Browsing by Author "Alcalá Cabrelles, Jorge"
Now showing items 1-13 of 13
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Continuum crystal plasticity analyses of the plastic flow features underneath single-crystal indentations
(2011-03)
Article
Restricted access - publisher's policyContinuum 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"
(2010-05)
Article
Open Access -
Evaluación mecánica mediante técnicas de indentación de soldaduras por fricción lineal en aleaciones de titanio
(2005-11)
Article
Open AccessEste 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
(2015-05-01)
Article
Open AccessThis 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
(Edicions UPC, 2002)
Book
Restricted access to the UPC academic communityTodos 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
(2015)
Article
Open AccessThe 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
(2015)
Article
Open AccessWe 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 ... -
Reassessing spherical indentation: Contact regimes and mechanical property extractions
(2010-09-01)
Article
Restricted access - publisher's policy -
Sharp indentation crystal plasticity finite element simulations: Assessment of crystallographic anisotropy effects on the mechanical response of thin fcc single crystalline films
(2014-04-15)
Article
Restricted access - publisher's policyContinuum 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
(Nature, 2020-12-01)
Article
Open AccessPlastic 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
(2015-06-01)
Article
Open AccessPresent 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
(2021-09)
Article
Open AccessNanoindentation 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
(2017-02-15)
Article
Open AccessNanocontact 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 ...
