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Jan Valdman


Last seen: 8 days ago Active since 2010

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Associate professor of applied mathematics https://sites.google.com/site/janvaldman/ Professional Interests: FEM, nonlinear computational mechanics, a posteriori error estimates, MATLAB vectorizations

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Submitted


Equilibria of economical models with cost of change
Evaluations of Cournot-Nash and Stackelber-Cournot-Nash equilibria for models with several firms using Gauss method

9 months ago | 2 downloads |

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Evaluation of intrinsic rotations
We provide an alternative to the function rotm2eul from Robotics System Toolbox and comparisons.

11 months ago | 2 downloads |

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HADAMARD’S INEQUALITY IN THE MEAN
Evaluation of the HADAMARD’S INEQUALITY IN THE MEAN in 2 space-dimensions.

1 year ago | 2 downloads |

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Enlarge figure axes by a given factor
Given a figure with (eg. tight) axes, this simple code automatically recalculates and enlarges axes them by a prescribed factor....

1 year ago | 1 download |

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Constitutive model of shape memory alloys
An unconstrained minimization of FEM discretized energies.

1 year ago | 8 downloads |

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Semismooth* Newton method for contact friction problems
Finite element solution of a contact problem with a Tresca friction by the semismooth* Newton method.

3 years ago | 6 downloads |

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Simulation of von Kármán viscoelastic plates
A quasistatic evolution of viscoelastic von Kármán plates.

4 years ago | 3 downloads |

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Implementation of C1 FEM
Detailed implementation of Bogner-Fox-Schmit elements.

5 years ago | 4 downloads |

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Hyper elasticity with a non-penetration condition
A 2D FEM solver based on an energy minimisation formulated in C^1 deformation including a new non-penetration term.

5 years ago | 2 downloads |

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Element-based Solvers
2D Poisson's solver using only local FEM matrices without the global matrix assembly.

5 years ago | 2 downloads |

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Evolutionary model for shape memory alloys
Software for a new article - more details later

6 years ago | 2 downloads |

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Fast elastoplastic FEM assembly
Vectorized assembly of FEM matrices and including complete calculations of elastoplasticity benchmarks.

6 years ago | 9 downloads |

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Fast FEM assembly: nodal elements
Vectorized assembly of FEM matrices.

6 years ago | 9 downloads |

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Fast FEM assembly: edge elements
Vectorized assembly of FEM matrices.

6 years ago | 11 downloads |

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Computation of the Friedrichs and Poincare constants in 2D/3D
Computation of Friedrichs and Poincare constants in 2D/3D from generalized eigenvalue problems.

6 years ago | 1 download |

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Error identities for variational problems with obstacles
Calculaton of Error identities for variational problems with obstacles

7 years ago | 2 downloads |

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Continuum undergoing combined elasto-plasto-damage transformation.
Time-dependent evolution of the continuum undergoing combined elasto-plasto-damage transformation.

7 years ago | 3 downloads |

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Lagrange polynomial and its subpolynomials
Construction of the Lagrange interpolation polynomial from its definition.

7 years ago | 1 download |

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Two-phase obstacle problem in 2D and its aposteriori error estimate
Calculation of two-phase obstacle problem in 2D and its a posteriori error estimate

7 years ago | 3 downloads |

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Edges generation
Algorithm generates edges of a conforming 2D/3D triangulation.

8 years ago | 2 downloads |

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Quadrature of the absolute value of a function
Quadrature of the absolute value of a function

8 years ago | 2 downloads |

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Two-phase obstacle problem in 1D and its aposteriori error estimate
Calculation of two-phase obstacle problem and its a posteriori error estimate

8 years ago | 1 download |

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Obstacle problem in 2D and its aposteriori error estimate
An obstacle problem is solved and the error of the solution is estimated

9 years ago | 1 download |

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3D Crouzeix-Raviart mortar finite element method
Implementation of 3D Crouzeix-Raviart mortar finite element

9 years ago | 2 downloads |

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Double porosity model
Finite element solution of the double porosity model and its a posteriori error estimate

9 years ago | 4 downloads |

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Thermo-magnetic solver
Simulation of a mesoscopic model of temperature/external field-driven evolution of magnetization

9 years ago | 1 download |

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Obstacle problem in 1D and its aposteriori error estimate
Contact problem is solved by the Uzawa algorithm and the error of the solution is estimated.

10 years ago | 1 download |

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Rotating symetric elastic ring with a friction boundary condition
Animation of a rotating elastic ring subjected to time dependent periodical boundary conditions.

13 years ago | 1 download |

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Two-yield elastoplasticity solver
Time-dependent 2D elastoplasticity solver for a two-yied model.

14 years ago | 3 downloads |

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