



Contact Details
T:+44 (0)1223 748523
E:em642@eng.cam.ac.uk





Cambridge University Engineering Department
Trumpington Street, Cambridge, CB2 1PZ, UK
IMPORTANT NOTE: From September 2019 I will be working at Imperial College London as Assistant Professor (UK Lecturer), leading the Mechanics of Infrastructure Materials Lab.
I am searching for a PhD candidate, see details here: Advert
Research Interests
My research work is oriented towards the understanding, modelling and optimization of the mechanical response of engineering materials. See www.empaneda.com
Current position
1851 Research Fellow. Mechanics, Materials and Design Division. Engineering Department. Cambridge University
Junior Research Fellow. Wolfson College Cambridge
Honours and Awards
2019  Keith Miller Prize. UK Forum for Engineering Structural Integrity (FESI)
2018  Marie SklodowskaCurie Individual Fellowship (Standard EF), EU H2020
2018  1851 Research Fellowship (+Brunel Award), Royal Commission for the 1851 Exhibition
2018  Junior Research Fellowship, Wolfson College Cambridge.
2018  Clarin COFUND Fellowship. Marie Curie Actions (EU FP7) [Declined]
2017  Extraordinary Doctoral Prize + Best PhD Thesis in Engineering. University of Oviedo (ranked 1st out of 99 Theses)
2017  Acta Materialia Student Award
2017  Springer PhD Thesis Prize
2016  H.C. Orsted fellowship. Technical University of Denmark  Marie Curie Actions (EU FP7)
2015  Best short oral presentation. 32nd Spanish Conference on Fracture (Zamora, Spain)
2014  Best oral presentation. PhD Solid Mechanics Conference (Copenhagen, Denmark)
2013  University of Oviedo Predoctoral Fellowship (2014  2018)
Publications
28) P.K. Kristensen, E. MartínezPañeda. Phase field fracture modelling using quasiNewton methods and a new adaptive step scheme. Theoretical and Applied Fracture Mechanics (in press)
27) A. Díaz, I.I. Cuesta, E. MartínezPañeda, J.M. Alegre. Analysis of hydrogen permeation tests considering two different modelling approaches for grain boundary trapping in iron. International Journal of Fracture (in press)
26) E. MartínezPañeda, Z. Harris, S. FuentesAlonso, J.R. Scully, J.T. Burns. On the suitability of slow strain rate tensile testing for assessing hydrogen embrittlement susceptibility. Corrosion Science (in press)
25) E. MartínezPañeda, I.I. Cuesta, N.A. Fleck. Mode II fracture of an elasticplastic sandwich layer. Journal of Appplied Mechanics, 87(3), 031001 (2020)
24) I.I. Cuesta, E. MartínezPañeda, A. Díaz, J.M. Alegre. Cold Isostatic Pressing to improve the mechanical performance of additively manufactured metallic components. Materials, 12(15), 2495 (2019)
23) I.I. Cuesta, E. MartínezPañeda, A. Díaz, J.M. Alegre. The Essential Work of Fracture Parameters for 3D printed polymer sheets. Materials and Design, 181, 107968 (2019)
22) E. MartínezPañeda, S. FuentesAlonso, C. Betegón. Gradientenhanced statistical analysis of cleavage fracture. European Journal of Mechanics A/Solids, 77, 103785 (2019)
21) Hirshikesh, S. Natarajan, R. K. Annabattula, E. MartínezPañeda. Phase field modelling of crack propagation in functionally graded materials. Composites Part B: Engineering, 169, pp. 239248 (2019)
20) E. MartínezPañeda, N.A. Fleck. Mode I crack tip fields: strain gradient plasticity theory versus J2 flow theory. European Journal of Mechanics A/Solids, 75, pp. 381388 (2019)
19) E. MartínezPañeda, 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, pp. 136150 (2019)
18) E. MartínezPañeda. On the finite element implementation of functionally graded materials. Materials, 12(2), 287 (2019)
17) K.J. Juul, E. MartínezPañeda, K.L. Nielsen, C.F. Niordson. Steadystate fracture toughness of elasticplastic solids: Isotropic versus kinematic hardening. Engineering Fracture Mechanics, 207, pp. 256268 (2019)
16) I.I. Cuesta, A. Willig, A. Díaz, E. MartínezPañeda, J.M. Alegre. Prenotched dog bone small punch specimens for the estimation of fracture properties. Engineering Failure Analysis, 96, pp. 236240 (2019)
15) E. MartínezPañeda, A. Golahmar, C.F. Niordson. A phase field formulation for hydrogen assisted cracking. Computer Methods in Applied Mechanics and Engineering, 342, pp. 742761 (2018)
14) T.V. Mathew, S. Natarajan, E. MartínezPañeda. Size effects in elasticplastic functionally graded materials. Composite Structures, 204, pp. 4351 (2018)
13) E. MartínezPañeda, 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)
12) E. MartínezPañeda, S. del Busto, C. Betegón. Nonlocal plasticity effects on notch fracture mechanics. Theoretical and Applied Fracture Mechanics, 92, pp. 276287 (2017)
11) S. del Busto, C. Betegón, E. MartínezPañeda. A cohesive zone framework for environmentally assisted fatigue. Engineering Fracture Mechanics, 185, pp. 210226 (2017)
10) E. MartínezPañeda, S. Natarajan, S. Bordas. Gradient plasticity crack tip characterization by means of the extended finite element method. Computational Mechanics, 59, pp. 831842 (2017)
9) G. Papazafeiropoulos, M. MuñizCalvente, E. MartínezPañeda. Abaqus2Matlab: a suitable tool for finite element postprocessing. Advances in Engineering Software, 105, pp. 916 (2017)
8) E. MartínezPañeda, I.I. Cuesta, I. Peñuelas, A. Díaz, J.M. Alegre. Damage modeling in small punch test specimens. Theoretical and Applied Fracture Mechanics, 86A, pp. 5160 (2016)
7) E. MartínezPañeda, C.F. Niordson, R.P. Gangloff. Strain gradient plasticitybased modeling of hydrogen environment assisted cracking. Acta Materialia, 117, pp. 321332 (2016)
6) E. MartínezPañeda, 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, pp. 288299 (2016)
5) E. MartínezPañeda, S. del Busto, C.F. Niordson, C. Betegón. Strain gradient plasticity modeling of hydrogen diffusion to the crack tip. International Journal of Hydrogen Energy, 41, pp. 1026510274 (2016)
4) E. MartínezPañeda, T.E. García, C. Rodríguez. Fracture toughness characterization through notched small punch test specimens. Materials Science and Engineering A, 657, pp. 422430 (2016)
3) E. MartínezPañeda, C.F. Niordson. On fracture in finite strain gradient plasticity. International Journal of Plasticity, 80, pp. 154167 (2016)
2) E. MartínezPañeda, C. Betegón. Modeling damage and fracture within straingradient plasticity. International Journal of Solids and Structures, 59, pp. 208215 (2015)
1) E. MartínezPañeda, R. Gallego. Numerical analysis of quasistatic fracture in functionally graded materials. International Journal of Mechanics and Materials in Design, 11, pp. 405424 (2015)
Codes (If using these codes for research or industrial purposes please remember to cite the associated paper.)
FEniCS Python script for phase field fracture. Download here.
Abaqus UEL subroutine for higher order strain gradient plasticity (Gudmundson, 2004). Download here.
Abaqus UEL subroutine for phase field fracture and hydrogen diffusion. Download here.
Abaqus UEL subroutine for the phase field fracture method. Download here.
Control algorithm for convergence problems in crack propagation studies. Download Abaqus input files here.
Matlab script with the predictive hydrogen assisted cracking model of MartínezPañeda, Niordson and Gangloff. Download here.
Abaqus2Matlab: a toolbox to connect Abaqus and Matlab (see www.abaqus2matlab.com). Download here.
Abaqus USDFLD subroutine to implement functionally graded materials. Download here.
Matlab nonlinear XFEM code for elasticity, von Mises plasticity and mechanismbased strain gradient plasticity. Download here.
Abaqus UEL subroutine for cohesive elements, including cyclic damage. Download here.
Abaqus UMAT subroutine for Mechanismbased Strain Gradient (MSG) plasticity. Download here.

