Stress–strain curves of metallic materials and post‐necking strain hardening characterization: A review

S Tu, X Ren, J He, Z Zhang - Fatigue & Fracture of Engineering …, 2020 - Wiley Online Library
For metallic materials, standard uniaxial tensile tests with round bar specimens or flat
specimens only provide accurate equivalent stress–strain curve before diffuse necking …

Testing methodologies for the calibration of advanced plasticity models for sheet metals: A review

M Rossi, A Lattanzi, L Morichelli, JMP Martins… - Strain, 2022 - Wiley Online Library
Numerical simulations have become essential in engineering and manufacturing processes
involving plasticity. The reliability and effectiveness of the simulations depend strongly on …

[HTML][HTML] Determination of true stress-strain curve of type 304 and 316 stainless steels using a typical tensile test and finite element analysis

H Do Kweon, JW Kim, O Song, D Oh - Nuclear Engineering and …, 2021 - Elsevier
Knowing a material's true stress-strain curve is essential for performing a nonlinear finite
element analysis to solve an elastoplastic problem. This study presents a simple …

[HTML][HTML] Using surround DIC to extract true stress–strain curve from uniaxial tension experiments

B Jordan, V Grolleau, D Mohr - International Journal of Solids and …, 2023 - Elsevier
The exact stress–strain curve can be directly identified from uniaxial tension experiments up
to the point of onset of diffuse necking. To gain insight into the post-necking hardening …

Post-fire mechanical response of ultra-high strength (Grade 1200) steel under high temperatures: Linking thermal stability and microstructure

F Azhari, A Heidarpour, XL Zhao, CR Hutchinson - Thin-Walled Structures, 2017 - Elsevier
Recently, ultra-high strength steel (UHSS) tubes with nominal yield strengths of up to 1200
MPa have attracted attention for applications in engineering fields. While many studies have …

Post-Necking full-field FEMU identification of anisotropic plasticity from flat notched tension experiments

E Sakaridis, CC Roth, B Jordan, D Mohr - International Journal of Solids …, 2024 - Elsevier
This work introduces a finite element model updating (FEMU) identification scheme to
determine the material parameters of an anisotropic metal plasticity model. Surround digital …

[HTML][HTML] An improved modelling framework for strength and work hardening of precipitate strengthened Al–Mg–Si alloys

F Lu, JK Sunde, CD Marioara, R Holmestad… - Materials Science and …, 2022 - Elsevier
A modelling framework for the strength and work hardening contributions in age hardened
Al–Mg–Si alloys is presented. The modelling work is based on transmission electron …

Identification of post-necking tensile stress–strain behavior of steel sheet: An experimental investigation using digital image correlation technique

SK Paul, S Roy, S Sivaprasad, HN Bar… - Journal of Materials …, 2018 - Springer
The stress–strain behavior of sheet metal is commonly evaluated by tensile test. However,
the true stress–strain curve is restricted up to uniform elongation of the material. Usually …

Large strain flow curve identification for sheet metal

S Coppieters, H Traphöner, F Stiebert, T Balan… - Journal of Materials …, 2022 - Elsevier
The large strain flow curve is an essential input for the calibration of a myriad of plasticity
models required for accurately simulating sheet metal forming processes and the …

DIC-based approach to predict post necking behavior for AA6061, AA7075 and their friction stir welded joints

H Suthar, A Bhattacharya, SK Paul - Mechanics of Materials, 2022 - Elsevier
In a tensile test, the precise measurement of the area at the necking section is crucial for
predicting the post-necking true stress-strain behavior. In the conventional theoretical …