Now showing items 1-12 of 40

    • Fracture mechanics based modelling of failure in advanced high strength steels 

      Jonsén, Par; Frómeta Gutiérrez, David; Casellas Padró, Daniel (2017)
      Conference report
      Open Access
      In the last decade, the favorable properties of the press hardening process for advanced high strength steel (AHSS) have increased the demands concerning passenger safety and lightweight design. AHSS show excellent mechanical ...
    • Determination of the essential work of fracture at high strain rates 

      Frómeta Gutiérrez, David; Casellas Padró, Daniel; Jonsén, Par (2017)
      Conference report
      Open Access
      During the last decades, the use of ultra-high strength steel (UHSS) has increased as its favorable ratio between strength and mass allows the design of lighter body-in-white while maintaining passenger safety. Modeling ...
    • A fracture mechanics approach to develop high crash resistant microstructures by press hardening 

      Casellas Padró, Daniel; Frómeta Gutiérrez, David; Lara, Antoni; Molas Busquets, Sílvia; Jonsén, Par (2017)
      Master thesis / UPC Master thesis / Postgraduate master thesis / Doctoral thesis project / Doctoral thesis proposal
      Open Access
      Crashworthiness is a relevant engineering property for car parts. However it is not easy to measure at laboratory scale and complex impact tests have to be carried out to determine it. Crash re-sistance for high strength ...
    • Novel mechanical characterization of austenite and ferrite phases within duplex stainless steel 

      Besharatloo, H.; Carpio Garza, Marcel Francisco; Cabrera Marrero, José M.; Mateo García, Antonio Manuel; Fargas Ribas, Gemma; Wheeler, Jeffrey; Roa Rovira, Joan Josep; Llanes Pitarch, Luis Miguel (Multidisciplinary Digital Publishing Institute (MDPI), 2020-10)
      Article
      Open Access
    • Design of alternative binders for hard materials 

      Nicolás, M. de; Besharatloo, Hossein; Alvaredo Olmos, Paula; Roa Rovira, Joan Josep; Llanes Pitarch, Luis Miguel; Gordo Odériz, Elena (2020-02-01)
      Article
      Restricted access - publisher's policy
      In the last years, a special interest has emerged towards the total or partial substitution of traditional cemented carbides composing elements. In this study, a systematic methodology is presented and used to design ...
    • Influence of the processing route on the properties of Ti(C,N)-Fe15Ni cermets 

      Nicolás Morillas, Maria de; Besharatloo, Hossein; Wheeler, J.M.; Dios Pérez, Miguel de; Alvaredo Olmos, Paula; Roa Rovira, Joan Josep; Ferrari, B; Llanes Pitarch, Luis Miguel; Gordo Odériz, Elena (2020-02-01)
      Article
      Restricted access - publisher's policy
      This study aims to understand the influence of powder preparation and processing steps on the microstructure and properties of Ti(C,N)-Fe15Ni cermets with 70 and 80 vol% of ceramic phase. Two routes were used for powder ...
    • Influence of grinding/polishing on the mechanical, phase stability and cell adhesion properties of yttria-stabilized zirconia 

      Minguela Díaz, Joaquim; Ginebra Molins, Maria Pau; Llanes Pitarch, Luis Miguel; Mas Moruno, Carlos; Roa Rovira, Joan Josep (Elsevier, 2020-09)
      Article
      Restricted access - publisher's policy
      The changes in mechanical properties, hydrothermal degradation and cell adhesion were studied in 3Y-TZP under two different superficial modification patterns (uni- and multidirectional) with a surface roughness ranging ...
    • Fracture toughness measurements to understand local ductility of advanced high strength steels 

      Frómeta Gutiérrez, David (Institute of Physics (IOP), 2019-10-01)
      Article
      Open Access
      The determination of the material parameters that best predict the local ductility of high strength sheet materials has become the focus of active research. Even though several correlations have been proposed, they can ...
    • Regeneration of segmental defects in metatarsus of sheep with vascularized and customized 3D-printed calcium phosphate scaffolds 

      Vidal, Luciano; Kampleitner, Carina; Krissian, Stephanie; Brennan, Meadhbh; Hofmann, Oskar; Raymond Llorens, Santiago; Maazouz, Yassine; Ginebra Molins, Maria Pau; Rosset, P.; Layrolle, P (Nature, 2020-04-27)
      Article
      Open Access
      Although autografts are considered to be the gold standard treatment for reconstruction of large bone defects resulting from trauma or diseases, donor site morbidity and limited availability restrict their use. Successful ...
    • Identification of fracture toughness parameters to understand the fracture resistance of advanced high strength sheet steels 

      Frómeta Gutiérrez, David; Parareda, Sergi; Lara, Antoni; Molas Busquets, Sílvia; Casellas Padró, Daniel; Jonsén, P.; Calvo Muñoz, Jessica (2020-04-15)
      Article
      Restricted access - publisher's policy
      The fracture toughness of four advanced high strength steel (AHSS) thin sheets is evaluated through different characterization methodologies, with the aim of identifying the most relevant toughness parameters to describe ...
    • Polymers for bone repair 

      Rey Viñoles, Sergi; Engel López, Elisabeth; Mateos Timoneda, Miguel Ángel (Woodhead Publishing, 2019-01-11)
      Part of book or chapter of book
      Restricted access - publisher's policy
      The substitution of tissues due to tumors, pathologies, or traumatic accidents is well known, and different surgical branches perform these kinds of surgeries on a daily basis with relative ease. The substitution of bone ...
    • Indentation and scratch testing of a WC-6%wtCo cemented carbide: Corrosion effects on load-bearing capability and induced damage 

      Zheng, Yafeng; Fargas Ribas, Gemma; Lavigne, Olivier; Llanes Pitarch, Luis Miguel (2020-04-10)
      Article
      Restricted access - publisher's policy
      In this work, corrosion effects on the indentation and scratch response of a WC-6%Co hardmetal are investigated. Experimental variables include relative long corrosion times as well as indentation and scratch testing ...