Exploració per altres contribucions "Universitat Politècnica de Catalunya. PROCOMAME - Processos de Conformació de Materials Metàl·lics"

Ara es mostren els items 1-20 de 341

    • 3D printing, complement to approach in complex lesions 

      Torres Cuevas, Boris Luis; Castillo Lara, Gloria; Travieso Rodríguez, José Antonio; Buchaca, Emilio Fidel; Llumà Fuentes, Jordi; Adrover Monserrat, Bàrbara (2022-03-01)
      Article
      Accés obert
      The use of 3D printing is a technology in increasing expansion in the area of the medical sciences. We describe it the technical characteristics of 3D printing and a protocol of obtaining of models three dimensional as a ...

    • A dislocation assisted self-consistent constitutive model for the high-temperature deformation of particulate metal matrix composite 

      Cabrera Marrero, José M.; Rezayat, Mohammad; Parsa, Mohammad Habibi; Mirzadeh, Hamed (Taylor & Francis, 2021-01)
      Article
      Accés restringit per política de l'editorial
      A dislocation assisted self-consistent model based on Tandon and Weng approach and Bergstrom dynamic recovery model for particulate-reinforced composites has been extended to consider the matrix evolution during high-temperature ...

    • A new technique for curved rod bending tests based on digital image correlation 

      García Vilana, Silvia; Sánchez Molina, David; Llumà Fuentes, Jordi; Velázquez Ameijide, Juan; Arregui Dalmases, Carlos (2021-11-19)
      Article
      Accés obert
      Background. The study of the deformation of curved rods subjected to bending and its associated stress state is a complex task that has not been treated in depth in the literature, which makes difficult to obtain constitutive ...

    • A predictive model for fracture in human ribs based on in-vitro acoustic emission data 

      García Vilana, Silvia; Sánchez Molina, David; Llumà Fuentes, Jordi; Fernández Osete, Ismael; Velázquez Ameijide, Juan; Martínez González, Eva (2021-09-01)
      Article
      Accés obert
      Purpose The aim of this paper is to propose a fracture model for human ribs based on acoustic emission (AE) data. The accumulation of microcracking until a macroscopic crack is produced can be monitored by AE. The ...

    • A simple constitutive model for predicting flow stress of medium carbon microalloyed steel during hot deformation 

      Akbari, Zohreh; Mirzadeh, H.; Cabrera Marrero, José M. (2015-07-15)
      Article
      Accés obert
      The constitutive behavior of a medium carbon microalloyed steel during hot working over a wide range of temperatures and strain rates was studied using the Johnson-Cook (JC) model, the Hollomon equation, and their ...

    • A simple physically-based Zerilli-Armstrong constitutive equation for modeling and prediction of hot deformation flow curves 

      Mirzaie, Tina; Mirzadeh, Hamed; Cabrera Marrero, José M. (2016-03)
      Article
      Accés obert
      Generally, the dislocation-mechanics-based constitutive relations are applicable at high strain rates and relatively low temperatures. However, for expressing flow stress at elevated temperatures, it is required to account ...

    • A stochastic model for soft tissue failure using acoustic emission data 

      Sánchez Molina, David; Martínez González, Eva; Velázquez Ameijide, Juan; Llumà Fuentes, Jordi; Rebollo Soria, María Carmen; Arregui Dalmases, Carlos (2015-07-15)
      Article
      Accés obert
      The strength of soft tissues is due mainly to collagen fibers. In most collagenous tissues, the arrangement of the fibers is random, but has preferred directions. The random arrangement makes it difficult to make deterministic ...

    • Accumulative roll bonding of aluminum/stainless steel sheets 

      Nejad Fard, Navid Mohammad; Mirzadeh, Hamed; Rezayat, Mohammad; Cabrera Marrero, José M. (2017-06)
      Article
      Accés obert
      An Al/Stainless Steel/Al lamellar composite was produced by roll bonding of the starting sheets at 400 °C. Afterward, the roll bonded sheet was cut in half and the accumulative roll bonding (ARB) process at room temperature ...

    • Activation process of air stable nanoscale zero-valent iron particles 

      Ribas Fargas, David; Cernik, M.; Benito Páramo, José Antonio; Filip, J.; Martí Gregorio, Vicenç (2017-07-15)
      Article
      Accés obert
      Nanoscale Zero Valent Iron (nZVI) represents a promising material for subsurface water remediation technology. However, dry, bare nZVI particles are highly reactive, being pyrophoric when they are in contact with air. The ...

    • Alternative methods to attach components in printed circuit boards to improve their recyclability 

      Canal Marques, André; Cabrera Marrero, José M.; Malfatti, Célia de Fraga; Ortega Vega, Maria Rita (2014-08)
      Article
      Accés obert
      Printed circuit boards (PCB), which form the basis of the elect ronics industry, generate wastes that are difficult to dispose of and recycle due to the diversity of their materials and components and thei r difficult ...

    • An investigation of the thermal stability of a Mg-Dy alloy after processing by high-pressure torsion 

      Hanna, Abdelkader; Azzeddine, Hiba; Cabrera Marrero, José M. (2019-05)
      Article
      Accés obert
      An Mg-0.41Dy (wt%) alloy was successfully processed by high-pressure tension (HPT) through 5 turns at room temperature. The evolution of the recrystallization microstructure and the texture and mechanical properties of the ...

    • Analysis of copper effect on microstructures and mechanical properties in microalloyed steels 

      Elwazri, A. M.; Fatehi, A.; Calvo Muñoz, Jessica; Bai, D.; Yue, S. (2008)
      Article
      Accés restringit per política de l'editorial
      The microstructure and mechanical properties under cool deformation conditions was investigated for three steels of approximately 0.03% carbon with different alloying additions of niobium and copper. Compression testing ...

    • Analysis of fracture resistance of tool steels by means of acoustic emission 

      Martínez González, Eva; Picas Anfruns, Ingrid; Casellas Padró, Daniel; Romeu Garbí, Jordi (2010-12-10)
      Article
      Accés restringit per política de l'editorial
      The automotive manufacturers currently use advanced high-strength steels (AHSS) to produce lightweight vehicles with increased safety performance. While showing excellent strengthto-weight ratios, AHSS have several limitations ...

    • Analysis of fracture resistance of tool steels by means of acoustic emission. 

      Martínez González, Eva; Picas Anfruns, Ingrid; Casellas Padró, Daniel; Romeu Garbí, Jordi (2010)
      Text en actes de congrés
      Accés obert
      The usage of advanced high strength steels (AHSS) in structural automotive components has been broadened in the past few years to satisfy the strict specifications of the automotive industry. Besides showing excellent ...

    • Analysis of microstructure and strengthening in CuMg alloys deformed by equal channel angular pressing 

      Rodriguez-Calvillo, P.; Cabrera Marrero, José M. (2015-03)
      Article
      Accés obert
      The microstructural and strengthening behavior of two CuMg alloys, with 0.2 and 0.5 m.-% of Mg, were analyzed after severe plastic deformation by Equal Channel Angular Pressing (ECAP). Both alloys were passed through a 90° ...

    • Analysis of strain-induced precipitates by delta-processing in Inconel 718 superalloy 

      Páramo-Kañetas, Pedro; Ozturk, Utkudeniz; Calvo Muñoz, Jessica; Guerrero Mata, Martha P.; Cabrera Marrero, José M. (2021-03-10)
      Article
      Accés obert
      Delta-Processing (DP) is a suitable heat treatment process aiming at controlling grain growth during hot deformation of the well-known Ni-base superalloy Inconel 718 (IN718). DP is often applied by heating up to 900 °C for ...

    • Analysis of the decrease of the apparent young's modulus of advanced high strength steels and its effect in bending simulations 

      Cobo Molina, Raúl; Pla, M.; Hernández Rossi, Ricardo; Benito Páramo, José Antonio (2009)
      Comunicació de congrés
      Accés obert
      In this paper the evolution of the Young’s Modulus (E) during unloading with plastic deformation has been studied for different Dual-Phase AHSS from DP780 to DP1400. During unloading, all the DP steels studied showed the ...

    • Analysis of the micro and substructural evolution during severe plastic deformation of ARMCO iron and consequences in mechanical properties 

      Muñoz Bolaños, J.A.; Higuera Cobos, Oscar Fabián; Benito Páramo, José Antonio; Bradai, Djamel; Khelfa, T.; Cabrera Marrero, José M. (2019-01-07)
      Article
      Accés restringit per política de l'editorial
      ARMCO iron processed by ECAP up to a maximum equivalent strain of sixteen ECAP passes following route Bc was investigated by Electron Back Scattering Diffraction (EBSD), Transmission Electron Microscopy (TEM), TEM-EBSD and ...

    • Análisis, diseño y construcción de un chasis autoportante de material composite 

      Velázquez Ameijide, Juan; Llumà Fuentes, Jordi; Sánchez, C; Martínez González, Eva; Ruiz, Carlos (12CUIETT 2004, 2004)
      Comunicació de congrés
      Accés obert
      Esta ponencia presenta el análisis estructural de un chasis autoportante para un vehículo monoplaza de bajo consumo, realizada en materiales compuestos. Este estudio comprende el análisis de los modos propios de vibración ...

    • Aplicació de la impressió 3D a la fabricació de pròtesis de baix cost, per persones de baixos recursos 

      Travieso Rodríguez, José Antonio; Jerez Mesa, Ramón; Llumà Fuentes, Jordi; Gómez Gras, Giovanni (2021)
      Comunicació de congrés
      Accés obert
      En aquest article es relaten els resultats d’una experiència desenvolupada a la EEBE de la UPC, per un grup d’estudiants i professors on es va construir un model de pròtesi biònica de braç de baix cost, impresa en 3D. Les ...