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Scientific contributions

Most of my research is devoted to improve our understanding of the mechanical behavior of fiber reinforced composite materials by means of computational models. In this way, we will make better predictions and eventually we will be able to design lighter, stronger and tougher structures.

Scientific publications

I have contributed in the following scientific publications:

  • M. Rueda-Ruiz, M. Herráez, F. Sket, F. Gálvez, C. González, J. M. Molina-Aldareguia, Study of the effect of strain rate on the in-plane shear and transverse compression response of a composite ply using computational micromechanics, Composites Part A: Applied Science and Manufacturing, 2022 (submitted). doi:10.1016/j.compositesa.2023.107482
  • S. Costa, H. Zrida, R. Olsson, M. Herráez, R. Östlund, A unified physically-based finite deformation model for damage growth in composites, Composites Part A: Applied Science and Manufacturing, 107103 (2022). doi:10.1016/j.compositesa.2022.107103
  • V. Rodríguez-García, M. Herráez, V. Martínez, and R. Guzmán de Villoria, Interlaminar and translaminar fracture toughness of Automated Manufactured Bio-inspired CFRP laminates, Compos. Sci. Technol., 219, (2022). doi:10.1016/j.compscitech.2021.109236
  • A. Rafie, H. Madadi, A. Farrokhabadi, M. Herráez, In situ strength analysis of cross‐ply composite laminates containing defects and interleaved woven layers using a computational micromechanics approach, Fatigue Fract. Eng. Mater. Struct. (2021). doi:10.1111/ffe.13425
  • N. Pichler, M. Herráez, and J. Botsis. Mixed-mode fracture response of anti-symmetric laminates: Experiments and modelling. Composites Part B: Engineering, 197, 108089 (2020). doi:10.1016/j.compositesb.2020.108089
  • M. Herráez, N. Pichler, and J. Botsis. Improving Delamination Resistance Through Tailored Defects. Composite Structures, 112422 (2020).  doi:10.1016/j.compstruct.2020.112422
  • M. Herráez, N. Pichler, G. A. Pappas, C. Blondeau, and J. Botsis. Experiments and numerical modelling on angle-ply laminates under remote mode II loading. Composites Part A: Applied Science and Manufacturing, 134, 105886 (2020). doi:10.1016/j.compositesa.2020.105886
  • J. I. Múgica, C. S. Lopes, F. Naya, M. Herráez, V. Martínez, and C. González. Multiscale modelling of thermoplastic woven fabric composites: From micromechanics to mesomechanics. Compos. Struct., p. 111340, (2019). doi:10.1016/j.compstruct.2019.111340
  • S. Haldar, M. Herráez, F. Naya, C. González, C.S. Lopes. Relations between intralaminar micromechanisms and translaminar fracture behavior of unidirectional FRP supported by experimental micromechanics. Compos. Part B. 174 (2019). doi:10.1016/j.compositesb.2019.107000
  • S. Sádaba, M. Herráez, F. Naya, C. González, J. LLorca, C.S. Lopes. Special-purpose elements to impose Periodic Boundary Conditions for multiscale computational homogenization of composite materials with the explicit Finite Element Method. Comp. Struct. 208 (2019) pp. 434-441. doi:10.1016/j.compstruct.2018.10.037
  • M. Herráez, A.C. Bergan, C. González, C.S. Lopes. Modeling Fiber Kinking at the Microscale and Mesoscale. Tech Rep., NASA/TP-2018-220105.
  • M. Herráez, C. González, C.S. Lopes. A numerical framework to analyze fracture in composite materials: from R-curves to homogenized softening laws. Int. J. Solids Struct. 134 (2018) pp. 216-228. doi:10.1016/j.ijsolstr.2017.10.031
  • A. García-Carpintero, B.N.G. van den Beuken, S. Haldar, M. Herráez, C. González, C.S. Lopes. Fracture behaviour of triaxial braided composites and its simulation using a multi-material shell modelling approach. Eng. Fract. Mech. 188 (2018) pp. 268-286. doi:10.1016/j.engfracmech.2017.08.034
  • A. García-Carpintero, M. Herráez, J. Xu, C.S. Lopes, C. González. A Multi Material Shell Model for the Mechanical Analysis of Triaxial Braided Composites. Appl. Compos. Mater. 24 (2017) pp. 1425-1445. doi:10.1007/s10443-017-9593-9
  • F. Naya, M. Herráez, C. González, C.S. Lopes, S. Van der Veen, F. Pons. Computational micromechanics of fiber kinking in unidirectional FRP under different environmental conditions. Compos. Part A Appl. Sci. Manuf. 144 (2017) pp. 26-35.  doi:10.1016/j.compscitech.2017.03.014
  • M. Herráez, F. Naya, C. González, M.A. Monclús, J.M. Molina-Aldareguía, J. Llorca, Microscale Characterization Techniques of Fibre-Reinforced Polymers, in: P.W.R. Beaumont, C. Soutis, A. Hodzic (Eds.), Structural Integrity of Carbon Fibre Composites, Springer International Publishing, Cham, 2017: pp. 283-299. doi:10.1007/978-3-319-46120-5
  • M. Herráez, A. Fernández, C.S. Lopes, C. González. Strength and toughness of structural fibres for composite materials reinforcement. Phil. Trans. R. Soc. A, 374 (2016). doi:10.1098/rsta.2015.0274
  • M. Herráez, C. González, C.S. Lopes, R. Guzmán de Villoria, J. LLorca, T. Varela, J. Sánchez. Computational micromechanics evaluation of the effect of fibre shape on the transverse strength of unidirectional composites: An approach to virtual materials design. Compos. Part A Appl. Sci. Manuf, 91 (2016) pp. 484-492. doi:10.1016/j.compositesa.2016.02.026
  • M. Herráez, D. Mora, F. Naya, C.S. Lopes, C. González, J. Llorca. Transverse cracking of cross-ply laminates: A computational micromechanics perspective. Compos. Sci. Technol. 110 (2015) pp. 196-204. doi:10.1016/j.compscitech.2015.02.008

Technical conferences

I have also presented most of my research work in the following conferences, maybe we coincided in any of them:
  • M. Herráez, N. Pichler, J. Botsis. Increasing delamination resistance through tailored defects in layered composites. Oral presentation at the 20ᵗʰ European Conference on Composite Materials (ECCM20). Lausanne, Switzerland, June 2022
  • M. Herráez, N. Pichler, C. Blondeau, G. Pappas, J. Botsis. Experimental Response and Numerical Modelling of Crack Migration on Angle-ply Laminates. Oral presentation at the 7ᵗʰ ECCOMAS Thematic Conference on The Mechanical Response of Composites (Composites 2019). Girona, Spain, September 2019
  • M. Herráez, C. González, C.S. Lopes. A Numerical Framework To Analyze Fracture in Composite Materials: From Simulated Crack Resistance Curves to Homogenized Softening Laws. Oral presentation at the 7ᵗʰ ECCOMAS Thematic Conference on The Mechanical Response of Composites (Composites 2019). Girona, Spain, September 2019
  • M. Herráez, C. Blondeau, N. Pichler, G. Pappas, J. Botsis. Crack migration: Experiments and Numerical Modeling on Angle-ply Laminates. Oral presentation at the 9ᵗʰ International Conference on Composites Testing and Model Identification (CompTest19). Lulea, Sweden, May 2019
  • M. Herráez, A.C. Bergan, C. González, C.S. Lopes. Fiber kinking: from micro to mesomechanics. Oral presentation at the 55ᵗʰ Annual Technical Meeting of the Society of Engineering Science (SES 2018). Madrid, Spain, October 2018
  • M. Herráez, A.C. Bergan, C. González, C.S. Lopes. Fiber kinking: from micro to mesomechanics. Conference paper and oral presentation at the 6ᵗʰ ECCOMAS Thematic Conference on the Mechanical Response of Composites (Composites 2017). Eindhoven, The Netherlands, September 2017
  • M. Herráez, C. González, C.S. Lopes. Bottom-up Multiscale Approach on Transverse Cracking of Cross-ply Laminates. Oral presentation at the 5ᵗʰ International Conference on Computational Modeling of Fracture and Failure of Materials and Structures (CFRAC 2017). Nantes, France, June 2017
  • M. Herráez, C. González, C.S. Lopes. Intralaminar Fracture Toughness Characterization: A Computational Micromechanics Perspective. Seminar in USAF Wright-Patterson Base. Dayton (OH), USA, October 2016
  • M. Herráez, C. González, C.S. Lopes. Intralaminar Fracture Toughness Characterization: A Computational Micromechanics Perspective. Oral presentation at the 15ᵗʰ European Mechanics of Materials Conference (EMMC15). Brussels, Belgium, September 2016
  • M. Herráez, C. González, C.S. Lopes. Intralaminar Fracture Toughness Characterization: A Computational Micromechanics Perspective. Conference paper and oral presentation at the 17ᵗʰ European Conference on Composite Materials (ECCM17). Munich, Germany, June 2016
  • M. Herráez, A. Fernández, C. González, C.S. Lopes. Resistencia y tenacidad de fibras estructurales para refuerzo de materiales compuestos. Oral presentation at the 33ᵉʳ Encuentro del Grupo Español de Fractura (GEF33). San Sebastián, Spain, March 2016
  • M. Herráez, C. González, C.S. Lopes, R. Guzmán, T. Blanco, J. Sánchez. A Computational Micromechanics Approach for Ply Properties Optimization. Oral presentation at the 9ᵗʰ European Solid Mechanics Conference (ESMC9). Madrid, Spain, July 2015
  • M. Herráez, C. González, C.S. Lopes. A Computational Micromechanics Approach for Ply Properties Optimization. Oral presentation at the 7ᵗʰ International Conference on Composites Testing and Model Identification (CompTest15). Madrid, Spain, April 2015
  • M. Herráez, C. González, C.S. Lopes, R. Guzmán. Non-circular Cross Section Carbon Fibers. Poster and oral presentation at the 24ᵗʰ International Workshop on Computational Micromechanics (IWCMM24). Madrid, Spain, October 2014
  • M. Herráez, A.M. Abad, C. Navarro, E.J. Barbero. Acoustic Emission Characterization of Intralaminar Damage in Composite Laminates. Oral presentation at 13ᵉʳ Congreso Nacional de Materiales Compuestos (MATCOMP13). Algeciras, Spain, July, 2013
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