Now showing items 1-20 of 21

    • A constitutive model for the anelastic behavior of Advanced High Strength Steels 

      Torkabadi, A.; Van Liempt, P.; Meinders, V.T.; Van den Boogaard, A.H. (CIMNE, 2015)
      Conference report
      Open Access
      In this work a physically based model describing the anelastic behaviour and nonlinear unloading in Advanced High Strength Steels (AHSS) is proposed. The model is fitted to the experimental data obtained from uni-axial ...
    • 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)
      Conference report
      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 ...
    • Applying new blow-forming processes to obtain new structural components for automotiva industry: A-pillar 

      Oliveras Mérida, Víctor; Ripoll, Xavier Agusti; Ferstl, Markus; Zahinos Ruiz, Abel; Clua, Victor (2011)
      Conference lecture
      Open Access
      The aim of this project is to determine the technical viability of the bodywork manufacturing process using the blow-forming technology. Specifically, the blow-forming technology has been studied to be applied to manufacture ...
    • Avaluació del comportament en calent i evolució microestructural d’un acer TWIP 

      Puig Valls, Oriol (Universitat Politècnica de Catalunya, 2011-08)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      Aquest document és un Projecte Final de Carrera d’Enginyeria de Materials i és un estudi del comportament en calent d’un acer austenític d’alt contingut en manganès, englobat dins dels denominats acers avançats d’alta ...
    • Desarrollo de aleaciones TWIP por molienda mecánica 

      Pérez Pablo, Sergio (Universitat Politècnica de Catalunya, 2017-06)
      Bachelor thesis
      Restricted access - author's decision
      En este trabajo fin de grado se han intentado conseguir piezas de acero de composición TWIP (TWinning induced plasticity) a partir de polvo de acero de esta misma composición. El objetivo principal es conseguir un acero ...
    • 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 ...
    • Effect of heat treatment and hot working on the microstructural characteristics of TWIP steels 

      Gallot, Edith (Universitat Politècnica de Catalunya, 2011-02)
      Master thesis (pre-Bologna period)
      Open Access
      Austenitic twinning-induced plasticity (TWIP) steels, which rely on high manganese (Mn) contents, provide great potential in applications for structural components in the automotive industry. These steels exhibit an ...
    • Effect of sandblasting on low and high-cycle fatigue behaviour after mechanical cutting of a twinning-induced plasticity steel 

      Lara, Antoni; Roca Puigvert, Mercè; Parareda, Sergi; Cuadrado Lafoz, Nuria; Calvo Muñoz, Jessica; Casellas Padró, Daniel (2018)
      Conference report
      Open Access
      In the last years, car bodies are increasingly made with new advanced high-strength steels, for both lightweighting and safety purposes. Among these new steels, high-manganese or TWIP steels exhibit a promising combination ...
    • Estudio teórico y aplicación de un acero CP en pieza estampada para automoción 

      Lozano López, Alberto (Universitat Politècnica de Catalunya, 2015-11)
      Master thesis (pre-Bologna period)
      Restricted access - confidentiality agreement
    • Evaluation of essential work of fracture in a dual phase high strength steel sheet 

      Gutierrez, David; Pérez Caro, Lluís; Lara, Antoni; Casellas Padró, Daniel; Prado Pozuelo, José Manuel (2013-01)
      Article
      Open Access
      La tenacidad de fractura de aceros de alta resistencia (AHSS), es una propiedad interesante para optimizar el com- portamiento a impacto, pero su caracterización experimental en chapas metálicas es compleja debido a su ...
    • 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 ...
    • Fracture toughness to understand stretch-flangeability and edge cracking resistance in AHSS 

      Casellas Padró, Daniel; Lara, Antoni; Frómeta Gutiérrez, David; Gutierrez Castillo, David; Molas Busquets, Sílvia; Pérez Caro, Lluís; Rehrl, Johannes; Suppan, Clemens (2016-10-20)
      Article
      Open Access
      The edge fracture is considered as a high risk for automotive parts, especially for parts made of advanced high strength steels (AHSS). The limited ductility of AHSS makes them more sensitive to the edge damage. The ...
    • In-situ strengthening of a high strength low alloy steel during Wire and Arc Additive Manufacturing (WAAM) 

      Rodrigues, Tiago; Duarte, Valdemar; Tomás, David; Ávila Díaz, Julián Arnaldo; Escobar, Julian; Rossinyol, Emma; Schell, N.; Santos, Telmo; Oliveira Pedro, Joao (Elsevier, 2020-08)
      Article
      Open Access
      In this work, SiC particles were added to the molten pool during WAAM of a high strength low alloy steel. The introduction of these high melting point particles promoted grain refinement, and the precipitation of Fe3C due ...
    • Increment de la resistència al desgast en acers Maraging mitjançant tècniques de modificació superficial 

      Molas Busquets, Sílvia (Universitat Politècnica de Catalunya, 2013-07)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      Durant els darreres anys s’ha potenciat la investigació d’acers d’alta resistència per tal de millorar la seguretat dels vehicles i reduir-ne el pes ja que al presentar majors resistències mecàniques permet disminuir ...
    • Influencia de la microestructura en la nucleación y propagación de grietas en aceros para herramientas 

      Ruiz Wills, Carlos (Universitat Politècnica de Catalunya, 2010-09)
      Master thesis
      Restricted access - author's decision
      El uso de los aceros avanzados de alta resistencia mecánica (AHSS) para la elaboración de chapas para automóviles trae consigo una disminución en el peso de los coches lo que implica un menor consumo de combustible y una ...
    • Microstructure and mechanical properties of Nb-API X70 low carbon steel 

      Faria Conde, Fabio; Pina, Felipe; Giarola, Joseane; Pereira, Gualter; Ávila Díaz, Julián Arnaldo; Francisco, Julio; Bose Filho, Waldek (Springer, 2021-08-11)
      Article
      Open Access
      The oil and gas production has grown steadily, and the care with its transportation grid needs to be maintained and expanded. The pipeline used in the transport of gas and oil by-product requires materials with high ...
    • Montaje y puesta a punto de una instalación de corte y estampación en caliente de chapa de acero al boro 

      Ávalos Chavajay, Abraham (Universitat Politècnica de Catalunya, 2017-06)
      Bachelor thesis
      Restricted access - author's decision
      Covenantee:   Centre Tecnològic de Manresa
      Los aceros avanzados de ultra alta resistencia (UHSS) actualmente se utilizan extensivamente por las empresas automovilísticas, para la conformación de piezas de carrocería y chasis, con el objetivo de optimizar el peso ...
    • On the correlation between fracture toughness and crash resistance of advanced high strength steels 

      Frómeta Gutiérrez, David; Lara, Antoni; Molas Busquets, Sílvia; Casellas Padró, Daniel; Rehrl, Johannes; Suppan, Clemens; Larour, Patrick; Calvo Muñoz, Jessica (2019-01-01)
      Article
      Restricted access - publisher's policy
      Automotive industry players have devoted large efforts to identify the material parameters governing the crash resistance of Advanced High Strength Steels (AHSS). Such knowledge is essential to improve impact performance ...
    • Propagación de grietas por fatiga en probetas CT de un acero AHSS soldado 

      Roca Sobrevals, Mercè (Universitat Politècnica de Catalunya, 2017-06)
      Bachelor thesis
      Restricted access - author's decision
      En este proyecto se pretende estudiar cómo afecta un proceso de soldadura a un acero AHSS mediante probetas de tensión compacta C(T). Los aceros AHSS están siendo ampliamente utilizados en aplicaciones automotrices con ...
    • Tensile and compressive test in nanocrystalline and ultrafine carbon steel 

      Rodríguez Baracaldo, R.; Benito Páramo, José Antonio; Cabrera Marrero, José M. (2010-09)
      Article
      Restricted access - publisher's policy
      Plastic deformation behavior was investigated in near fully dense nanostructured and ultrafine-grained bulk samples of carbon steel (0.55 wt% C) under compression and tension tests. The specimens were obtained by hot ...