associated with fibre failu…
Symmetric Galerkin Boundary Element Metod for 3D analysis
1999
The mixed boundary value problem is dealt with by Galerkin approach in 3D linear elasticity via a system of boundary integral equations. This paper presents a method for computing a solving system coefficient made up of double surface integrals with hypersingular kernel. This method employs the Schwartz distribution theory in order to obtain the closed form of the first surface integration which represents the traction. The successive surface integration of the weighed traction having a kernel with logarithmic singularity uses known numerical techniques. This formulation requires C° continuity of shape functions modelling the source represented by the displacement discontinuity.
The conformation of Mesolithic deposits in Cueva de la Cocina (Eastern Iberia): Natural vs. Anthropological agents
2018
Cocina Cave fue excavada por primera vez por Llu s Pericot durante la década de 1940 del siglo XX. Debido a la metodología arqueológica seguida en ese momento, pueden surgir algunos problemas en aras de la precisión necesaria de hoy. Los objetivos principales del equipo de la Universidad de Valencia que trabaja actualmente en el sitio no son solo proporcionar una excavación más detallada dentro del marco estratigráfico reciente, pero también para comprender mejor cómo los procesos humanos y tafonómicos se reflejan en las excavaciones antiguas. Mediante el uso de nuevas metodologías, como la reconstrucción virtual en 3D, hemos podido descubrir cómo se implementan algunos procesos naturales a…