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Search Publications by: Dilip K. Banerjee (Fed)

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Displaying 1 - 25 of 40

Modeling of hierarchical solidification microstructures in metal additive manufacturing: Challenges and opportunities

October 31, 2023
Dilip K. Banerjee, Supriyo Ghosh, Julien Zollinger, Miha Zaloznik, Christopher Newman, Raymundo Arroyave
Metal-based additive manufacturing (AM) processes often produce parts with improved properties compared to conventional manufacturing and metal working routes. However, currently, only a few alloys can be reliably additively manufactured as the vast

Does friction contribute to formability improvement using servo press?

January 6, 2023
Dilip K. Banerjee, Kali Prasad, Aishwary Gupta, Hariharan Krishnaswamy, Uday Chakkingal, Myoung-Gyu Lee
Servo press forming machines are advanced forming systems that are capable of imparting interrupted punch motion, resulting in enhanced room temperature formability. The exact mechanism of the formability improvement is not yet established. The

Uncertainties in Swift hardening law parameters and their influence on the flow stress and the hole expansion behavior of dual phase (DP600) steel specimens

January 4, 2023
Dilip K. Banerjee, Kali Prasad, Deepak Kumar, Krishnaswamy Hariharan
Swift hardening law is one of the most widely used phenomenological models to describe flow stress-strain behavior in sheet metal forming simulations. In the present study, a statistical approach was used to investigate the effect of material property

Double Interpolation to Achieve Linear Strain Path for AISI 1008 Steel Cruciform Specimen

September 30, 2022
Jordan Hoffman, Jinjin Ha, Brad Kinsey, Mark Iadicola, Dilip K. Banerjee
The automotive industry relies heavily on sheet metal forming processes for many components. Material data solely from uniaxial testing is insufficient to fully define the material behavior of the complex plastic deformation during numerical simulations of

Plastic Anisotropy Evolution of SS316L and Modeling for Cruciform Specimen

August 20, 2022
Dilip K. Banerjee, Elizabeth Mamros, Sarah Mayer, Mark Iadicola, Brad Kinsey, Jinjin Ha
In this paper, the evolution of the plastic anisotropy of stainless steel 316L samples is investigated under proportional loading paths using a customized cruciform specimen. The determination of a novel cruciform specimen by a design of experiments

Evaluation of Methods for Determining the Yoshida-Uemori Combined Isotropic/Kinematic Hardening Model Parameters from Tension-Compression Tests of Advanced Lightweighting Materials

August 19, 2022
Dilip K. Banerjee, William E. Luecke, Mark Iadicola, Evan Rust
The performance of two methods, termed Manual and Optimization, for determining the values of the constitutive-model parameters for Yoshida-Uemori (Y U) isotropic-kinematic hardening model was evaluated. The Y U parameters were determined for two 6000

Grain boundary sliding and non-constancy strain during stress relaxation of pure Mg

June 10, 2021
Dilip K. Banerjee, Anand Varma, Aditya Gokhale, Jayant Jain, Krishnaswamy Hariharan
Stress relaxation during plastic deformation has been reported to improve ductility of metallic materials. In this study, the stress relaxation behavior in pure magnesium is investigated during interrupted uniaxial tensile tests. During intermittent

Thermal response of a composite floor system to the standard fire exposure

December 1, 2019
Dilip K. Banerjee
This paper discusses the development of a finite element model (FEA) of a full-scale composite floor system and application of this model to predict the heating of steel members when exposed to a standard fire during fire resistance experiments. The model

Insights into Cruciform Sample Design

January 30, 2017
Adam A. Creuziger, Mark A. Iadicola, Timothy J. Foecke, Evan Rust, Dilip K. Banerjee
Four different cruciform sample designs, based on the work of Abu-Farha et al, were studied in this paper. The original design of Abu-Farha was validated at room temperature for a thicker sample, and two modified sample geometries that would permit thinner

FEA parameter verification for strain localization experiments

June 6, 2016
Mark A. Iadicola, Dilip K. Banerjee, Adam A. Creuziger
Multi-axial specimen geometry optimization through finite element analysis requires robust models that incorporate the critical physics of the experiment as well as a sufficiently robust constitutive law. This can be difficult even at low nominal strain