Results 81 to 90 of about 5,061 (225)

Application of homogeneous potentials for the modeling of the Bauschinger effects in ultra low carbon steel [PDF]

, 2011
In this work, an approach is proposed for the description of the plastic behavior of materials subjected to multiple or continuous strain path changes. In particular, although it is not formulated with a kinematic hardening rule, it provides a reasonable
Barlat Frederic Gerard, Jin-Jin Ha,a Jin-Woo Lee,a Toshihiko Kuwabara,b Myoung-Gyu Lee,a and Frédéric Barlat   +1 more
core   +1 more source

Low‐Cycle Fatigue Performance of Directed Energy Deposited and Conventionally Manufactured Hybrid Gas Tungsten Arc‐Welded Duplex Stainless Steel Joints

Advanced Engineering Materials, Volume 26, Issue 23, December 2024.
The present work reveals novel results on the mircrostructure evolution and in particular the structural integrity of gas tungsten arc‐welded joints of directed energy deposition arc and as‐rolled standard duplex stainless steels compared to counterparts of the nonwelded base material as well as similar weldments of as‐rolled sheets.
Thomas Wegener, Robert Prowaznik, Thomas Niendorf, Johannes Günther   +3 more
wiley   +1 more source

Effect of friction deformation on the structure and properties of a metastable austenitic chromium-nickel steel [PDF]

, 2013
The effect of surface friction deformation on the phase composition, structure, and strength properties of a ribbon produced from a chromium-nickel steel with metastable austenite is studied.
Baraz, V. R., Fedorenko, O. N.
core   +1 more source

Uniaxial material model with softening for simulating the cyclic behavior of steel tubes in concrete‐filled steel tube beam‐columns

Earthquake Engineering &Structural Dynamics, Volume 53, Issue 13, Page 4032-4053, 25 October 2024.
Abstract This paper presents a new uniaxial constitutive material formulation with softening for simulating the inelastic behavior of steel rectangular tubes in concrete‐filled steel tube (CFST) members. The primary behavioral characteristics of the steel tube in CFST members are isolated and pronounced through a carefully designed experimental ...
Shiye Wang, Wei Wang, Dimitrios G. Lignos   +2 more
wiley   +1 more source

Rotation capacity of I‐shaped beams collapsed with lateral‐torsional buckling under reversed axial forces

Japan Architectural Review, 2019
I‐shaped beams installed in a braced structure are subjected to reversed axial forces during earthquakes. Previously, we have derived the evaluation index and formulae for beams that collapsed with dominant local buckling.
Atsushi Suzuki, Yoshihiro Kimura, Kazuhiko Kasai   +2 more
doaj   +1 more source

Effects of Damage Evolution on Edge Crack Sensitivity in Dual‐Phase Steels

steel research international, Volume 95, Issue 10, October 2024.
Edge cracking hinders the wide‐spread usage of high‐strength steels, as prediction of this phenomenon requires accurate assessment of local formability. Therefore, both micro‐ and macrostructural evolution should be considered, that is, microstructural and micromechanical features, as well as applied stress states.
Niloufar Habibi, Thorsten Beier, Junhe Lian, Berk Tekkaya, Markus Koenemann, Sebastian Muenstermann   +5 more
wiley   +1 more source

Accelerating the Exploration of High‐Entropy Alloys: Synergistic Effects of Integrating Computational Simulation and Experiments

Small Structures, Volume 5, Issue 10, October 2024.
This review highlights recent progress in computational simulations and experiments exploring nano/micro‐scale structure‐property relationships in high‐entropy alloys. Methods from first‐principles to finite element simulations are discussed, emphasizing their validation and complementarity.
Deyu Jiang, Yuhua Li, Liqiang Wang, Lai‐Chang Zhang   +3 more
wiley   +1 more source

Irreversible evolution of dislocation pile-ups during cyclic microcantilever bending

Materials & Design
In single crystals, plastic deformations are predominantly governed by dislocation movement and interactions. The group of dislocations that creates strain gradients, known as geometrically necessary dislocations (GNDs), also deterministically ...
Dávid Ugi, Kolja Zoller, Kolos Lukács, Zsolt Fogarassy, István Groma, Szilvia Kalácska, Katrin Schulz, Péter Dusán Ispánovity   +7 more
doaj   +1 more source

A novel indicator for kinematic hardening effect quantification in deep drawing simulation [PDF]

, 2019
Deep drawing simulation techniques reduce tool design costs and improve tool performance and reliability. In terms of strain hardening, mixed models capturing the kinematic effect are sometimes more accurate than isotropic models.
Brosius, Alexander, Küsters, Niklas, Lafarge, Rémi   +2 more
core  

Rheology and Shear Band Suppression in Particle and Chain Mixtures

, 2012
Using numerical simulations, we consider an amorphous particle mixture which exhibits shear banding, and find that the addition of even a small fraction of chains strongly enhances the material strength, creating pronounced overshoot features in the ...
Regev, Ido, Reichhardt, Charles
core   +1 more source