A crystal plasticity model that accounts for grain size effects and slip system interactions on the deformation of austenitic stainless steels

D Agius, A Kareer, A Al Mamun, C Truman… - International Journal of …, 2022 - Elsevier
To ensure a more representative simulation of meso‑scale and macro-scale deformation, it
is important the underlying constitutive relations are advanced to more effectively …

High-cycle and very-high-cycle fatigue lifetime prediction of additively manufactured AlSi10Mg via crystal plasticity finite element method

J Zhang, J Li, S Wu, W Zhang, J Sun, G Qian - International journal of …, 2022 - Elsevier
The effects of defects and building directions in additive manufactured AlSi10Mg on its high-
cycle fatigue and very-high-cycle fatigue performance are studied based on crystal plasticity …

A universal constitutive model for hybrid stress-strain controlled creep-fatigue deformation

T Zhang, X Wang, D Zhou, R Wang, Y Jiang… - International Journal of …, 2022 - Elsevier
On account of stress relaxation, the conventional strain-controlled creep-fatigue interaction
(CCFI) tests make it difficult to obtain the creep-dominated data. To make up for this …

Crystal plasticity simulation of the macroscale and microscale stress–strain relations of additively manufactured AlSi10Mg alloy

XX Zhang, H Andrä - Computational Materials Science, 2021 - Elsevier
Abstract Various Al-Mg-Si components produced via additive manufacturing (AM) have
many potential applications. Especially for those applications requiring high quality and …

Predicting residual stress in a 316L electron beam weld joint incorporating plastic properties derived from a crystal plasticity finite element model

M Mokhtarishirazabad, M McMillan… - International Journal of …, 2023 - Elsevier
Electron beam welding is an advanced joining technique which induces narrow weld region
with minimal heat affected zone and weld-induced distortion. This reduces residual stresses …

[HTML][HTML] OXFORD-UMAT: An efficient and versatile crystal plasticity framework

E Demir, A Martinez-Pechero, C Hardie… - International Journal of …, 2025 - Elsevier
The crystal plasticity-based finite element method is widely used, as it allows complex
microstructures to be simulated and allows direct comparison with experiments. This paper …

[HTML][HTML] Grain size and shape dependent crystal plasticity finite element model and its application to electron beam welded SS316L

E Demir, EW Horton, M Mokhtarishirazabad… - Journal of the …, 2023 - Elsevier
Electron beam welding is an autogenous welding process that leads to microstructural
heterogeneities; crystallographic texture, elongated and larger grain size relative to the …

[HTML][HTML] Calibration and surrogate model-based sensitivity analysis of crystal plasticity finite element models

H Dorward, DM Knowles, E Demir, M Mostafavi… - Materials & Design, 2024 - Elsevier
Crystal plasticity models are powerful tools for predicting the deformation behaviour of
polycrystalline materials accounting for underlying grain morphology and texture. These …

[HTML][HTML] Investigating grain-resolved evolution of lattice strains during plasticity and creep using 3DXRD and crystal plasticity modelling

F Ashraf, RS Ramadhan, A Al Mamun, JAD Ball… - Acta Materialia, 2024 - Elsevier
Microstructure-informed crystal plasticity finite element models have shown great promise in
predicting plastic and creep deformation in polycrystalline materials. These models can …

[HTML][HTML] The effects of internal stresses on the creep deformation investigated using in-situ synchrotron diffraction and crystal plasticity modelling

A Al Mamun, D Agius, CA Simpson, C Reinhard… - International Journal of …, 2021 - Elsevier
In this study we investigated the evolution of meso-scale internal stresses and those effects
on local deformation behaviour during incremental plastic and creep deformation in type …