Results 31 to 40 of about 213,665 (198)

Model for the hardness-depth relationships of ion-irradiated nanocrystalline metals

Journal of Materials Research and Technology, 2023
In this work, a mechanistic model is proposed for ion-irradiated nanocrystalline (NC) metals to characterize the evolution of hardness as a function of the indentation depth at room temperature and under quasi-static loading condition. At the grain level,
Kai Liu, ShangBin Gao, ZhongHua Wang, Xiazi Xiao, Chao Jiang   +4 more
doaj   +1 more source

The hardening effect of deformation twinning based on visco-plastic self consistent model and a multi-scale grain refinement prediction model during machining of titanium alloy

Journal of Materials Research and Technology, 2023
Deformation twins act as one of the deformation characteristics of hexagonal close packed (HCP) materials and occur during machining of Ti–6Al–4V alloy.
Qingqing Wang, Chaoyang Niu, Zhanqiang Liu, Yanqing Wang, Yanhai Cheng, Yongkang Cui   +5 more
doaj   +1 more source

Material modelling and springback analysis for multi-stage rotary draw bending of thin-walled tube using homogeneous anisotropic hardening model [PDF]

The aim of this paper is to compare several hardening models and to show their relevance for the prediction of springback and deformation of an asymmetric aluminium alloy tube in multi-stage rotary draw bending process. A three-dimensional finite-element
Barlat, F, Gracio, J, Liao, J, Xue, X
core   +1 more source

Stress integration of the Drucker-Prager material model with kinematic hardening [PDF]

Theoretical and Applied Mechanics, 2015
This paper presents a method for implicit stress integration of the Drucker-Prager material model with kinematic hardening. The stress integration of the material model is conducted using the incremental plasticity method, while the kinematic ...
Rakić Dragan, Živković Miroslav
doaj   +1 more source

Work hardening in metastable high entropy alloys: a modified five-parameter model

Journal of Materials Research and Technology, 2022
Excellent work hardening in transformation-induced plasticity (TRIP)-enabled metastable high entropy alloys (HEAs) owe to persistent austenite (γ) to martensite (ε) phase transformation; non-basal slip activity and deformation twinning in the transformed
Ravi Sankar Haridas, Priyanka Agrawal, Surekha Yadav, Priyanshi Agrawal, Anurag Gumaste, Rajiv S. Mishra   +5 more
doaj   +1 more source

A viscoplasticity model with an enhanced control of the yield surface distortion

, 2012
A new model of metal viscoplasticity, which takes combined isotropic, kinematic, and distortional hardening into account, is presented. The basic modeling assumptions are illustrated using a new two-dimensional rheological analogy.
Ihlemann, J., Shutov, A. V.
core   +1 more source

Re-Hardening of Hadron Transverse Mass Spectra in Relativistic Heavy-Ion Collisions [PDF]

, 2001
We analyze the spectra of pions and protons in heavy-ion collisions at relativistic energies from 2 A GeV to 65+65 A GeV by using a jet-implemented hadron-string cascade model.
A. Ohnishi, B A Li, B B Back, F Videvœk, G Q Li, H Sorge, J Rafelski, L Ahle, M. Isse, N Herrmann, N Otuka, N S Amelin, N Xu, N. Otuka, NA49 Collaboration: Appelshäueser, P K Sahu, P. K. Sahu, Quark Matter, R Hagedorn, S A Bass, S A Bass, T Matsui, T Sjöstrand, W Cassing, X N Wang, X N Wang, Y Nara, Y Nara, Y Pang, Y Takahashi, Y. Nara   +30 more
core   +3 more sources

Descriptions of reversed yielding in bending [PDF]

, 2007
Existence of Bauschinger effect in bending-unbending of copper beams has been shown from experiment. In modelling of the Bauschinger effect, it is shown that a significant second plastic penetration can occur with the release of the moment required for ...
Bauschinger J., D W A Rees, Marciniak Z., Nadai A., Rees D. W. A.   +4 more
core   +1 more source

Assessment of the Numerical Behavior of Remolded and Undisturbed Clayey Soil

Civil and Environmental Engineering
The simulation of soil behavior using finite element analysis depends mainly on the input parameters considered in analysis, moreover, in the case of clayey soil, most of the experimental studies for small models are performed on remolded samples because
Waheed Mohanned, Asmael Noor
doaj   +1 more source

Cyclic plastic behavior and springback prediction of QP980 high strength steel in roll forming

Cailiao gongcheng
In the roll forming， the sheet metal will experience multiple bending processes. The nonlinear hardening behavior and cyclic plastic behavior of high strength steel during multiple bending deformation， such as Bauschinger effect and cyclic hardening ...
HAN Fei, MU Sichao, LI Shu
doaj   +1 more source