Search Results for author: Jan N. Fuhg

Found 6 papers, 1 papers with code

Extreme sparsification of physics-augmented neural networks for interpretable model discovery in mechanics

no code implementations5 Oct 2023 Jan N. Fuhg, Reese E. Jones, Nikolaos Bouklas

Data-driven constitutive modeling with neural networks has received increased interest in recent years due to its ability to easily incorporate physical and mechanistic constraints and to overcome the challenging and time-consuming task of formulating phenomenological constitutive laws that can accurately capture the observed material response.

Model Discovery

Stress representations for tensor basis neural networks: alternative formulations to Finger-Rivlin-Ericksen

no code implementations21 Aug 2023 Jan N. Fuhg, Nikolaos Bouklas, Reese E. Jones

Data-driven constitutive modeling frameworks based on neural networks and classical representation theorems have recently gained considerable attention due to their ability to easily incorporate constitutive constraints and their excellent generalization performance.

Modular machine learning-based elastoplasticity: generalization in the context of limited data

no code implementations15 Oct 2022 Jan N. Fuhg, Craig M. Hamel, Kyle Johnson, Reese Jones, Nikolaos Bouklas

The development of accurate constitutive models for materials that undergo path-dependent processes continues to be a complex challenge in computational solid mechanics.

The mixed deep energy method for resolving concentration features in finite strain hyperelasticity

no code implementations15 Apr 2021 Jan N. Fuhg, Nikolaos Bouklas

However both DEM and classical PINN formulations struggle to resolve fine features of the stress and displacement fields, for example concentration features in solid mechanics applications.

Numerical Integration

An innovative adaptive kriging approach for efficient binary classification of mechanical problems

1 code implementation2 Jul 2019 Jan N. Fuhg, Amelie Fau

Kriging is an efficient machine-learning tool, which allows to obtain an approximate response of an investigated phenomenon on the whole parametric space.

Binary Classification General Classification +1

Adaptive surrogate models for parametric studies

no code implementations12 May 2019 Jan N. Fuhg

In this Master thesis adaptive sampling techniques are investigated for their use in creating metamodels with the Kriging technique, which interpolates values by a Gaussian process governed by prior covariances.

Binary Classification Contact mechanics

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