[HTML][HTML] Counterexample-trained neural network model of rate and temperature dependent hardening with dynamic strain aging

X Li, CC Roth, C Bonatti, D Mohr - International Journal of Plasticity, 2022 - Elsevier
Constitutive models dealing with the thermal and visco-plasticity of metals have seen wide
applications in the automotive industry. A basic plasticity and fracture characterization of a …

Machine-learning based temperature-and rate-dependent plasticity model: application to analysis of fracture experiments on DP steel

X Li, CC Roth, D Mohr - International Journal of Plasticity, 2019 - Elsevier
Slow, intermediate and high strain rate experiments are carried out on flat smooth and
notched tensile specimens extracted from dual phase steel sheets. A split Hopkinson …

[HTML][HTML] Neural network based rate-and temperature-dependent Hosford–Coulomb fracture initiation model

X Li, CC Roth, D Mohr - International Journal of Mechanical Sciences, 2023 - Elsevier
The accurate description of the strain rate and temperature dependent response of metals is
a perpetual quest in crashworthiness and forming applications. In the present study …

Component-based machine learning paradigm for discovering rate-dependent and pressure-sensitive level-set plasticity models

NN Vlassis, WC Sun - Journal of Applied Mechanics, 2022 - asmedigitalcollection.asme.org
Conventionally, neural network constitutive laws for path-dependent elastoplastic solids are
trained via supervised learning performed on recurrent neural networks, with the time history …

Strain rate and temperature dependent fracture of aluminum alloy 7075: Experiments and neural network modeling

KS Pandya, CC Roth, D Mohr - International Journal of Plasticity, 2020 - Elsevier
Complex structural components made from 7xxx series alloys are usually manufactured
through hot stamping due to their low ductility at room temperature. With the help of a custom …

Deep learning predicts path-dependent plasticity

M Mozaffar, R Bostanabad, W Chen… - Proceedings of the …, 2019 - National Acad Sciences
Plasticity theory aims at describing the yield loci and work hardening of a material under
general deformation states. Most of its complexity arises from the nontrivial dependence of …

An evolving plasticity model considering anisotropy, thermal softening and dynamic strain aging

F Shen, S Münstermann, J Lian - International Journal of Plasticity, 2020 - Elsevier
Comprehensive experimental characterization and numerical prediction have been
performed to investigate the thermal effects on the anisotropic flow behavior of two high …

Thermodynamically consistent neural network plasticity modeling and discovery of evolution laws

KA Meyer, F Ekre - Journal of the Mechanics and Physics of Solids, 2023 - Elsevier
Over the past decade, advancements in computational frameworks and processing power
have made deep neural networks increasingly viable for material modeling. However, purely …

[HTML][HTML] Mechanistically informed artificial neural network model for discovering anisotropic path-dependent plasticity of metals

X Liu, J He, S Huang - Materials & Design, 2023 - Elsevier
The plasticity of metals involves various complicated phenomena that have not been fully
discovered or explained by existing theories. The data-driven method provides a new …

Recurrent neural network-based multiaxial plasticity model with regularization for physics-informed constraints

L Borkowski, C Sorini, A Chattopadhyay - Computers & Structures, 2022 - Elsevier
A recurrent neural network (RNN) based model is developed as a surrogate to predict
nonlinear plastic response under multiaxial loading. The RNN-based model is trained and …