Browsing by Subject "Resistència de materials -- Models matemàtics"
Now showing items 1-18 of 18
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A robust and efficient 3D constitutive law to describe the response of quasi-brittle materials subjected to reverse cyclic loading: formulation, identification and application to a RC shear wall
(CIMNE, 2015)
Conference lecture
Open AccessIn this paper, a new constitutive law aiming at describing the quasi-brittle behavior when subjected to cyclic loading is presented.The proposed model is formulated with in the frame work of isotròpic contínuum damage ... -
A simple approach for modeling impact force parameters for different materials
(2009-11-01)
Article
Open AccessOn this paper we consider the case of impacts between rigid objects. We are interested on estimating the impact pulse-width and peak force for different materials over a wide range of masses. Some experiments were conducted ... -
An evaluation of a simple dynamical model for impacts between rigid objects
(2009)
Conference report
Open AccessThe main purpose of this work is to propose a dynamical model for simulating the response of different metallic objects when impacted by another rigid body. In addition, a methodology for estimating the model parameters ... -
Analisis no-lineal de estructuras de acero expuestas al fuego
(Universitat Politècnica de Catalunya, 2015-02-24)
Master thesis
Restricted access - author's decisionLa presente Tesis de Máster plantea las bases del problema numérico del cálculo no-lineal de un modelo de barras tridimensional de estructuras de acero expuestas al fuego. La Tesis se articula en dos partes. La primera ... -
Análisis de la influencia de la rigidez y la absorción de energía de los materiales aplicados al diseño de una barrera de choque frontal para la evaluación de la compatibilidad entre vehículos
(Universitat Politècnica de Catalunya, 2009-02)
Master thesis (pre-Bologna period)
Open AccessEl objetivo de este proyecto es evaluar la capacidad de los protocolos de ensayo de choque frontal actuales para asegurar la compatibilidad entre vehículos en caso de impacto mediante una metodología de cálculo simplificada, ... -
Análisis de un componente plástico cromado en automoción mediante ensayos mecánicos y simulación por elementos finitos para la predicción del correcto montaje y desmontaje de la pieza
(Universitat Politècnica de Catalunya, 2014-06)
Bachelor thesis
Restricted access - author's decisionEste proyecto nace con motivo de los problemas que sufrió una pieza de automoción durante el proceso de homologación de la misma y que no permitieron su lanzamiento al mercado. La pieza en cuestión consiste en un tapa-buje. ... -
Análisis del impacto de pájaros en perfiles alares de materiales compuestos con fibra de carbono
(Universitat Politècnica de Catalunya, 2010-10-19)
Minor thesis
Open AccessLos materiales compuestos están siendo utilizados cada vez más en distintos sectores de la industria. Uno de ellos es el aeronáutico, que los utiliza, entre otras aplicaciones, en los álabes de los motores. Durante el ... -
Development of testing procedure for welded steel tubes
(Universitat Politècnica de Catalunya, 2010-06)
Master thesis
Restricted access - author's decisionThe objective of this study is to perform physical tests on T-joint welded tubes to determine the axial static load behavior and compared them with the analytical and numerical calculations. Three experiments are performed ... -
Exponential decay in nonsimple thermoelasticity of type III
(2016-01-15)
Article
Open AccessThis paper deals with the model proposed for nonsimple materials with heat conduction of type III.We analyze rst the general system of equations, determine the behavior of its solutions with respect to the time and show ... -
Modelado del daño en sólidos mediante formulaciones variacionales de discontinuidades interiores
(Universitat Politècnica de Catalunya. CIMNE, 2010)
Article
Open AccessEn este artículo se presentan diferentes formulaciones variacionales para el modelado del daño en sólidos mediante la formulación de discontinuidades interiores. Inicialmente se establece un funcional de energía para un ... -
On (non-)exponential decay in generalized thermoelasticity with two temperatures
(2016-11)
Research report
Open AccessWe study solutions for the one-dimensional problem of the Green-Lindsay and the Lord-Shulman theories with two temperatures. First, existence and uniqueness of weakly regular solutions are obtained. Second, we prove the ... -
On (non-)exponential decay in generalized thermoelasticity with two temperatures
(Elsevier, 2017-08)
Article
Open AccessWe study solutions for the one-dimensional problem of the Green-Lindsay and the Lord-Shulman theories with two temperatures. First, existence and uniqueness of weakly regular solutions are obtained. Second, we prove the ... -
On the spatial behavior in type III thermoelastodynamics
(2014-02)
Article
Restricted access - publisher's policyThis note is concerned with the linear (and linearized) Type III thermoelastodynamic theory proposed by Green and Naghdi. We investigate the spatial behavior of the solutions when we assume the positivity of the elasticity ... -
On the time decay of solutions for non-simple elasticity with voids
(Wiley-VCH, 2016-07-01)
Article
Open AccessIn this work we consider the non-simple theory of elastic material with voids and we investigate how the coupling of these two aspects of the material affects the behavior of the solutions. We analyze only two kind of ... -
Optimització del perfil de rodolament d'un tren de mercaderies
(Universitat Politècnica de Catalunya, 2018-01-18)
Master thesis
Restricted access - confidentiality agreement -
Pushing SEA beyond its limits: a model for real building structures
(2013)
Conference report
Open AccessThe main challenge for models of building acoustics is being able to consider all the geometrical and physical details of real structures with a reasonable computational cost for high frequencies. The SEA (Statistical ... -
Schädigungsparameter für Laserstrahlschweißverbindungen unter zyklischen, mehraxialen Belastungen
(Universitat Politècnica de Catalunya / Technische Universität Darmstadt, 2011)
Master thesis (pre-Bologna period)
Restricted access - author's decisionIn der Automobil- und Luftfahrtbranche werden Laserstrahlschweißverbindungen häufig benutzt. Die Technologie erlaubt eine effektive Verbindung dünnwandiger Leichtbaukonstruktionen. Bei schneller Fertigung ermöglicht sie ... -
Web crippling and local buckling response of stainless steel sections
(Universitat Politècnica de Catalunya, 2015-02-06)
Doctoral thesis
Open AccessThis thesis examines the response of stainless steel members when subjected to transverse and normal forces triggering the instability phenomena called web crippling and local buckling, respectively. Currently, the part ...
