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Listar por palabra clave "Creep"

Mostrando ítems 1-20 de 25

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A Test Method to Characterize Flexural Creep Behaviour of Pre-cracked FRC Specimens

Arango Campo, Samuel Eduardo; Serna Ros, Pedro; Martí Vargas, José Rocío; García Taengua, Emilio José (Society for Experimental Mechanics, 2011)

[EN] This paper presents a proposal of test setup and methodology for testing the flexural creep behaviour of pre-cracked Fibre Reinforced Concrete (FRC) specimens, aimed at providing a basis for standardization. The design ...
Análisis de defectología en componentes de fan, compresor y turbina del motor SNECMA CFM56

Ondoño Tovar, Antonio (Universitat Politècnica de València, 2022-09-05)

[ES] Uno de los principales problemas en la aviación es la garantía de seguridad, la cual va ligada al mantenimiento. Son múltiples las maneras en que una aeronave es capaz de fallar, ya sea de forma leve o crítica. En el ...
Bond model of 15.2 mm strand with consideration of concrete creep and shrinkage

Kareem, R.S.; Al-Mohammedi, A.; Dang, C.N.; Martí Vargas, José Rocío; Hale, W.M. (Thomas Telford Ltd., 2020-08)

[EN] The bond between prestressing strands and concrete in the transfer zone of pretensioned concrete members is a complicated mechanism. Concrete creep and shrinkage are dominant time-dependent factors that affect the ...
Creep behaviour of closed cell aluminium foams from stress relaxation tests

Cárcel González, Bernabé; Cárcel González, Alfonso Cristóbal; Arrue-Burillo, Paloma (TRANS TECH PUBLICATION, 2010)

[EN] Creep behaviour of closed cell aluminium foams and transitions from power law to power law breakdown (PLB) creep regimes are investigated from results of stress relaxation tests (SRT) carried out on Alporas foams with ...
Database of the Round-Robin Test on Creep Behaviour in Cracked Sections of Fibre Reinforced Concrete organised by the RILEM Technical Committee 261-CCF

Llano Torre, Aitor; Serna Ros, Pedro; Cavalaro, Sergio; Kusterle, Wolfgang; Moro, Sandro; Zerbino, Raúl L.; Gettu, Ravindra; Pauwels, Hans; Nishiwaki, Tomoya; Parmentier, Benoît; Buratti, Nicola; Toledo Filho, Romildo D.; Charron, Jean-Philippe; Larive, Catherine; Boshoff, William P.; Bernard, E. Stefan; Kompatscher, Michael (Universitat Politècnica de València, 2021-03-05)

[EN] The RILEM Technical Committee 261-CCF launched in 2015 an international Round-Robin Test (RRT) program to improve the knowledge on the long-term behaviour of cracked Fibre Reinforced Concrete (FRC) sections and assess ...
Diseño y desarrollo de un banco de ensayos de fluencia para materiales poliméricos.

Rodríguez Cruz, Iván (Universitat Politècnica de València, 2023-11-17)

[ES] El presente proyecto tiene como objetivo el diseño y desarrollo de un banco de ensayos de fluencia capaz de realizar los diferentes ensayos del tipo: relajación, fluencia temporal o creep y ensayo mecánico dinámico. ...
Effect of microstructure on electrical and mechanical properties of La5.4WO12-delta proton conductor

Deibert, Wendelin; Stournari, Vasiliki; Ivanova, Mariya E.; Escolástico Rozalén, Sonia; Serra Alfaro, José Manuel; Malzbender, Juergen; Beck, Tilman; Singheiser, Lorenz; Guillon, Olivier; Meulenberg, Wilhelm A. (Elsevier, 2018-08)

[EN] The relationships between microstructural characteristics and electrical as well as mechanical properties of La5.4WO12-delta (LWO54) materials were studied. Polycrystalline LWO54 samples revealed identical transport ...
El comportamiento a largo plazo de torres y estructuras de fábrica. El Campanario de la Catedral de Monza

Binda, Luigia; Saisi, Antonella; Tiraboschi, Claudia (Universitat Politècnica de València, 2018-01-10)

[EN] After the collapse of some heavy buildings and towers in Italy and elsewhere, the hypothesis of possible continuous damage to these structures due to the dead and cyclic loads (wind, temperature variations, etc.) has ...
El proyecto y la intervención en el campanario de la catedral de Monza, Italia

Modena, Claudio; Valluzzi, Maria Rosa (Universitat Politècnica de València, 2010-12-29)

[EN] After painstaking investigations carried out since 1994, the bell tower of the San Giovanni Battista Cathedral in Monza (Milan) has recently been subject to conservation interventions. Severe deterioration phenomena ...
Estudio de la microestructura y las propiedades mecánicas de nuevos aceros diseñados para aplicaciones en centrales térmicas de alta eficiencia y baja emisión de CO2

Benavente Martínez, Esther (Universitat Politècnica de València, 2014-09-03)

[ES] La mejora de la eficiencia de las centrales térmicas mediante el aumento de la temperatura y la presión de trabajo permite reducir el consumo de combustibles fósiles y las emisiones de CO2 , pero requiere el ...
Estudio de la microestructura y propiedades mecánicas de nuevos aceros ferrítico-martensíticos con 14% Cr de elevada resistencia a fluencia

Benavente Martínez, Esther (Universitat Politècnica de València, 2013-02-25)

[ES] Obtención de aceros ferrítico-martensíticos de composición y tratamiento térmico adecuado que permitan la precipitación de partículas de refuerzo capaces de mantener estable la microestructura en condiciones de ...
Estudio del impacto del reciclaje en las propiedades mecánicas, térmicas y reológicas del polímero HDPE

Alamar Tarazona, Carlos (Universitat Politècnica de València, 2021-01-27)

[ES] El TFG, asistido por la profesora Lidija Slemenik Per e, actual encargada del departamento de Ciencia de Materiales de la facultad de Mechanical Engineering de la Universidad de Eslovenia, trata sobre el estudio de ...
Flexural and compressive creep behavior of UHPFRC specimens

Llano-Torre, Aitor; Martí Vargas, José Rocío; Serna Ros, Pedro (Elsevier, 2020-05-30)

[EN] The long term behavior of Ultra High Performance Fiber Reinforced Concrete (UHPFRC) is analyzed in this study. The experimental campaign covered creep in compression and creep in flexure in cracked state. Three types ...
Flexural creep of steel fiber reinforced concrete in the cracked state

García Taengua, Emilio José; Arango Campo, Samuel Eduardo; Martí Vargas, José Rocío; Serna Ros, Pedro (Elsevier, 2014-08)

This paper aims at assessing the effect of a number of variables on flexural creep of steel fiber reinforced concrete in its cracked state, namely: fiber geometry (slenderness and length), fiber content, concrete compressive ...
Fluencia en estado fisurado de Hormigones Reforzados de Fibras (HRF). Aplicación a Hormigones de Muy Alto Rendimiento (HMAR) y Hormigones Reforzados con Fibras de Vidrio (GFRC)

Llano Torre, Aitor (Universitat Politècnica de València, 2015-06-05)

[EN] In the present Master Thesis an experimental program has been developed to study the behavior of different Fiber Reinforced Concretes in pre-cracked specimens with a flexure load sustained over time. On one side ...
Improvements in test methodology and characterisation of long-term flexure behaviour of fibre-reinforced concrete

Llano Torre, Aitor (Universitat Politècnica de València, 2023-02-27)

[ES] El procedimiento de ensayo de fluencia es un proceso muy complicado, largo y que envuelve muchas variables. Por una parte, están las variables relativas al proceso de ensayo de fluencia como condiciones de contorno, ...
Long term deformations by creep and shrinkage in recycled aggregate concrete

Domingo Cabo, Alberto; Lazaro, Carlos; López Gayarre, Fernando; Serrano, M. A.; López Codina, C. (Springer Verlag (Germany), 2009-12)

The main aim of this work was to determine creep and shrinkage variations experienced in recycled concrete, made by replacing the main fraction of the natural aggregate with a recycled aggregate coming from waste ...
Long-term behavior of cracked fiber reinforced concrete under service conditions

Monetti, D.H.; Llano-Torre, Aitor; Torrijos, M.C.; Giaccio, G.; Zerbino, Raúl; Martí Vargas, José Rocío; Serna Ros, Pedro (Elsevier, 2019-01-30)

[EN] This paper presents an experimental study on creep behavior of cracked Fiber Reinforced Concrete (FRC). To this end, a conventional strength concrete incorporating hooked-end steel fibers was used. In order to represent ...
Non-linear analysis of rheological effects in slender composite columns

Fenollosa Forner, Ernesto Jesús; Cabrera Fausto, Ivan; Almerich Chulia, Ana Isabel (Trans Tech Publications, 2014-07-04)

[EN] A thorough analysis of slender columns under axial force and bending moment requires second order effects assessment. Concrete s creep is one of the factors that increase lateral displacements of the bar in the long ...
Prestress losses evaluation in prestressed concrete prismatic specimens

Caro Forero, Libardo Andrés; Martí Vargas, José Rocío; Serna Ros, Pedro (Elsevier, 2013-04)

This paper presents an experimental research work to evaluate prestress losses in pretensioned prestressed concrete. An experimental program including variables such as concrete mix design, specimen cross-section size and ...