Results 11 to 20 of about 1,250,898 (288)
Strong Strain Hardening in Nanocrystalline Nickel [PDF]
Physical Review Letters, 2009 Low strain hardening has hitherto been considered an intrinsic behavior for most nanocrystalline (NC) metals, due to their perceived inability to accumulate dislocations. In this Letter, we show strong strain hardening in NC nickel with a grain size of approximately 20 nm under large plastic strains.
X L, Wu, Y T, Zhu, Y G, Wei, Q, Wei
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On strain hardening mechanism in gradient nanostructures [PDF]
International Journal of Plasticity, 2017 AbstractExperiments have shown that a gradient design, in which grain size spans over four orders of magnitude, can make strong nanomaterials ductile. The enhanced ductility is attributed to the considerable strain hardening capability obtained in the gradient metals. A non-uniform deformation on the lateral sample surface is also observed.
Li, Jianjun +3 more
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Modelling of behaviour of metals at high strain rates [PDF]
, 2006 The aim of the work presented in this thesis was to produce the improvement of the existing simulation tools used for the analysis of materials and structures, which are dynamically loaded and subjected to the different levels of temperatures and strain ...
Panov, Vili
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Evaluation of strain hardening parameters
, 2004 The plane-strain compression test for three kinds of materials was carried out in a temperature range between room temperature and 400 degreesC. The sigma-epsilon curves and strain-hardening rate at different temperatures were simulated and a reasonable ...
Ding, Zong-Hai,, Yang, W.,, Huml, Pavel,
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Scalar-based strain gradient plasticity theory to model size-dependent kinematic hardening effects [PDF]
, 2021 A common belief in phenomenological strain gradient plasticity modeling is that including the gradient of scalar variables in the constitutive setting leads to size-dependent isotropic hardening, whereas the gradient of second-order tensors induces size ...
JEBAHI, Mohamed +3 more
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Investigation of advanced strain-path dependent material models for sheet metal forming simulations [PDF]
, 2006 Sheet metal forming processes often involve complex loading sequences. To improve the prediction of some undesirable phenomena, such as springback, physical behavior models should be considered.
BALAN, Tudor +5 more
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Strain Rate Dependence of Hardness for PE and SME TiNi Alloys
Metals, 2020 In this paper, the strain rate dependence of hardening behavior of polycrystalline pseudoelastic (PE) and shape memory effect (SME) TiNi alloy under impact loading was investigated by experiments.
Lingyan Shen, Mengmeng Hui, Yonggui Liu
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Nuclear Engineering and Technology, 2022 The effect of the material hardening model of the canister on a finite element vertical cask drop simulation is investigated for the strain-based acceptance evaluation.
Hune-Tae Kim +5 more
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Ellipticity loss analysis for tangent moduli deduced from a large strain elastic–plastic self-consistent model [PDF]
, 2009 In order to investigate the impact of microstructures and deformation mechanisms on the ductility of materials, the criterion first proposed by Rice is applied to elastic–plastic tangent moduli derived from a large strain micromechanical model combined ...
LORRAIN, Jean-Paul +5 more
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Mechanical Behavior of 316L Stainless Steel after Strain Hardening
MATEC Web of Conferences, 2017 The effects of strain hardening on the mechanical behavior of 316L stainless steel were studied in the paper. The original and different strain hardening materials were compared to investigate the mechanical behavior.
Li Kaishang, Peng Jian, Peng Jian
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