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Category Archives: Code Blog

ABAQUS UEL FOR PHASE FIELD MODELLING OF CORROSION

Posted on by EmilioMtnez

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)   Download code (.zip file)

ABAQUS UMAT SUBROUTINE TO IMPLEMENT PHASE FIELD FRACTURE

Posted on by EmilioMtnez

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. […]

ABAQUS UMATHT SUBROUTINE FOR COUPLED HYDROGEN DIFFUSION

Posted on by EmilioMtnez

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)   Download code (.zip file)

ABAQUS UEL SUBROUTINE FOR DISTORTION GRADIENT PLASTICITY

Posted on by EmilioMtnez

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)   Download code (.zip file)

ABAQUS UMAT FOR POWER LAW HARDENING PLASTICITY

Posted on by EmilioMtnez

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)   Download code (.zip file)

ABAQUS UEL FOR PHASE FIELD FATIGUE + QUASI-NEWTON

Posted on by EmilioMtnez

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 […]

PHASE FIELD FRACTURE IMPLEMENTATION IN FENICS

Posted on by EmilioMtnez

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)   Download code […]

ABAQUS UEL SUBROUTINE FOR STRAIN GRADIENT PLASTICITY

Posted on by EmilioMtnez

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

Posted on by EmilioMtnez

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)   Download code (.zip file)

ABAQUS UEL SUBROUTINE FOR PHASE FIELD FRACTURE

Posted on by EmilioMtnez

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)   Download code (.zip file)