Reduced and all-at-once approaches for model calibration and discovery in computational solid mechanics

U Römer, S Hartmann, JA Tröger… - Applied …, 2024 - asmedigitalcollection.asme.org
In the framework of solid mechanics, the task of deriving material parameters from
experimental data has recently re-emerged with the progress in full-field measurement …

Simulating progressive intramural damage leading to aortic dissection using DeepONet: an operator–regression neural network

M Yin, E Ban, BV Rego, E Zhang… - Journal of the …, 2022 - royalsocietypublishing.org
Aortic dissection progresses mainly via delamination of the medial layer of the wall.
Notwithstanding the complexity of this process, insight has been gleaned by studying in vitro …

[HTML][HTML] Deterministic and stochastic phase-field modeling of anisotropic brittle fracture

S Nagaraja, U Römer, HG Matthies… - Computer Methods in …, 2023 - Elsevier
We investigate variational phase-field formulations of anisotropic brittle fracture to model
zigzag crack patterns in cubic materials. Our objective is twofold:(i) to analytically derive and …

Parameter identification of a phase-field fracture model using integrated digital image correlation

V Kosin, A Fau, C Jailin, F Hild, T Wick - Computer Methods in Applied …, 2024 - Elsevier
Phase-field fracture (PFF) modeling is a popular approach to model and simulate fracture
processes in solids. Accurate material parameters and boundary conditions are of utmost …

[HTML][HTML] Higher-order sensitivity analyses to understand the role of FE input parameters on the simulation of composites in progressive fracture tests

J Reiner - Composite Structures, 2025 - Elsevier
With the rise of data-driven engineering methods, such as machine learning, a
comprehensive understanding of the underlying data fed into these algorithms is required …

[HTML][HTML] Damage mechanics challenge: Predictions from an adaptive finite element implementation of the stress-based phase-field fracture model

A Gupta, DT Nguyen, R Duddu - Engineering Fracture Mechanics, 2024 - Elsevier
The damage mechanics challenge (DMC) represents a critical step in predicting the damage
evolution and failure in rock-like materials displaying brittle/quasi-brittle characteristics. The …

Space-time mixed system formulation of phase-field fracture optimal control problems

D Khimin, MC Steinbach, T Wick - Journal of Optimization Theory and …, 2023 - Springer
In this work, space-time formulations and Galerkin discretizations for phase-field fracture
optimal control problems are considered. The fracture irreversibility constraint is formulated …

Space-time formulation, discretization, and computational performance studies for phase-field fracture optimal control problems

D Khimin, MC Steinbach, T Wick - Journal of Computational Physics, 2022 - Elsevier
The purpose of this work is the development of space-time discretization schemes for phase-
field optimal control problems. Specifically in the optimal control minimization problem, a …

Probabilistic investigation into brittle fracture of functionally graded materials using phase-field method

R Aravind, K Jayakumar, RK Annabattula - Engineering Fracture …, 2023 - Elsevier
Modelling fracture using numerical techniques based on discrete modelling is complex as it
requires tracking of progressing discontinuities in field parameters. Phase-field method for …

Phase field study on fracture behavior of crushable polymer foam

J Kong, H Han, T Wang, G Huang, Z Zhuang - Engineering Fracture …, 2024 - Elsevier
Polymer foam is a widely used material across various industries for its lightweight and
exceptional energy absorption capability. Nevertheless, its porous structure and compaction …