​​​​Emilio Martínez Pañeda

MEng, MSc, PhD

Author: EmilioMtnez

Korec et al. (CBM, 2023)

E. Korec, M. Jirasek, H.S. Wong, E. Martínez-Pañeda A phase-field chemo-mechanical model for corrosion-induced cracking in reinforced concrete CONSTRUCTION AND BUILDING MATERIALS (IN PRESS)

COMSOL implementation of electro-chemo-mechanical phase field corrosion

COMSOL implementation of phase field corrosion accounting for the role of mechanics and electrolyte electrochemistry. Paper: C. Cui, R. Ma, E. Martínez-Pañeda. Electro-chemo-mechanical phase field modeling of localized corrosion: theory and COMSOL implementation. Engineering with Computers (2023)

Cui et al. (EwC, 2023)

C. Cui, R. Ma, E. Martínez-PañedaElectro-chemo-mechanical phase field modeling of localized corrosion: theory and COMSOL implementationENGINEERING WITH COMPUTERS (IN PRESS)

Abaqus UEL subroutine for piezoresistive fracture

Abaqus UEL subroutine to simulate coupled deformation-electrical-phase field fracture behaviour in CNT-based composites. Paper: L. Quinteros, E. García-Macías, E. Martínez-Pañeda. Electromechanical phase-field fracture modelling of piezoresistive CNT-based composites. Computer Methods in Applied Mechanics and Engineering 407, 115941 (2023)

Julia code for phase field fracture and fatigue

Julia code for efficient fracture and fatigue predictions using the phase field method. Paper: P.K. Kristensen, A. Golahmar, E. Martínez-Pañeda, C.F. Niordson. Accelerated high-cycle phase field fatigue predictions. European Journal of Mechanics A/Solids 100, 104991 (2023)

Kovacevic et al. (Acta Bio, 2023)

S. Kovacevic, W. Ali, E. Martínez-Pañeda, J. LLorcaPhase-field modeling of pitting and mechanically-assisted corrosion of Mg alloys for biomedical applicationsACTA BIOMATERIALIA (IN PRESS)

Kristensen et al. (EJMaS, 2023)

P.K. Kristensen, A. Golahmar, E. Martínez-Pañeda, C.F. NiordsonAccelerated high-cycle phase field fatigue predictionsEUROPEAN JOURNAL OF MECHANICS A/SOLIDS 100, 104991 (2023)

K. Au-Yeung et al. (EwC, 2023)

K. Au-Yeung, A. Quintanas-Corominas, E. Martínez-Pañeda, W. TanHygroscopic phase Field modelling of composite materialsENGINEERING WITH COMPUTERS (IN PRESS)

Lucarini et al. (IJF, 2023)

S. Lucarini, F.P.E. Dunne, E. Martínez-PañedaAn FFT-based crystal plasticity phase-field model for micromechanical fatigue cracking based on the stored energy densityINTERNATIONAL JOURNAL OF FATIGUE 172, 107670 (2023)

Zafra et al. (MSEA, 2023)

A. Zafra, G. Álvarez, G. Benoit, G. Henaff, E. Martínez-Pañeda, C. Rodríguez, J. BelzunceHydrogen-assisted fatigue crack growth: pre-charging vs in-situ testing in gaseous environmentsMATERIALS SCIENCE & ENGINEERING A 871, 144885 (2023)

MATLAB code to predict H uptake using lumped integration

Finite element MATLAB code for electrochemical reactions, using lumped integration for efficiency and robustness, and particularised to the case of hydrogen uptake. Paper: T. Hageman, E. Martínez-Pañeda. Stabilising effects of lumped integration schemes for the simulation of metal-electrolyte reactions. Journal of The Electrochemical Society 170, 021511 (2023)

Hageman & Martinez-Paneda (JES, 2023)

T. Hageman, E. Martínez-PañedaStabilising effects of lumped integration schemes for the simulation of metal-electrolyte reactionsJOURNAL OF THE ELECTROCHEMICAL SOCIETY 170, 021511 (2023)

Quinteros et al. (CMAME, 2023)

L. Quinteros, E. García-Macías, E. Martínez-Pañeda Electromechanical phase-field fracture modelling of piezoresistive CNT-based composites COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING 407, 115941 (2023)

Golahmar et al. (IJF, 2023)

A. Golahmar, C.F. Niordson, E. Martínez-PañedaA phase field model for high-cycle fatigue: total-life analysisINTERNATIONAL JOURNAL OF FATIGUE 170, 107558 (2023)

Lewis et al. (Adv Energy Mat, 2023)

J.A. Lewis, S.E. Sandoval, Y. Liu, D.L. Nelson, S.G. Yoon, R. Wang, Y. Zhao, M. Tian, P. Shevchenko, E. Martínez-Pañeda, M.T. McDowell.Accelerated Short Circuiting in Anode-Free Solid-State Batteries Driven by Local Lithium DepletionADVANCED ENERGY MATERIALS 13, 2204186 (2023)

COMSOL-MATLAB Link to determine H diffusivity from isothermal TDS tests

COMSOL-MATLAB files to fit the output of an isothermal TDS experiment so as to obtain the diffusivity of hydrogen in metals. Paper: A. Zafra, Z. Harris, E. Korec, E. Martínez-Pañeda. On the relative efficacy of electropermeation and isothermal desorption approaches for measuring hydrogen diffusivity. International Journal of Hydrogen Energy 48, 1218-1233 (2023)

García-Merino et al. (AMM)

J.C. García-Merino, C. Calvo-Jurado, E. Martínez-Pañeda, E. García-Macías Multielement polynomial chaos Kriging-based metamodelling for Bayesian inference of non-smooth systems APPLIED MATHEMATICAL MODELLING 116, 510-531 (2023)

ABAQUS UMAT FOR PHASE FIELD FRACTURE WITH A DRUCKER-PRAGER CRITERION

ABAQUS UMAT user subroutine for implementing a generalised version of phase field fracture allowing for any fracture driving force split (including Drucker-Prager) and any choice of crack density function. Paper: Y. Navidtehrani, C. Betegón, E. Martínez-Pañeda. A general framework for decomposing the phase field fracture driving force, particularised to a Drucker-Prager failure surface. Theoretical and […]

COMSOL PHYSICS BUILDER MODULE TO PREDICT HYDROGEN UPTAKE IN METALS

COMSOL Physics builder to predict hydrogen uptake through an electro-chemo-mechanics framework that resolves the HER. Paper: T. Hageman, E. Martínez-Pañeda. An electro-chemo-mechanical framework for predicting hydrogen uptake in metals due to aqueous electrolytes. Corrosion Science 208, 110681 (2022)

BrazVal: A MATLAB APP TO ASSESS THE VALIDITY OF THE BRAZILIAN TEST

MATLAB App that enables assessing the validity of the Brazilian test and provides the material strength from test data. Paper: Y. Navidtehrani, C. Betegón, R.W. Zimmerman, E. Martínez-Pañeda. Griffith-based analysis of crack initiation location in a Brazilian test. International Journal of Rock Mechanics and Mining Sciences 159, 105227 (2022)

Zafra et al. (IJHE, 2022)

A. Zafra, Z. Harris, E. Korec, E. Martínez-Pañeda On the relative efficacy of electropermeation and isothermal desorption approaches for measuring hydrogen diffusivity INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 48, 1218-1233 (2023)

Hageman & Martinez-Paneda (CS, 2022)

T. Hageman, E. Martínez-Pañeda An electro-chemo-mechanical framework for predicting hydrogen uptake in metals due to aqueous electrolytes CORROSION SCIENCE 208, 110681 (2022)

Navidtehrani et al. (IJRMMS, 2022)

Y. Navidtehrani, C. Betegón, R.W. Zimmerman, E. Martínez-Pañeda Griffith-based analysis of crack initiation location in a Brazilian test INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 159, 105227 (2022)

Navidtehrani et al. (TAFMEC, 2022)

Y. Navidtehrani, C. Betegón, E. Martínez-Pañeda A general framework for decomposing the phase field fracture driving force, particularised to a Drucker-Prager failure surface THEORETICAL AND APPLIED FRACTURE MECHANICS 121, 103555 (2022)

Clayton et al. (EFM, 2022)

T. Clayton, R. Duddu, M. Siegert, E. Martínez-Pañeda A stress-based poro-damage phase field model for hydrofracturing of creeping glaciers and ice shelves ENGINEERING FRACTURE MECHANICS 272, 108693 (2022)

Diaz et al. (TAFM, 2022, SLM+phase field)

A. Díaz, J.M. Alegre, I.I. Cuesta, E. Martínez-Pañeda, Z. Zhang Notch fracture predictions using the phase field method for Ti-6Al-4V produced by Selective Laser Melting after different post-processing conditions THEORETICAL AND APPLIED FRACTURE MECHANICS 121, 103510 (2022)

COMSOL MODEL FOR PHASE FIELD FATIGUE IN LI-ION BATTERY MATERIALS

COMSOL implementation of a coupled deformation-diffusion-fracture/fatigue model with application to cracking in Li-Ion battery electrode particles. Paper: W. Ai, B. Wu, E. Martínez-Pañeda. A generalised phase field model for fatigue crack growth in elastic-plastic solids with an efficient monolithic solver. Journal of Power Sources 544, 231805 (2022)

Angel Valverde et al. (IJHE, 2022)

A. Valverde-González, E. Martínez-Pañeda, A. Quintanas-Corominas, J. Reinoso, M. Paggi Computational modelling of hydrogen assisted fracture in polycrystalline materials INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 47 (75), 32235-32251 (2022)

Islas et al. Bioresource Tech 2022

A. Islas, A. Rodríguez Fernández, C. Betegón, E. Martínez-Pañeda, A. Pandal Computational Assessment of Biomass Dust Explosions in the 20L Sphere PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 165, 791-814 (2022)

Zhao et al. (JMPS, 2022)

Y. Zhao, R. Wang, E. Martínez-Pañeda A phase field electro-chemo-mechanical formulation for predicting void evolution at the Li-electrolyte interface in all-solid-state batteries JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 167, 104999 (2022)

Ai et al. (JPS, 2022)

W. Ai, B. Wu, E. Martínez-Pañeda A coupled phase field formulation for modelling fatigue cracking in lithium-ion battery electrode particles JOURNAL OF POWER SOURCES 544, 231805 (2022)

Cui et al. (JMPS, 2022)

C. Cui, R. Ma, E. Martínez-Pañeda A generalised, multi-phase-field theory for dissolution-driven stress corrosion cracking and hydrogen embrittlement JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 166, 104951 (2022)

ABAQUS UELMAT FOR PHASE FIELD FRACTURE

ABAQUS UELMAT subroutine to implement the phase field fracture method in combination with any material model available in ABAQUS. Papers: Z. Khalil, A.Y. Elghazouli, E. Martínez-Pañeda. A generalised phase field model for fatigue crack growth in elastic-plastic solids with an efficient monolithic solver. Computer Methods in Applied Mechanics and Engineering 388, 114286 (2022) M. Simoes, […]

Fernandez-Sousa et al. (IJF, 2022)

R. Fernández-Sousa, C. Betegón, E. Martínez-Pañeda Cohesive zone modelling of hydrogen assisted fatigue crack growth: the role of trapping INTERNATIONAL JOURNAL OF FATIGUE 162, 106935 (2022)

Quinteros et al. (CPB, 2022)

L. Quinteros, E. García-Macías, E. Martínez-Pañeda Micromechanics-based phase field fracture modelling of CNT composites COMPOSITES PART B: ENGINEERING 236, 109788 (2022)

Boyce et al. (JPS, 2022)

A. Boyce, E. Martínez-Pañeda, A. Wade, Y.S. Zhang, J.J. Bailey, T.M.M. Heenan, D.J.L. Brett, P.R. Shearing Cracking predictions of lithium-ion battery electrodes by X-ray computed tomography and modelling JOURNAL OF POWER SOURCES 526, 231119 (2022)

Tan & EMP (CS, 2022)

W. Tan, E. Martínez-Pañeda Phase field fracture predictions of microscopic bridging behaviour of composite materials COMPOSITE STRUCTURES 286, 115242 (2022)

Simoes et al. (FFEMS, 2022)

M. Simoes, C. Braithwaite, A. Makaya, E. Martínez-Pañeda Modelling fatigue crack growth in Shape Memory Alloys FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES 45: 1243-1257 (2022)

Islas et al. (PT, 2022)

A. Islas, A. Rodríguez Fernández, C. Betegón, E. Martínez-Pañeda, A. Pandal CFD simulations of turbulent dust dispersion in the 20 L vessel using OpenFOAM POWDER TECHNOLOGY 397, 117033 (2022)

Zafra et al. (JNGSE, 2022)

A. Zafra, Z. Harris, C. Sun, E. Martínez-Pañeda Comparison of hydrogen diffusivities measured by electrochemical permeation and temperature-programmed desorption in cold-rolled pure iron JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 98, 104365 (2022)

Khalil et al. (CMAME, 2022)

Z. Khalil, A.Y. Elghazouli, E. Martínez-Pañeda A generalised phase field model for fatigue crack growth in elastic-plastic solids with an efficient monolithic solver COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING 388, 114286 (2022)

Shlyannikov et al. (TAFMEC, 2021)

V. Shlyannikov, E. Martínez-Pañeda, A. Tumanov, R. Khamidullin Mode I and Mode II stress intensity factors and dislocation density behaviour in strain gradient plasticity THEORETICAL AND APPLIED FRACTURE MECHANICS 116, 103128 (2021)

Golahmar et al. (IJF, 2021)

A. Golahmar, P.K. Kristensen, C.F. Niordson, E. Martínez-Pañeda A phase field model for hydrogen-assisted fatigue INTERNATIONAL JOURNAL OF FATIGUE 154, 106521 (2022)

Shishvan et al. (EFM, 2021)

S.S. Shishvan, S. Assadpour-asl, E. Martínez-Pañeda A mechanism-based gradient damage model for metallic fracture ENGINEERING FRACTURE MECHANICS 255, 107927 (2021)

Isfandbod & Martinez-Paneda (IJP, 2021)

M. Isfandbod, E. Martínez-Pañeda A mechanism-based multi-trap phase field model for hydrogen assisted fracture INTERNATIONAL JOURNAL OF PLASTICITY 144, 103044 (2021)

Martinez-Paneda (RILEM, 2021)

E. Martínez-Pañeda Progress and opportunities in modelling environmentally assisted cracking RILEM TECHNICAL LETTERS 6, 70-77 (2021) [Gustavo Colonnetti Medal invited paper]

Navidtehrani et al. (APPLES, 2021)

Y. Navidtehrani, C. Betegón, E. Martínez-Pañeda A simple and robust Abaqus implementation of the phase field fracture method APPLICATIONS IN ENGINEERING SCIENCE 6, 100050 (2021)

Navidtehrani et al. (Materials, 2021)

Y. Navidtehrani, C. Betegón, E. Martínez-Pañeda A unified Abaqus implementation of the phase field fracture method using only a user material subroutine MATERIALS 14(8): 1913 (2021)

Kristensen et al. (Royal Society, 2021)

P.K. Kristensen, C.F. Niordson, E. Martínez-Pañeda An assessment of phase field fracture: crack initiation and growth PHILOSOPHICAL TRANSACTONS OF THE ROYAL SOCIETY A 379, 20210021 (2021)

ABAQUS UEL FOR PHASE FIELD MODELLING OF CORROSION

ABAQUS user-element subroutine (UEL) to use the phase field method to predict corrosion, pitting corrosion, the pit-to-crack transition and stress corrosion cracking. Paper: C. Cui, R. Ma, E. Martínez-Pañeda. A phase field formulation for dissolution-driven stress corrosion cracking. Journal of the Mechanics and Physics of Solids 147: 104254 (2021)

ABAQUS UMAT SUBROUTINE TO IMPLEMENT PHASE FIELD FRACTURE

ABAQUS UMAT user subroutine for implementing phase field fracture without the need for user elements by taking advantage of the heat transfer equation. Papers: Y. Navidtehrani, C. Betegón, E. Martínez-Pañeda. A unified Abaqus implementation of the phase field fracture method using only a user material subroutine. Materials 14(8): 1913 (2021). Y. Navidtehrani, C. Betegón, E. […]

Verma et al. (TIJAMT, 2021)

P. Verma, J. Ubaid, A. Schiffer, A. Jain, E. Martínez-Pañeda, S. Kumar Essential work of fracture assessment of acrylonitrile butadiene styrene (ABS) processed via fused filament fabrication additive manufacturing THE INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY 113, 771-784 (2021)

Cui et al. (JMPS, 2021)

C. Cui, R. Ma, E. Martínez-Pañeda A phase field formulation for dissolution-driven stress corrosion cracking JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 147, 104254 (2021)

Kristensen et al. (TAFM, 2021)

P.K. Kristensen, C.F. Niordson, E. Martínez-Pañeda Applications of phase field fracture in modelling hydrogen assisted failures THEORETICAL AND APPLIED FRACTURE MECHANICS 110, 102837 (2020)

Ingrid et al. (JAM, 2021)

I. Holte, A. Srivastava, E. Martínez-Pañeda, C.F. Niordson, K.L. Nielsen Interaction of void spacing and material size effect on inter-void flow localisation JOURNAL OF APPLIED MECHANICS 88(2), 021010 (9 pages) (2021)

Tan and Martinez-Paneda (2021)

W. Tan, E. Martínez-Pañeda Phase field predictions of microscopic fracture and R-curve behaviour of fibre-reinforced composites COMPOSITES SCIENCE AND TECHNOLOGY 202, 108539 (2021)

ABAQUS UMATHT SUBROUTINE FOR COUPLED HYDROGEN DIFFUSION

ABAQUS user material (mechanical UMAT and thermal UMATHT) subroutines for implementing hydrogen diffusion coupled with mechanical deformation, suitable for multiple traps. Paper: R. Fernández-Sousa, C. Betegón, E. Martínez-Pañeda. Analysis of the influence of microstructural traps on hydrogen assisted fatigue. Acta Materialia 199: 253-263 (2020)

Diaz et al. (TAFM, 2020)

A. Díaz, A. Zafra, E. Martínez-Pañeda, J.M. Alegre, J. Belzunce, I.I. Cuesta Simulation of hydrogen permeation through pure iron for trapping and surface phenomena characterisation THEORETICAL AND APPLIED FRACTURE MECHANICS 110, 102818 (2020)

Shlyannikov et al. (IJSS, 2020)

V. Shlyannikov, E. Martínez-Pañeda, A. Tumanov, A. Tartygasheva Crack tip fields and fracture resistance parameters based on strain gradient plasticity INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES 208-209, 63-82 (2021)

Simoes and Martinez-Paneda (2020)

M. Simoes, E. Martínez-Pañeda Phase field modelling of fracture and fatigue in Shape Memory Alloys COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING 373, 113504 (2021)

Askarinejad et al. (EJM/S, 2020)

S. Askarinejad, E. Martínez-Pañeda, I.I. Cuesta, N.A. Fleck Mode II fracture of an MMA adhesive layer: theory versus experiment EUROPEAN JOURNAL OF MECHANICS A / SOLIDS 86, 104133 (2021)

ABAQUS UEL SUBROUTINE FOR DISTORTION GRADIENT PLASTICITY

ABAQUS user-element subroutine (UEL) for Gurtin (2004) distortion gradient plasticity formulation, incorporating the role of the plastic spin as well as dissipative and energetic higher order contributions. Paper: S. Fuentes-Alonso, E. Martínez-Pañeda. Fracture in distortion gradient plasticity. International Journal of Engineering Science 156: 103369 (2020)

Fernández-Sousa et al. (AM, 2020)

R. Fernández-Sousa, C. Betegón, E. Martínez-Pañeda Analysis of the influence of microstructural traps on hydrogen assisted fatigue ACTA MATERIALIA 199, 253-263 (2020)

Fuentes-Alonso, Martinez-Paneda

S. Fuentes-Alonso, E. Martínez-Pañeda Fracture in distortion gradient plasticity INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE 156, 103369 (2020)

Kristensen et al. (JMPS 2020)

P.K. Kristensen, C.F. Niordson, E. Martínez-Pañeda A phase field model for elastic-gradient-plastic solids undergoing hydrogen embrittlement JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 143, 104093 (2020)

ABAQUS UMAT FOR POWER LAW HARDENING PLASTICITY

ABAQUS user-material subroutine (UMAT) with a plane strain/3D implementation of von Mises plasticity with isotropic power law hardening. Includes documentation. Paper: E. Martínez-Pañeda, S. Fuentes-Alonso, C. Betegón. Gradient-enhanced statistical analysis of cleavage fracture. European Journal of Mechanics – A/Solids 77: 103785 (2019)

Saeimi Sadigh et al. IJAA 2020

M.A. Saeimi Sadigh, B. Paygozar, L.F.M. da Silva, E. Martínez-Pañeda Creep behaviour and tensile response of adhesively bonded polyethylene joints: single-lap and double-strap INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES 102, 102666 (2020)

Diaz et al, IJHE 2020

A. Díaz, I.I. Cuesta, E. Martínez-Pañeda, J.M. Alegre Influence of charging conditions on simulated temperature-programmed desorption for hydrogen in metals INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 45: 23704-23720 (2020)

Garcia-Guzman, Reinoso, Valverde, Martinez-Paneda, Tavara

L. García-Guzmán, J. Reinoso, A. Valverde, E. Martínez-Pañeda, L. Távara Numerical study of interface cracking in composite structures using a novel geometrically nonlinear Linear Elastic Brittle Interface Model: mixed-mode fracture conditions and application to structured interfaces COMPOSITE STRUCTURES 248, 112495 (2020)

Martinez-Paneda, Diaz, Wright, Turnbull

E. Martínez-Pañeda, A. Díaz, L. Wright, A. Turnbull Generalised boundary conditions for hydrogen transport at crack tips CORROSION SCIENCE, 173: 108698 (2020)

Hirshikesh, Martinez-Paneda, Natarajan

Hirshikesh, E. Martínez-Pañeda, S. Natarajan Adaptive phase field modelling of crack propagation in orthotropic functionally graded materials DEFENCE TECHNOLOGY 17, 185-195 (2021)

ABAQUS UEL FOR PHASE FIELD FATIGUE + QUASI-NEWTON

ABAQUS user-element subroutine (UEL) with phase field fatigue (and fracture). Includes an input file for using Quasi-Newton to run in a robust monolithic manner and a document with detailed instructions. Paper: P.K. Kristensen, E. Martínez-Pañeda. Phase field fracture modelling using quasi-Newton methods and a new adaptive step scheme. Theoretical and Applied Fracture Mechanics 107: 102446 (2020)

Martinez-Paneda, Kristensen

P.K. Kristensen, E. Martínez-Pañeda Phase field fracture modelling using quasi-Newton methods and a new adaptive step scheme THEORETICAL AND APPLIED FRACTURE MECHANICS, 107: 102446 (2020)

Diaz, Cuesta, Martinez-Paneda, Alegre

A. Díaz, I.I. Cuesta, E. Martínez-Pañeda, J.M. Alegre Analysis of hydrogen permeation tests considering two different modelling approaches for grain boundary trapping in iron INTERNATIONAL JOURNAL OF FRACTURE, 223: 17-35 (2020)

Martinez-Paneda, Harris, Fuentes-Alonso, Scully, Burns

E. Martínez-Pañeda, Z. Harris, S. Fuentes-Alonso, J.R. Scully, J.T. Burns On the suitability of slow strain rate tensile testing for assessing hydrogen embrittlement susceptibility CORROSION SCIENCE, 163: 108291 (2020)

Martinez-Paneda, Cuesta, Fleck

E. Martínez-Pañeda, I.I. Cuesta, N.A. Fleck Mode II fracture of an elastic-plastic sandwich layer JOURNAL OF APPLIED MECHANICS, 87(3): 031001 (11 pages) (2020)

E. Martínez-Pañeda, N.A. Fleck (EJMAS)

E. Martínez-Pañeda, N.A. Fleck Mode I crack tip fields: strain gradient plasticity theory versus J2 flow theory EUROPEAN JOURNAL OF MECHANICS A / SOLIDS, 75: 381-388 (2019)

E. Martínez-Pañeda

E. Martínez-Pañeda On the finite element implementation of functionally graded materials MATERIALS, 12(2): 287 (2019)

PHASE FIELD FRACTURE IMPLEMENTATION IN FENICS

FEniCS Python script with a staggered implementation of the phase field fracture method, suitable for 2D and 3D case studies. Includes a document with detailed instructions. Paper: Hirshikesh, S. Natarajan, R. K. Annabattula, E. Martínez-Pañeda. Phase field modelling of crack propagation in functionally graded materials. Composites Part B: Engineering 169: 239-248 (2019)

ABAQUS UEL SUBROUTINE FOR STRAIN GRADIENT PLASTICITY

ABAQUS user-element subroutine (UEL) for Gudmundson (2004) higher order strain gradient plasticity formulation, including both energetic and dissipative length scales. Paper: E. Martínez-Pañeda, V.S. Deshpande, C.F. Niordson, N.A. Fleck. The role of plastic strain gradients in the crack growth resistance of metals. Journal of the Mechanics and Physics of Solids, 126: 136-150 (2019)

ABAQUS UEL SUBROUTINE FOR PHASE FIELD FRACTURE AND HYDROGEN DIFFUSION

ABAQUS user-element subroutine (UEL) for the coupled deformation – hydrogen transport – phase field fracture scheme presented in the associated paper. Paper: E. Martínez-Pañeda, A. Golahmar, C.F. Niordson. A phase field formulation for hydrogen assisted cracking. Computer Methods in Applied Mechanics and Engineering, 342: 742-761 (2018)

E. Martínez-Pañeda, N.A. Fleck

E. Martínez-Pañeda, N.A. Fleck Crack growth resistance in metallic alloys: the role of isotropic versus kinematic hardening JOURNAL OF APPLIED MECHANICS, 85: 111002 (6 pages) (2018)

ABAQUS UEL SUBROUTINE FOR PHASE FIELD FRACTURE

ABAQUS user-element subroutine (UEL) with a robust phase field formulation for fracture. Several integration schemes are available, as detailed in the accompanying documentation. Paper: E. Martínez-Pañeda, A. Golahmar, C.F. Niordson. A phase field formulation for hydrogen assisted cracking. Computer Methods in Applied Mechanics and Engineering, 342: 742-761 (2018)

CONTROL ALGORITHM FOR CONVERGENCE PROBLEMS IN CRACK PROPAGATION STUDIES

ABAQUS input files with a control algorithm to overcome convergence problems in cohesive zone modelling of crack propagation. The code is largely inspired by the work by Segurado and Llorca (2004) on particle fracture in composites. Paper: E. Martínez-Pañeda, S. del Busto, C. Betegón. Non-local plasticity effects on notch fracture mechanics. Theoretical and Applied Fracture Mechanics, 92: […]

MATLAB SCRIPT FOR HYDROGEN ASSISTED CRACKING PREDICTIONS

Matlab script to predict the variation with the applied potential of the cracking threshold and the stage II crack growth rate. The model builds on Gerberich’s decohesion dislocation-based model, strain gradient plasticity and advanced electrochemistry. See details in the associated paper. Paper: E. Martínez-Pañeda, C.F. Niordson, R.P. Gangloff. Strain gradient plasticity-based modeling of hydrogen environment assisted […]

E. Martínez-Pañeda, S. Natarajan, S. Bordas

E. Martínez-Pañeda, S. Natarajan, S. Bordas Gradient plasticity crack tip characterization by means of the extended finite element method COMPUTATIONAL MECHANICS, 59: 831-842 (2017)

ABAQUS2MATLAB: A SUITABLE TOOL FOR FINITE ELEMENT POST-PROCESSING

A toolbox to connect Abaqus and Matlab, enabling the usage of the statistical analysis, image processing, integrated graph-plotting and mathematical optimization capabilities of Matlab to post-process the outcome of advanced finite element calculations. See www.abaqus2matlab.com Paper: G. Papazafeiropoulos, M. Muñiz-Calvente, E. Martínez-Pañeda. Abaqus2Matlab: a suitable tool for finite element post-processing. Advances in Engineering Software, 105: 9-16 […]

E. Martínez-Pañeda, C.F. Niordson, L. Bardella

E. Martínez-Pañeda, C.F. Niordson, L. Bardella A finite element framework for distortion gradient plasticity with applications to bending of thin foils INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 96: 288-299 (2016)

E. Martínez-Pañeda and C. Betegón

E. Martínez-Pañeda, C. Betegón Modeling damage and fracture within strain-gradient plasticity INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 59: 208-215 (2015)

E. Martínez-Pañeda and R. Gallego

E. Martínez-Pañeda, R. Gallego Numerical analysis of quasi-static fracture in functionally graded materials INTERNATIONAL JOURNAL OF MECHANICS AND MATERIALS IN DESIGN, 11: 405-424 (2015)

ABAQUS USDFLD SUBROUTINE FOR FUNCTIONALLY GRADED ELEMENTS

ABAQUS USDFLD Subroutine for the implementation of a continuous variation of the material elastic properties between integration points. Paper: E. Martínez-Pañeda. On the finite element implementation of functionally graded materials. Materials, 12(2): 287 (2019)

NON-LINEAR X-FEM CODE FOR MSG PLASTICITY

Non-linear eXtendend Finite Element code developed in MATLAB including the following material models: linear elasticity, von Mises plasticity and conventional mechanism-based strain gradient (CMSG) plasticity. Particularly appealing to capture the singularity intrinsic to MSG plasticity. Paper: E. Martínez-Pañeda, S. Natarajan, S. Bordas. Gradient plasticity crack tip characterization by means of the extended finite element method. […]

FORTRAN CODE FOR DISTORTION GRADIENT PLASTICITY

Finite Element implementation of Gurtin (2004) Distortion Gradient Plasticity (DGP) theory by following and extending the Minimum Principles established by Fleck and Willis (2009). Code developed entirely in Fortran. Paper: E. Martínez-Pañeda, C.F. Niordson, L. Bardella. A finite element framework for distortion gradient plasticity with applications to bending of thin foils. International Journal of Solids and […]

ABAQUS UEL SUBROUTINE FOR COHESIVE ELEMENTS

ABAQUS user-element subroutine (UEL) with a cohesive zone formulation. Includes the dependence of the cohesive strength on the total hydrogen concentration and the effect of cyclic loading. Paper: S. del Busto, C. Betegón, E. Martínez-Pañeda. A cohesive zone framework for environmentally assisted fatigue. Engineering Fracture Mechanics, 185: 210-226 (2017)

ABAQUS UMAT SUBROUTINE FOR CMSG PLASTICITY

ABAQUS User Material (UMAT) subroutine with the constitutive formulation of the conventional mechanism-based strain gradient (CMSG) plasticity theory. Paper: E. Martínez-Pañeda and C. Betegón. Modeling damage and fracture within strain-gradient plasticity. International Journal of Solids and Structures, 59: 208-215 (2015)

MICROMECHANICAL MODELLING OF ROCK FRACTURE (RF496/2018)

Role: Co-IPFunding: Royal Commission for the 1851 Exhibition. 1851 Research Fellowships. £141k. 2018-2021 Understanding the micromechanisms governing rock fracture through experimental and theoretical analysis. Development of physically-sound models to reduce energy consumption in mining.

NEW STEELS TO HINDER HYDROGEN EMBRITTLEMENT (SV-18-GIJON-1-21)

Role: Co-PIFunding:  IUTA – University Institute of Industrial Technology of Asturias. Arcelor-Mittal. 2018 Assessment of the role of “beneficial” microstructural traps in delaying and hindering fracture and fatigue. Optimization of the design of hydrogen-resistant steels.

MICROMECHANICS OF HYDROGEN ASSISTED CRACKING (UNOV-13-PF)

Role: Co-PIFunding: University of Oviedo. Pre-doctoral fellowship programme. 64k€. 2013-2017 Development of a new class of constitutive models, based on the micromechanics of plastic deformation and fracture, to predict hydrogen embrittlement in high strength steels.

RELIABLE ASSESSMENT IN AGRESSIVE ENVIRONMENTS

Role: Co-PIFunding:  Danish Hydrocarbon Research and Technology Centre (TOTAL, Shell, Chevron, and Nordsøfonden). 290k€. 2019-2022 Development of efficient and reliable models for predicting hydrogen assisted fatigue and fracture. Extending the success of Virtual Testing to the energy industry.

© 2023 by Emilio Martínez Pañeda
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