Investigation of damage mechanisms related to microstructural features of ferrite-cementite steels via experiments and multiscale simulations

H Wang, F Wang, D Qian, F Chen, Z Dong… - International Journal of …, 2023 - Elsevier
Spheroidized ferrite-cementite steel (SFC) is susceptible to micro-defects owing to the
mismatched deformation between the ferrite and cementite during cold forming, which …

[HTML][HTML] From CP-FFT to CP-RNN: Recurrent neural network surrogate model of crystal plasticity

C Bonatti, B Berisha, D Mohr - International Journal of Plasticity, 2022 - Elsevier
Abstract Recurrent Neural Network (RNN) based surrogate models constitute an emerging
class of reduced order models of history-dependent material behavior. Recently, the authors …

Microstructure-and damage-nucleation-based crystal plasticity finite element modeling for the nucleation of multi-type voids during plastic deformation of Al alloys

PF Gao, MY Fei, M Zhan, MW Fu - International Journal of Plasticity, 2023 - Elsevier
During deformation of aluminum (Al) alloys, there are three kinds of voids being formed by
distinct mechanisms, ie, matrix-cracking voids (MCVs), particle-cracking voids (PCVs), and …

Void nucleation and growth from heterophases and the exploitation of new toughening mechanisms in metals

Y Guo, C Paramatmuni, E Avcu - Crystals, 2023 - mdpi.com
Heterophases, such as precipitates, inclusions, second phases, or reinforcement particles,
often drive void nucleation due to local incompatibilities in stresses/strains. This results in a …

A probabilistic mean-field and microstructure based finite element modeling for predicting mechanical and ductile fracture behavior of the cast aluminum alloy

W Jeong, C Kim, CA Lee, HJ Bong, SH Hong… - International Journal of …, 2022 - Elsevier
A multiscale finite element simulation approach based on the probabilistic mean-field
method is proposed to predict the strength and ductile fracture of the cast aluminum (Al) …

A ductile fracture model incorporating stress state effect

W Dou, Z Xu, Y Han, F Huang - International Journal of Mechanical …, 2023 - Elsevier
To understand comprehensively the relationship between material ductility and stress state,
the new shear, shear-compression, and shear-tension specimens were specially designed …

Role of grain boundary crystallography on void growth in FCC metals

PG Christodoulou, M Zecevic, RA Lebensohn… - International Journal of …, 2023 - Elsevier
The growth of an isolated spherical void at and near a grain boundary or a triple junction is
studied by means of full-field crystal plasticity simulations with explicit representation of the …

Role of crystallographic orientation on intragranular void growth in polycrystalline FCC materials

PG Christodoulou, S Dancette, RA Lebensohn… - International Journal of …, 2021 - Elsevier
In this work, we study the effect of crystallographic orientation and applied triaxiality on the
growth of intragranular voids. Two 3D full-field micromechanics methods are used, the …

Role of low-level void swelling on plasticity and failure in a 33 dpa neutron-irradiated 304 stainless steel

HT Vo, D Frazer, AA Kohnert, S Teysseyre… - International Journal of …, 2023 - Elsevier
Radiation damage introduces a wide range of defects in structural materials depending on
the irradiation conditions. Irradiation-induced loops are known to lead to dislocation …

[HTML][HTML] Requirements for and challenges in developing improved creep ductility-based constitutive models for tempered martensitic CSEF steels

R Ragab, J Parker, M Li, T Liu, A Morris… - journal of materials …, 2022 - Elsevier
Creep fracture behaviour of tempered martensitic steels is generally governed by the
process of cavity nucleation, growth and coalescence into microcracks. Therefore, creep …