[HTML][HTML] Counterexample-trained neural network model of rate and temperature dependent hardening with dynamic strain aging

X Li, CC Roth, C Bonatti, D Mohr - International Journal of Plasticity, 2022‏ - Elsevier
Constitutive models dealing with the thermal and visco-plasticity of metals have seen wide
applications in the automotive industry. A basic plasticity and fracture characterization of a …

[HTML][HTML] A unified fracture criterion considering stress state dependent transition of failure mechanisms in bcc steels at–196° C

F Shen, S Münstermann, J Lian - International Journal of Plasticity, 2022‏ - Elsevier
The fracture properties of a high-strength steel with a body-centered cubic (bcc) crystal
structure have been characterized at–196° C by performing tensile tests with different …

Anisotropic plasticity and fracture of alpha titanium sheets from cryogenic to warm temperatures

H Yang, H Li, H Sun, YH Zhang, X Liu, M Zhan… - International Journal of …, 2022‏ - Elsevier
Titanium is promising for manufacturing high-performance components in aerospace,
marine, energy and healthcare. Whether the forming potential of alpha titanium can be …

[HTML][HTML] Neural network based rate-and temperature-dependent Hosford–Coulomb fracture initiation model

X Li, CC Roth, D Mohr - International Journal of Mechanical Sciences, 2023‏ - Elsevier
The accurate description of the strain rate and temperature dependent response of metals is
a perpetual quest in crashworthiness and forming applications. In the present study …

[HTML][HTML] A forming limit framework accounting for various failure mechanisms: Localization, ductile and cleavage fracture

F Shen, Y Sparrer, J Rao, M Könemann… - International Journal of …, 2024‏ - Elsevier
The forming limits and failure properties of three distinct advanced high-strength steels
(AHSS) have been investigated under various stress states in tensile tests with optimized …

[HTML][HTML] On the spatio-temporal characteristics of the Portevin-Le Chatelier effect in aluminium alloy AA5182: an experimental and numerical study

J Xu, OS Hopperstad, B Holmedal, T Berstad… - International Journal of …, 2023‏ - Elsevier
Abstract The Portevin–Le Chatelier (PLC) effect and its spatio-temporal characteristics in the
aluminium alloy AA5182 are studied experimentally and numerically in the current work. An …

[HTML][HTML] Predicting edge fracture in dual-phase steels: significance of anisotropy-induced localization

Z Li, Y Chang, W Liu, J Lian - International Journal of Mechanical Sciences, 2024‏ - Elsevier
While experimental methods for characterizing edge fracture have advanced significantly,
current modeling approaches often neglect factors like anisotropy evolution and localization …

[HTML][HTML] A rate-dependent damage mechanics model for predicting plasticity and ductile fracture behavior of sheet metals at high strain rates

C Zeng, X Fang, N Habibi, S Münstermann… - Engineering Fracture …, 2024‏ - Elsevier
Uniaxial tensile tests were performed on H340 steel sheets at different strain rates (10-4 to
10 3 s-1) and temperatures (–30° C and 280° C). Oscillation-free forces were measured …

Effect of dynamic strain ageing on flow stress and critical strain for jerky flow in Al-Mg alloys

S Samanta, JR Sahoo, S Mishra - International Journal of Plasticity, 2024‏ - Elsevier
A comprehensive approach addressing the flow behavior and the critical strain for the
initiation of serrations in Al-Mg alloys is developed in the present work. The basic premise of …

[HTML][HTML] Cryogenic ductile and cleavage fracture of bcc metallic structures–Influence of anisotropy and stress states

F Shen, S Münstermann, J Lian - Journal of the Mechanics and Physics of …, 2023‏ - Elsevier
The anisotropic cryogenic ductile and cleavage fracture properties of a body-centered cubic
(bcc) steel at− 196° C have been investigated under a broad spectrum of loading conditions …