A review of characterization and modelling approaches for sheet metal forming of lightweight metallic materials
Lightweight sheet metals are attractive for aerospace and automotive applications due to
their exceptional properties, such as low density and high strength. Sheet metal forming …
their exceptional properties, such as low density and high strength. Sheet metal forming …
Experimental characterization and crystal plasticity modeling for predicting load reversals in AA6016-T4 and AA7021-T79
The detailed contribution of microstructural-level phenomena, such as dislocation structure
development and annihilation, as well as inter-granular and intra-granular backstress fields …
development and annihilation, as well as inter-granular and intra-granular backstress fields …
Coupling elasto-plastic self-consistent crystal plasticity and implicit finite elements: applications to compression, cyclic tension-compression, and bending to large …
In this work, we describe a finite element (FE) implementation of an elasto-plastic self-
consistent (EPSC) polycrystal plasticity model termed FE-EPSC, which is intended for …
consistent (EPSC) polycrystal plasticity model termed FE-EPSC, which is intended for …
Deep drawing simulations using the finite element method embedding a multi-level crystal plasticity constitutive law: experimental verification and sensitivity analysis
TJ Barrett, M Knezevic - Computer Methods in Applied Mechanics and …, 2019 - Elsevier
This paper presents experimental verification of a multi-level simulation framework aimed at
sheet metal forming analysis. Specifically, deep drawing of a cylindrical cup simulations from …
sheet metal forming analysis. Specifically, deep drawing of a cylindrical cup simulations from …
On the expansion of a circular hole in an orthotropic elastoplastic thin sheet
The expansion of a circular hole in an orthotropic sheet of AA6022-T4 is examined using a
combination of experiments and analysis. This deformation mode is accomplished by …
combination of experiments and analysis. This deformation mode is accomplished by …
Assessing strength of phases in a quadruplex high entropy alloy via high-throughput nanoindentation to clarify origins of strain hardening
J Weiss, E Vasilev, M Knezevic - Materials Characterization, 2024 - Elsevier
This paper describes the main findings from an experimental investigation into local and
overall strength and fracture behavior of a microstructurally flexible, quadruplex, high …
overall strength and fracture behavior of a microstructurally flexible, quadruplex, high …
Latent hardening within the elasto-plastic self-consistent polycrystal homogenization to enable the prediction of anisotropy of AA6022-T4 sheets
M Zecevic, M Knezevic - International Journal of Plasticity, 2018 - Elsevier
Slip system hardening behavior of a given slip system is influenced more by shearing on
another slip system known, as latent hardening, than by shearing on itself, known as self …
another slip system known, as latent hardening, than by shearing on itself, known as self …
Stress superposition in metal forming
AE Tekkaya, P Groche, BL Kinsey, ZG Wang - CIRP Annals, 2023 - Elsevier
Metal forming processes and formed components can be enhanced by stress superposition.
Stress superposition is defined here as adding stresses on an existing (primary) forming …
Stress superposition is defined here as adding stresses on an existing (primary) forming …
An implicit formulation of the elasto-plastic self-consistent polycrystal plasticity model and its implementation in implicit finite elements
M Zecevic, M Knezevic - Mechanics of Materials, 2019 - Elsevier
Elasto-plastic self-consistent (EPSC) polycrystal plasticity theory has been used extensively
in understanding and predicting anisotropic thermo-mechanical response and underlying …
in understanding and predicting anisotropic thermo-mechanical response and underlying …
Field fluctuations viscoplastic self-consistent crystal plasticity: Applications to predicting texture evolution during deformation and recrystallization of cubic …
IA Riyad, M Knezevic - Acta Materialia, 2023 - Elsevier
Recent advances pertaining to modeling of grain fragmentation during deformation and
recrystallization of polycrystalline metals using viscoplastic self-consistent (VPSC) …
recrystallization of polycrystalline metals using viscoplastic self-consistent (VPSC) …