Exploració per autor "Alcalá Cabrelles, Jorge"
Ara es mostren els items 1-15 de 15
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Continuum crystal plasticity analyses of the plastic flow features underneath single-crystal indentations
Alcalá Cabrelles, Jorge; Esque de los Ojos, Daniel; Ocenášek, J. (2011-03)
Article
Accés restringit per política de l'editorialContinuum crystal plasticity finite element simulations are performed for archetypal pure and alloyed fcc crystals to investigate the role of the crystalline orientation, hardening response and dislocation interactions on ... -
Corrigendum to "Micromechanics of pyramidal indentation in fcc metals: Single crystal plasticity finite element analysis"
Alcalá Cabrelles, Jorge; Casals, O.; Ocenášek, J. (2010-05)
Article
Accés obert -
Dynamics of lattice disorder in perovskite materials, polarization nanoclusters and ferroelectric domain wall structures
Ocenásek, Jan; Minár, Ján; Alcalá Cabrelles, Jorge (Springer Nature, 2023-12-01)
Article
Accés obertThe nexus between classic ferroelectricity and the structure of perovskite materials hinges on the concept of lattice disorder. Although the ordered perovskites display short-range displacements of the central cations ... -
Evaluación mecánica mediante técnicas de indentación de soldaduras por fricción lineal en aleaciones de titanio
Corzo Rueda, M. Clemencia; Casals, O.; Alcalá Cabrelles, Jorge; Mateo García, Antonio Manuel; Anglada Gomila, Marcos Juan (2005-11)
Article
Accés obertEste artículo presenta los resultados de un proyecto cuyo objetivo es evaluar la integridad estructural de soldaduras por fricción lineal entre diferentes aleaciones de titanio de aplicación aeronáutica. Concretamente se ... -
Extracting uniaxial responses of single crystals from sharp and spherical hardness measurements
Alcalá Cabrelles, Jorge; Esque de los Ojos, Daniel; Ocenásek, Jan (2015-05-01)
Article
Accés obertThis investigation provides a mechanistic background to mechanical property extractions performed from single-crystal microhardness measurements. The analysis concerns both spherical and sharp (pyramidal) indentations. We ... -
Fractura de materiales
Alcalá Cabrelles, Jorge; Llanes Pitarch, Luis Miguel; Mateo García, Antonio Manuel; Salán Ballesteros, Maria Núria (Edicions UPC, 2002)
Llibre
Accés restringit a la comunitat UPCTodos los componentes de aplicación en ingeniería están sometidos, en mayor o menor grado, a procesos de fatiga y fractura. La fractura de los materiales es un fenómeno que comenzó a cobrar importancia a partir de la ... -
Incipient Plasticity of Single-Crystal Tantalum as a Function of Temperature and Orientation
Franke, O.; Alcalá Cabrelles, Jorge; Dalmau, Ramon; Duan, Zhi Chao; Biener, A.; Biener, M. M.; Hodge, A. M. (2015)
Article
Accés obertThe nanocontact plastic behaviour of single-crystalline Ta (1¿0¿0), Ta (1¿1¿0) and Ta (1¿1¿1) was studied as a function of temperature and indentation rate. Tantalum, a representative body centred cubic (BCC) metal, reveals ... -
Nanomechanics of flexoelectric switching
Alcalá Cabrelles, Jorge (2015)
Article
Accés obertWe examine the phenomenon of flexoelectric switching of polarization in ultrathin films of barium titanate induced by a tip of an atomic force microscope (AFM). The spatial distribution of the tip-induced flexoelectricity ... -
Real-time microscopy of the relaxation of a glass
Ruiz Ruiz, Marta; Vila Costa, Anna; Bar, Tapas; Rodríguez Tinoco, Cristian; Gonzalez Silveira, Marta; Plaza, Jose Antonio; Alcalá Cabrelles, Jorge; Fraxedas Calduch, Jordi; Rodríguez Viejo, Javier (Springer Nature, 2023-01-01)
Article
Accés obertThe understanding of the dynamics of a glass above its devitrification temperature remains incomplete. Here, we build a spatio-temporal map of the relaxation dynamics of a highly stable glass into its supercooled liquid ... -
Reassessing spherical indentation: Contact regimes and mechanical property extractions
Alcalá Cabrelles, Jorge; Esque de los Ojos, Daniel (2010-09-01)
Article
Accés restringit per política de l'editorial -
Sharp indentation crystal plasticity finite element simulations: Assessment of crystallographic anisotropy effects on the mechanical response of thin fcc single crystalline films
Esque de los Ojos, Daniel; Ocenášek, J.; Alcalá Cabrelles, Jorge (2014-04-15)
Article
Accés restringit per política de l'editorialContinuum crystal plasticity finite element modeling has been used to address size-effects during indentation of thin-metallic films. Berkovich indentation simulations were performed in the frame of continuum crystal ... -
Statistics of dislocation avalanches in FCC and BCC metals: dislocation mechanisms and mean swept distances across microsample sizes and temperatures
Alcalá Cabrelles, Jorge; Ocenásek, Jan; Varillas Delgado, Javier; El-Awady, Jaafar A.; Wheeler, Jeffrey; Michler, Johann (Nature, 2020-12-01)
Article
Accés obertPlastic deformation in crystalline materials consists of an ensemble of collective dislocation glide processes, which lead to strain burst emissions in micro-scale samples. To unravel the combined role of crystalline ... -
Strain hardening and dislocation avalanches in micrometer-sized dimensions
Alcalá Cabrelles, Jorge; Ocenásek, Jan; Nowag, Kai; Esque de los Ojos, Daniel; Ghisleni, Rudy; Michler, Johann (2015-06-01)
Article
Accés obertPresent experiments and computational simulations furnish a fundamental background to the understanding of plastic flow across sample sizes. It is shown that self-organized criticality (SOC) governs the size distribution ... -
Understanding imprint formation, plastic instabilities and hardness evolutions in FCC, BCC and HCP metal surfaces
Varillas Delgado, Javier; Ocenásek, Jan; Torner Ribé, Jordi; Alcalá Cabrelles, Jorge (2021-09)
Article
Accés obertNanoindentation experiments in metal surfaces are characterized by the onset of plastic instabilities along with the development of permanent nanoimprints and dense defect networks. This investigation concerns massive ... -
Unraveling deformation mechanisms around FCC and BCC nanocontacts through slip trace and pileup topography analyses
Varillas Delgado, Javier; Ocenásek, Jan; Torner Ribé, Jordi; Alcalá Cabrelles, Jorge (2017-02-15)
Article
Accés obertNanocontact loadings offer the potential to investigate crystal plasticity from surface slip trace emissions and distinct pileup patterns where individual atomic terraces arrange into hillocks and symmetric rosettes. Our ...