Now showing items 1-20 of 45

  • A 3D finite element model of ventral furrow invagination in the Drosophila melanogaster embryo 

    Conte, Vito; Muñoz Romero, José; Miodownik, Mark (2008-04)
    Article
    Open Access
    The paper describes a mechanical model of epithelial tissue development in Drosophila embryos to investigate a buckling phenomenon called invagination. The finite element method is used to model this ventral furrow formation ...
  • AAR-based decomposition algorithm for non-linear convex optimisation 

    Rabiei, Syednima; Muñoz Romero, José (2014)
    Conference lecture
    Open Access
  • AAR-based decomposition algorithm for non-linear convex optimisation 

    Rabiei, Syednima; Muñoz Romero, José (2015)
    Article
    Open Access
    n this paper we present a method for decomposing a class of convex nonlinear programmes which are frequently encountered in engineering plastic analysis. These problems have second-order conic memberships constraints and ...
  • AAR-based decomposition method for limit analysis 

    Rabiei, Nima; Muñoz Romero, José (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2014)
    Conference lecture
    Open Access
  • AAR-based decomposition method for lower bound limit analysis 

    Muñoz Romero, José; Rabiei, Nima (2015-12-01)
    Article
    Open Access
    Despite the recent progress in optimisation techniques, finite-element stability analysis of realistic three-dimensional problems is still hampered by the size of the resulting optimisation problem. Current solvers may ...
  • AAR-based decomposition method for lower-bound limit analysis 

    Muñoz Romero, José; Rabiei, Syednima (2015)
    Article
    Open Access
    Despite the recent progress in optimisation techniques, finite-element stability analysis of realistic three-dimensional problems is still hampered by the size of the resulting optimisation problem. Current solvers may ...
  • A biomechanical analysis of ventral furrow formation in the Drosophila melanogaster embryo 

    Conte, Vito; Ulrich, Florian; Baum, Buzz; Muñoz Romero, José; Veldhuis, Jim; Brodland, Wayne; Miodownik, M. (2012-03-28)
    Article
    Open Access
    The article provides a biomechanical analysis of ventral furrow formation in the Drosophila melanogaster embryo. Ventral furrow formation is the first large-scale morphogenetic movement in the fly embryo. It involves ...
  • A deformation gradient decomposition method for the analysis of the mechanics of morphogenesis 

    Muñoz Romero, José; Barrett, K.; Miodownik, M. (2007-06)
    Article
    Open Access
    A new finite element model is proposed for the analysis of the mechanical aspects of morphogenesis and tested on the biologically well studied gastrulation phenomenon, in particular ventral furrow invagination of the ...
  • A note on upper bound formulations in limit analysis 

    Muñoz Romero, José; Huerta, Antonio; Bonet Carbonell, Javier; Peraire, Jaume (John Wiley & Sons, 2012-08-24)
    Article
    Restricted access - publisher's policy
    In this paper we study some recent formulations for the computation of upper bounds in limit analysis. We show that a previous formulation presented by the authors does not guarantee the strictness of the upper bound, ...
  • A truss element for modelling reversible softening in living tissues 

    Muñoz Romero, José; Conte, Vito; Asadipour, Nina; Miodownik, M. (2013-04-01)
    Article
    Open Access
    We resort to non-linear viscoelasticity to develop a truss element able to model reversible softening in lung epithelial tissues undergoing transient stretch. Such a Maxwell truss element is built by resorting to a ...
  • Cell-centered truss model for the analysis of cell rheology and remodelling 

    Muñoz Romero, José; Asadipour, Nina; Albo, Santiago (2013)
    Conference lecture
    Open Access
    Soft active tissues exhibit softening, hardening, and reversible fluidisation [14]. The result of these non-linear behaviour is due to multiple processes taking part at di erent scales: active protein motors that actuate ...
  • Cell-centred model for non-linear tissue rheology and active remodelling 

    Asadipour, Nina; Mosaffa, Payman; Muñoz Romero, José (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2014)
    Conference report
    Restricted access - publisher's policy
    Soft active tissues exhibit softening, hardening, and reversible fluidisation. The result of these non-linear behaviour is due to multiple processes taking part at different scales: active protein motors that actuate at ...
  • Cell-centred model for the simulation of curved cellular monolayers 

    Mosaffa, Payman; Asadipour, Nina; Millán, Raúl Daniel; Rodríguez Ferran, Antonio; Muñoz Romero, José (2015)
    Article
    Open Access
    This paper presents a cell-centred model for the simulation of planar and curved multicellular soft tissues. We propose a computational model that includes stress relaxation due to cell reorganisation (intercellular ...
  • Collective cell durotaxis emerges from long-range intercellular force transmission 

    Sunyer, Raimon; Conte, Vito; Escribano, Jorge; Elosegui Artola, Alberto; Labernadie, Anna; Valon, Leo; Navajas Navarro, Daniel; Garcia Aznar, José Manuel; Muñoz Romero, José; Trepat, Xavier (2016-09-09)
    Article
    Open Access
    The ability of cells to follow gradients of extracellular matrix stiffness—durotaxis—has been implicated in development, fibrosis, and cancer. Here, we found multicellular clusters that exhibited durotaxis even if isolated ...
  • Computational limit analysis for anchors and retaining walls 

    Muñoz Romero, José; Lyamin, Andrei V.; Huerta, Antonio (Universitat Politècnica de Catalunya. Escola Tècnica Superior de Camins Canals i Ports de Barcelona, 2011-11-15)
    Conference lecture
    Open Access
    The computation of the bearing capacity of engineering structures commonly relays on results obtained for simple academic examples. Recent developments in computational limit analysis have allowed engineers to compute ...
  • Computation of bounds for anchor problems in limit analysis and decomposition techniques 

    Muñoz Romero, José; Rabiei, Syednima; Lyamin, Andrei; Huerta, Antonio (Springer, 2013-07-15)
    Part of book or chapter of book
    Open Access
    Numerical techniques for the computation of strict bounds in limit analyses have been developed for more than thirty years. The efficiency of these techniques have been substantially improved in the last ten years, and ...
  • Computation of forces from deformed visco-elastic biological tissues 

    Muñoz Romero, José; Amat Olóndriz, David; Conte, Vito (2018-04-01)
    Article
    Open Access
    We present a least-squares based inverse analysis of visco-elastic biological tissues. The proposed method computes the set of contractile forces (dipoles) at the cell boundaries that induce the observed and quantified ...
  • Conserving time-integration of beams under contact constrains using B-Spline interpolation 

    Sibilieau, Alberto; Muñoz Romero, José (2011)
    Conference report
    Open Access
    The design of energy-momentum algorithms for geometrically exact beams has been achieved more than 15 years ago. However, many of the desired conserivng propeties do not carry over into constrained systems such as beams ...
  • Control of cell-cell forces and collective cell dynamics by the intercellular adhesome 

    Bazellieres, Elsa; Conte, Vito; Elosegui Artola, Alberto; Serra-Picamal, Xavier; Bintanel Morcillo, Maria; Roca Cusachs, Pere; Muñoz Romero, José; Sales Pardo, Marta; Guimerà, Roger; Trepat Guixer, Xavier (2015-04-01)
    Article
    Open Access
    Dynamics of epithelial tissues determine key processes in development, tissue healing and cancer invasion. These processes are critically influenced by cell-cell adhesion forces. However, the identity of the proteins that ...
  • Decomposition techniques in computational limit analysis 

    Muñoz Romero, José; Rabiei, Syednima; Huerta, Antonio (2013)
    Conference lecture
    Open Access
    Numerical techniques for the computation of strict bounds in limit analyses have been developed for more than thirty years. The efficiency of these techniques have been substantially improved in the last ten years, and ...