Peer-reviewed journal publications

  1. Virazelsa, T., García-Molleja, J., Frehn, A., Lewis, P., Rodríguez-Martínez, J. A., Sket, F., Romero, I. (2026). Microstructural characterization and Bayesian calibration of the shock and spall response of metal matrix composites. International Journal of Plasticity. http://dx.doi.org/10.1016/j.ijplas.2026.104808.
  2. Castillón, M., Segurado, J., Romero, I. (2026). A correction method for crack area overestimation in phase-field fracture. Computational Mechanics. http://dx.doi.org/10.1007/s00466-026-02834-2.
  3. Romero, I., Ortiz, M. (2026). Identification of optimal history variables and corresponding hereditary laws in linear viscoelasticity. Computer Methods in Applied Mechanics and Engineering, 461, 119122. http://dx.doi.org/10.1016/j.cma.2026.119122.
  4. Schenk, C., Romero, I. (2026). A Framework for the Bayesian Calibration of Complex and Data-Scarce Models in Applied Sciences. Archives of Computational Methods in Engineering. http://dx.doi.org/10.1007/s11831-026-10665-w.
  5. Kaleem, A., Gebhardt, C., Romero, I. (2026). On the pure traction problem of linear elasticity: A regularized formulation and its robust approximation. Computer Methods in Applied Mechanics and Engineering, 459, 119105. http://dx.doi.org/10.1016/j.cma.2026.119105.
  6. Romero, I., Ortiz, M. (2026). A note on data-driven methods for mechanical problems with non-unique solutions. Meccanica, 61(1). http://dx.doi.org/10.1007/s11012-026-02087-6.
  7. Portillo, D., Romero, I. (2026). Embedding structures in continua: linear models and finite element discretizations. Computer Methods in Applied Mechanics and Engineering, 451, 118683. http://dx.doi.org/10.1016/j.cma.2025.118683.
  8. Castillón, M., Romero, I., Segurado, J. (2026). A phase-field approach to fracture and fatigue analysis: bridging theory and simulation. International Journal of Fatigue, 205, 109397. http://dx.doi.org/10.1016/j.ijfatigue.2025.109397.
  9. Bell-Navas, E., Portillo, D., Romero, I. (2025). A fully variational numerical method for structural topology optimization based on a Cahn-Hilliard model. Computer Methods in Applied Mechanics and Engineering, 445, 118233. http://dx.doi.org/10.1016/j.cma.2025.118233.
  10. Cantón-Sánchez, R., Romero, I. (2025). Fluid-structure interaction between dimensionally-reduced nonlinear dragged solids and incompressible flows. Computer Methods in Applied Mechanics and Engineering, 446, 118211. http://dx.doi.org/10.1016/j.cma.2025.118211.
  11. Romero, I., Ortiz, M. (2025). An energy-stepping Markov Monte Carlo method. Meccanica, 60, 1411–1436. http://dx.doi.org/10.1007/s11012-025-01997-1.
  12. Pandolfi, A., Romero, I., Ortiz, M. (2025). An optimal-transport finite-particle method for driven mass diffusion. Computer Methods in Applied Mechanics and Engineering, 442, 118013. http://dx.doi.org/10.1016/j.cma.2025.118013.
  13. Ortiz-Toranzo, Á., Romero, I. (2024). Finite Element Discretization of the Thermo-Diffusive-Mechanical Problem with Large Deformations. Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería, 40(4). http://dx.doi.org/10.23967/j.rimni.2024.10.56364.
  14. Andrés, E. M., Romero, I. (2024). A variational method for the simulation of hydrogen diffusion in metals. Mechanics of Materials, 105166. http://dx.doi.org/10.1016/j.mechmat.2024.105166.
  15. Schenk, C., Vasudevan, A., Haranczyk, M., Romero, I. (2024). Model-Based Reinforcement Learning Control of Reaction-Diffusion Problems. Optimal Control Applications and Methods, 45, 2897-2914. http://dx.doi.org/10.1002/oca.3196.
  16. Rossi, N., Romero, I., Huespe, A. (2024). On the limit behavior of lattice-type metamaterials with bi-stable mechanisms. International Journal of Mechanical Sciences, 276, 109375. http://dx.doi.org/10.1016/j.ijmecsci.2024.109375.
  17. Vasudevan, A., Rodríguez-Martínez, J., Romero, I. (2023). Analysis and design of bistable and thermally reversible metamaterials inspired by shape-memory alloys. International Journal of Solids and Structures, 275(112278). http://dx.doi.org/10.1016/j.ijsolstr.2023.112278.
  18. Romero, I., Schenk, C. (2023). Connecting beams and continua: variational basis and mathematical analysis. Meccanica, 58, 1973-1982. http://dx.doi.org/10.1007/s11012-023-01702-0.
  19. Cantón-Sánchez, R., Portillo, D., Romero, I. (2023). Dimensionally reduced, nonlinear dragged solids: Theory and finite elements for rigid and shell-like bodies. European Journal of Mechanics - A/Solids, 100, 104980. http://dx.doi.org/10.1016/j.euromechsol.2023.104980.
  20. de Pablos, J., Sabirov, I., Romero, I. (2023). A methodology for the calibration of complex material models: application to thermo-elasto-plastic materials for high-velocity impact simulations. Archives of Computational Methods in Engineering, 30, 2859-2888. http://dx.doi.org/10.1007/s11831-023-09888-y.
  21. Schenk, C., Portillo, D., Romero, I. (2023). Linking discrete and continuum diffusion models: Well-posedness and stable finite element discretizations. International Journal for Numerical Methods in Engineering, 124(9), 2105-2121. http://dx.doi.org/10.1002/nme.7204.
  22. Romero, I., Ortiz, M. (2023). Extended molecular dynamics: Seamless temporal coarse-graining and transition between deterministic and probabilistic paradigms. European Journal of Mechanics - A/Solids, 97, 104858. http://dx.doi.org/10.1016/j.euromechsol.2022.104858.
  23. Elahi, S., Tavakoli, R., Romero, I., Tourret, D. (2023). Grain growth competition during melt pool solidification — Comparing phase-field and cellular automaton models. Computational Materials Science, 216, 111882. http://dx.doi.org/10.1016/j.commatsci.2022.111882.
  24. Elahi, S., Tavakoli, R., Boukellal, A., Isensee, T., Romero, I., Tourret, D. (2022). Multiscale simulation of powder-bed fusion processing of metallic alloys. Computational Materials Science, 209, 111383. http://dx.doi.org/10.1016/j.commatsci.2022.111383.
  25. Ruiz, D., Portillo, D., Romero, I. (2021). A data-driven method for dissipative thermomechanics. IFAC-PapersOnLine, 54(19), 315–320. http://dx.doi.org/10.1016/j.ifacol.2021.11.096.
  26. Romero, I., Andrés, E. M., Ortiz-Toranzo, Á. (2021). Variational updates for general thermo–chemo–mechanical processes of inelastic solids. Computer Methods in Applied Mechanics and Engineering, 385, 114013. http://dx.doi.org/10.1016/j.cma.2021.114013.
  27. Gebhardt, C. G., Romero, I. (2021). On a nonlinear rod exhibiting only axial and bending deformations: mathematical modeling and numerical implementation. Acta Mechanica, 232, 3285-3847. http://dx.doi.org/10.1007/s00707-021-03038-w.
  28. Tapia-Fernández, S., Alonso-Miyazaki, P. H., Romero, I., García-Beltrán, Á. (2021). Strategy and algorithms for the parallel solution of the nearest neighborhood problem in shared-memory processors. Engineering with Computers. http://dx.doi.org/10.1007/s00366-021-01304-y.
  29. Schiebl, M., Romero, I. (2021). Energy-momentum conserving integration schemes for molecular dynamics. Computational Mechanics, 67, 915–935. http://dx.doi.org/10.1007/s00466-020-01971-6.
  30. Cantón-Sánchez, R., Romero, I. (2021). Dimensionally reduced nonlinear solids with general loads and constitutive laws: Theory and finite element formulation for rod-like bodies. International Journal of Solids and Structures, 210-211, 273–288. http://dx.doi.org/10.1016/j.ijsolstr.2020.11.024.
  31. de Pablos, J. L., Menga, E., Romero, I. (2020). A Methodology for the Statistical Calibration of Complex Constitutive Material Models: Application to Temperature-Dependent Elasto-Visco-Plastic Materials. Materials, 13(19), 4402. http://dx.doi.org/10.3390/ma13194402.
  32. Gebhardt, C. G., Romero, I. (2020). The rotating rigid body model based on a non-twisting frame. Journal Nonlinear Science, 99(2), 137–35. http://dx.doi.org/10.1007/s00332-020-09648-3.
  33. Romero, I., Gebhardt, C. G. (2020). Variational principles for nonlinear Kirchhoff rods. Acta Mechanica, 231, 625–647. http://dx.doi.org/10.1007/s00707-019-02562-0.
  34. Portillo, D., Oesterle, B., Thierer, R., Bischoff, M., Romero, I. (2020). Structural models based on 3D constitutive laws: Variational structure and numerical solution. Computer Methods in Applied Mechanics and Engineering, 362, 112872. http://dx.doi.org/10.1016/j.cma.2020.112872.
  35. Gebhardt, C. G., Romero, I., Rolfes, R. (2020). A new conservative/dissipative time integration scheme for nonlinear mechanical systems. Computational Mechanics, 65, 405–427. http://dx.doi.org/10.1007/s00466-019-01775-3.
  36. Menga, E., Sánchez, M. J., Romero, I. (2019). Anisotropic meta-models for computationally expensive simulations in nonlinear mechanics. International Journal for Numerical Methods in Engineering, 121(5), 904–924. http://dx.doi.org/10.1002/nme.6250.
  37. Li, J., Romero, I., Segurado, J. (2019). Development of a thermo-mechanically coupled crystal plasticity modeling framework: Application to polycrystalline homogenization. International Journal of Plasticity, 119, 313–330. http://dx.doi.org/10.1016/j.ijplas.2019.04.008.
  38. Menga, E., Sánchez, M. J., Romero, I., Hernández, S. (2019). A sample-based approach to estimate the dynamic loads of components with nonlinear uncertain interfaces. Aerospace Science and Technology, 87, 369–378. http://dx.doi.org/10.1016/j.ast.2019.02.012.
  39. del Pozo, D., López-Gómez, I., Romero, I. (2019). A robust asymmetrical contact algorithm for explicit solid dynamics. Computational Mechanics, 64, 15–32. http://dx.doi.org/10.1007/s00466-018-1654-x.
  40. Romero, I. (2018). Coupling nonlinear beams and continua: Variational principles and finite element approximations. International Journal for Numerical Methods in Engineering, 114, 1192–1212. http://dx.doi.org/10.1002/nme.5782.
  41. Kern, D., Romero, I., Martín, S. C., García-Orden, J. C. (2018). Performance Assessment of Variational Integrators for Thermomechanical Problems. Journal of Theoretical and Applied Mechanics, 48(2), 3–23. http://dx.doi.org/10.2478/jtam-2018-0008.
  42. Romero, I. (2017). A generalization of Castigliano's theorems for structures with eigenstrains. Archive of Applied Mechanics, 24(4), 1727–1737. http://dx.doi.org/10.1007/s00419-017-1282-5.
  43. del Pozo, D., Romero, I. (2017). Formulation and numerical solution of non-smooth elasto-visco-plasticity models. Computer Methods in Applied Mechanics and Engineering, 324, 457–475. http://dx.doi.org/10.1016/j.cma.2017.06.013.
  44. Portillo, D., García Orden, J. C., Romero, I. (2017). Energy-Entropy-Momentum integration schemes for general discrete non-smooth dissipative problems in thermomechanics. International Journal for Numerical Methods in Engineering, 112(7), 776–802. http://dx.doi.org/10.1002/nme.5532.
  45. Urrecha, M., Romero, I., de Felipe, J., Merchán-Pérez, Á. (2017). Influence of cerebral blood vessel movements on the position of perivascular synapses. PLOS ONE, 12(2), e0172368. http://dx.doi.org/10.1371/journal.pone.0172368.
  46. Portillo, D., del Pozo, D., Rodríguez-Galán, D., Segurado, J., Romero, I. (2017). MUESLI - a Material UnivErSal LIbrary. Advances in Engineering Software, 105, 1–8. http://dx.doi.org/10.1016/j.advengsoft.2017.01.007.
  47. Tapia-Fernández, S., Romero, I., García-Beltrán, Á. (2017). A new approach for the solution of the neighborhood problem in meshfree methods. Engineering with Computers, 33(2), 239–247. http://dx.doi.org/10.1007/s00366-016-0468-8.
  48. Urrecha, M., Romero, I. (2016). Un método sin malla y estabilizado para la resolución de las ecuaciones lagrangianas de los fluidos newtonianos. Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería, 32, 116–124. http://dx.doi.org/doi:10.1016/j.rimni.2015.02.006.
  49. González-Ferreiro, B., Romero, I., Ortiz, M. (2016). A numerical method for the time coarsening of transport processes at the atomistic scale. Modelling and Simulation in Materials Science and Engineering, 24(4), 045011–45026. http://dx.doi.org/10.1088/0965-0393/24/4/045011.
  50. Venturini, G., Wang, K., Romero, I., Ariza, M. P., Ortiz, M. (2014). Atomistic long-term simulation of heat and mass transport. Journal of the Mechanics and Physics of Solids, 73, 242–268. http://dx.doi.org/10.1016/j.jmps.2014.09.008.
  51. Sadaba, S., Romero, I., Gonzalez, C., Llorca, J. (2014). A stable X-FEM in cohesive transition from closed to open crack. International Journal for Numerical Methods in Engineering, 101(7), 540–570. http://dx.doi.org/10.1002/nme.4809.
  52. Prieto de Pedro, M., Romero, I., Martín-Bragado, I. (2014). Multiscale modeling of defect formation during solid phase epitaxy regrowth of silicon. Acta Materialia, 82, 115–122. http://dx.doi.org/DOI: 10.1016/j.actamat.2014.07.067.
  53. Conde Martín, S., García Orden, J. C., Romero, I. (2014). Energy-consistent time integration for nonlinear viscoelasticity. Computational Mechanics, 54(2), 473–488. http://dx.doi.org/10.1007/s00466-014-1000-x.
  54. González-Ferreiro, B., Gómez, H., Romero, I. (2014). A thermodynamically consistent numerical method for a phase field model of solidification. Communications in Nonlinear Science and Numerical Simulation, 19(20), 2309–2323. http://dx.doi.org/10.1016/j.cnsns.2013.11.016.
  55. Romero, I., Urrecha, M., Cyron, C. J. (2014). A torsion-free nonlinear beam model. International Journal of Non-Linear Mechanics, 58, 1–10. http://dx.doi.org/10.1016/j.ijnonlinmec.2013.08.008.
  56. Romero, I. (2013). A Characterization of Conserved Quantities in Non-Equilibrium Thermodynamics. Entropy, 15(12), 5580–5596. http://www.mdpi.com/1099-4300/15/12/5580.
  57. Ponga, M., Romero, I., Ortiz, M., Ariza, M. P. (2012). Finite temperature nanovoids evolution in FCC metals using quasicontinuum method. Key Engineering Materials, 488–489, 387–390. http://www.scientific.net/KEM.488-489.387.
  58. Ariza, M. P., Romero, I., Ponga, M., Ortiz, M. (2012). HotQC simulation of nanovoid growth under tension in copper. International Journal of Fracture, 174, 75–85.
  59. García Orden, J. C., Romero, I. (2012). Energy-Entropy-Momentum integration of discrete thermo-visco-elastic dynamics. European Journal of Mechanics - A/Solids, 32, 76–87.
  60. Romero, I. (2012). An analysis of the stress formula for energy-momentum methods in nonlinear elastodynamics. Computational Mechanics, 50(5), 603–610. http://dx.doi.org/10.1007/s00466-012-0693-y.
  61. Planas, J., Romero, I., Sancho, J. M. (2012). B free. Computer Methods in Applied Mechanics and Engineering, 217-220, 226–235.
  62. Romero, I. (2010). Algorithms for coupled problems that preserve symmetries and the laws of thermodynamics. Part II: fractional step methods. Computer Methods in Applied Mechanics and Engineering, 199, 2235–2248.
  63. Romero, I. (2010). Algorithms for coupled problems that preserve symmetries and the laws of thermodynamics. Part I: monolithic integrators and their application to finite strain thermoelasticity. Computer Methods in Applied Mechanics and Engineering, 199(25-28), 1841–1858. http://dx.doi.org/10.1016/j.cma.2010.02.014.
  64. Romero, I., Arribas, J. J. (2009). A simple method to impose rotations and concentrated moments on ANC beams. Multibody System Dynamics, 21, 307–323.
  65. Romero, I. (2009). Thermodynamically consistent time stepping algorithms for nonlinear thermomechanical systems. International Journal for Numerical Methods in Engineering, 79(6), 706–732. http://dx.doi.org/10.1002/nme.2588.
  66. Romero, I., Arribas, J. J. (2009). A taxonomy of polar decompositions for singular second order tensors in R$^3$. Archives of Mechanics, 61(5), 383–390.
  67. Romero, I., Segurado, J., Llorca, J. (2008). Dislocation dynamics in non-convex domains using finite elements with embedded discontinuities. Modelling and Simulation in Materials Science and Engineering, 16.
  68. Romero, I. (2008). A comparison of finite elements for nonlinear beams: the absolute nodal coordinate and geometrically exact formulations. Multibody System Dynamics, 20(1), 51–68. http://dx.doi.org/10.1007/s11044-008-9105-7.
  69. Romero, I. (2008). Formulation and performance of variational integrators for rotating bodies. Computational Mechanics, 42, 825–836.
  70. Segurado, J., Llorca, J., Romero, I. (2007). Computational issues on the simulation of two-dimensional discrete dislocation dynamics. Modelling and Simulation in Materials Science and Engineering, 15, 361–375.
  71. Romero, I., Bischoff, M. (2007). Incompatible bubbles: a non-conforming finite element formulation for linear elasticity. Computer Methods in Applied Mechanics and Engineering, 196, 1662–1672.
  72. Lacoma, L. M., Romero, I. (2007). Error estimation for the HHT method in nonlinear solid dynamics. Computers & Structures, 85, 158–169. http://www.sciencedirect.com/science/article/pii/S0045794906003099.
  73. Bischoff, M., Romero, I. (2007). An extended method of incompatible modes. International Journal for Numerical Methods in Engineering, 69(9), 1851–1868.
  74. Romero, I., Lacoma, L. M. (2006). A methodology for the formulation of error estimators for time integration in solid and structural dynamics. International Journal for Numerical Methods in Engineering, 66(4), 635–660.
  75. Romero, I., Lacoma, L. M. (2006). Analysis of error estimators for the semidiscrete equations of linear solid and structural mechanics. Computer Methods in Applied Mechanics and Engineering, 195, 2674–2696.
  76. Lacoma, L. M., Romero, I. (2006). Estimación de error en dinámica de sólidos deformables. Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería, 22(1), 45–62.
  77. Romero, I. (2004). Stability analysis of linear multistep methods for classical elastodynamics. Computer Methods in Applied Mechanics and Engineering, 193, 2169–2189.
  78. Romero, I. (2004). The interpolation of rotations and its application to finite element models of geometrically exact rods. Computational Mechanics, 34(2), 121–133.
  79. Armero, F., Romero, I. (2003). Energy-dissipative momentum-conserving time-stepping algorithms for the dynamics of nonlinear cosserat rods. Computational Mechanics, 31, 3–26.
  80. Romero, I. (2002). On the stability and convergence of fully discrete solutions in linear elastodynamics. Computer Methods in Applied Mechanics and Engineering, 191, 3857–3882.
  81. Romero, I., Armero, F. (2002). Numerical integration of the stiff dynamics of geometrically exact shells: an energy-dissipative momentum-conserving scheme. International Journal for Numerical Methods in Engineering, 54(7), 1043–1086. http://dx.doi.org/10.1002/nme.463.
  82. Romero, I., Armero, F. (2002). An objective finite element approximation of the kinematics of geometrically exact rods and its use in the formulation of an energy-momentum conserving scheme in dynamics. International Journal for Numerical Methods in Engineering, 54(12), 1683–1716.
  83. Armero, F., Romero, I. (2001). On the formulation of high-frequency dissipative time-stepping algorithms for nonlinear dynamics. Part II: second order methods. Computer Methods in Applied Mechanics and Engineering, 190, 6783–6824.
  84. Armero, F., Romero, I. (2001). On the formulation of high-frequency dissipative time-stepping algorithms for nonlinear dynamics. Part I: low order methods for two model problems and nonlinear elastodynamics. Computer Methods in Applied Mechanics and Engineering, 190, 2603–2649.

Book chapters

  1. F. Armero and I. Romero (2001) On the objective and conserving integration of geometrically exact rod models. In W. A. Wall, K.-U. Bletzinger, and K. Schweizerhof, editors, Trends in computational structural mechanics. CIMNE, Barcelona, Spain.

  2. I. Romero and L. M. Lacoma (2007) Analysis and Improved Methods for the Error Estimation of Numerical Solutions in Solid and Multibody Dynamics. pages 69–89.

  3. I. Romero and J. J. Arribas (2011) Modeling and Simulations of the Dynamics of Growing Cell Clusters. In S. Li and B. Sun, editors, Advances in Cell Mechanics, pages 1–25. Springer, Berlin, Heidelberg. ISBN 978-3642175893. doi:10.1007/978-3-642-17590-9.

  4. I. Romero (2016) High frequency dissipative integration schemes for linear and nonlinear elastodynamics. In P. Betsch, editor, Structure-preserving integrators in nonlinear structural dynamics and flexible multibody dynamics, pages 1–30. Springer. ISBN 978-3-319-31877-6.

  5. I. Romero and M. Arnold (2017) Computing with Rotations: Algorithms and Applications, pages 1–27. John Wiley & Sons, LtdJohn Wiley & Sons, Ltd, Chichester, UK. ISBN 978-1119003793. doi:10.1002/9781119176817.ecm2119.