Grain interactions under thermo-mechanical loads investigated with coupled crystal plasticity simulations and high-energy X-ray diffraction microscopy
Nickel (Ni)-based superalloys are used for safety-critical components in the aerospace
industry because of their high strength at elevated temperatures. These materials are …
industry because of their high strength at elevated temperatures. These materials are …
[HTML][HTML] Microstructure-Sensitive Crystal Plasticity Modeling for Austenitic Steel and Nickel-Based Superalloy Under Isothermal Fatigue Loading
M Shahmardani, A Hartmaier - Metallurgical and Materials Transactions A, 2023 - Springer
Intermittent mechanical loads combined with high temperatures appear during the operation
of turbines in jet engines or in power plants, which can lead to high-temperature fatigue or to …
of turbines in jet engines or in power plants, which can lead to high-temperature fatigue or to …
Investigation of damage mechanisms in thermomechanical fatigue of nickel-based single-crystal alloys
J Xu, H Yuan - Engineering Fracture Mechanics, 2024 - Elsevier
Thermomechanical fatigue (TMF) is essential for ensuring the safety and efficiency of
various thermal engineering systems, however, the underlying damage mechanisms remain …
various thermal engineering systems, however, the underlying damage mechanisms remain …
Initializing type-2 residual stresses in crystal plasticity finite element simulations utilizing high-energy diffraction microscopy data
Crystal plasticity finite element models have advanced in recent years by increasing their
fidelity via incorporating physically based deformation mechanisms and more realistic …
fidelity via incorporating physically based deformation mechanisms and more realistic …
Microstructure-informed, predictive crystal plasticity finite element model of fatigue-dwells
Crystal plasticity finite element (CPFE) modelling is an effective tool from which detailed
information on the meso-scale behaviour of crystalline metallic systems can be extracted …
information on the meso-scale behaviour of crystalline metallic systems can be extracted …
Machine learning-enabled identification of micromechanical stress and strain hotspots predicted via dislocation density-based crystal plasticity simulations
The present work uses a full-field crystal plasticity model with a first principles-informed
dislocation density (DD) hardening law to identify the key microstructural features correlated …
dislocation density (DD) hardening law to identify the key microstructural features correlated …
Microstructure-sensitive modeling of polycrystalline IN 100
M Shenoy, Y Tjiptowidjojo, D McDowell - International Journal of Plasticity, 2008 - Elsevier
A rate dependent, microstructure-sensitive crystal plasticity model is formulated for
correlating the mechanical behavior of a polycrystalline Ni-base superalloy IN 100 at 650° …
correlating the mechanical behavior of a polycrystalline Ni-base superalloy IN 100 at 650° …
Comparative assessment of backstress models using high-energy X-ray diffraction microscopy experiments and crystal plasticity finite element simulations
Crystal plasticity (CP) models have been evolving since their inception. Advanced
experimental characterization methods have contributed significantly to assess the …
experimental characterization methods have contributed significantly to assess the …
[HTML][HTML] Thermal cracking: Clarifying the effects of phases, voids and grains through characterisation and crystal plasticity modelling
Thermally-induced cracking typically occurs during the cooling stage of various
manufacturing processes, and is commonly seen in multiphase or the joints of dissimilar …
manufacturing processes, and is commonly seen in multiphase or the joints of dissimilar …
Microstructural modeling in fcc crystalline materials in a unified dislocation-density framework
A unified physically based microstructural representation of fcc crystalline materials, has
been developed such that evolving microstructural behavior at different physical scales can …
been developed such that evolving microstructural behavior at different physical scales can …