Surrogate modeling of structural seismic response using probabilistic learning on manifolds

K Zhong, JG Navarro, S Govindjee… - … & Structural Dynamics, 2023 - Wiley Online Library
Nonlinear response history analysis (NLRHA) is generally considered to be a reliable and
robust method to assess the seismic performance of buildings under strong ground motions …

Physics-informed data-driven discovery of constitutive models with application to strain-rate-sensitive soft materials

K Upadhyay, JN Fuhg, N Bouklas… - Computational Mechanics, 2024 - Springer
A novel data-driven constitutive modeling approach is proposed, which combines the
physics-informed nature of modeling based on continuum thermodynamics with the benefits …

Dual order-reduced Gaussian process emulators (DORGP) for quantifying high-dimensional uncertain crack growth using limited and noisy data

C He, X Peng, C Ding - Computer Methods in Applied Mechanics and …, 2023 - Elsevier
This paper proposes a novel data driven scheme, called dual order-reduced Gaussian
Process emulators (DORGP), for efficiently quantifying the high-dimensional uncertain crack …

Fast uncertainty quantification by sparse data learning from multiphysics systems

B Sun, Y Wang, H Feng, E Chung… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Data learning is a burgeoning area; here, we refer to it as a gorgeous blend of scientific
computing and high-dimensional statistics. In this article, we propose a generalized …

Deep learning-based surrogate models for spatial field solution reconstruction and uncertainty quantification in Structural Health Monitoring applications

NE Silionis, T Liangou, KN Anyfantis - Computers & Structures, 2024 - Elsevier
In recent years, increasingly complex computational models are being built to describe
physical systems which has led to increased use of surrogate models to reduce …

Polynomial Chaos Expansions on Principal Geodesic Grassmannian Submanifolds for Surrogate Modeling and Uncertainty Quantification

DG Giovanis, D Loukrezis, IG Kevrekidis… - arXiv preprint arXiv …, 2024 - arxiv.org
In this work we introduce a manifold learning-based surrogate modeling framework for
uncertainty quantification in high-dimensional stochastic systems. Our first goal is to perform …

A finite rotation, small strain 2D elastic head model, with applications in mild traumatic brain injury

Y Wan, W Fang, RW Carlsen, H Kesari - … of the Mechanics and Physics of …, 2023 - Elsevier
Rotational head motions have been shown to play a key role in traumatic brain injury. There
is great interest in developing methods to rapidly predict brain tissue strains and strain rates …

Conditional deep generative models as surrogates for spatial field solution reconstruction with quantified uncertainty in Structural Health Monitoring applications

NE Silionis, T Liangou, KN Anyfantis - arXiv preprint arXiv:2302.08329, 2023 - arxiv.org
In recent years, increasingly complex computational models are being built to describe
physical systems which has led to increased use of surrogate models to reduce …

Development and validation of subject-specific 3D human head models based on a nonlinear visco-hyperelastic constitutive framework

K Upadhyay, A Alshareef… - Journal of the …, 2022 - royalsocietypublishing.org
Computational head models are promising tools for understanding and predicting traumatic
brain injuries. Most available head models are developed using inputs (ie head geometry …

Effects of anatomy and head motion on spatial patterns of deformation in the human brain

JD Escarcega, RJ Okamoto, AA Alshareef… - Annals of biomedical …, 2024 - Springer
Purpose To determine how the biomechanical vulnerability of the human brain is affected by
features of individual anatomy and loading. Methods To identify the features that contribute …