Experimental Research on Uniaxial Tensile Behavior and Cyclic Deformation Behavior of TA17

2019 ◽  
pp. 363-373
Author(s):  
Juan Du ◽  
Xuejiao Shao ◽  
Linyuan Kuang ◽  
Yuechuan Lu ◽  
Minda Yu ◽  
...  
Keyword(s):  
Experimental Research ◽  
Cyclic Deformation ◽  
Deformation Behavior ◽  
Tensile Behavior ◽  
Uniaxial Tensile

scholarly journals Tensile Behavior and Formability of Pre-Painted Steel Sheets

Metals ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 53
Author(s):  
Archimede Forcellese ◽  
Tommaso Mancia ◽  
Michela Simoncini
Keyword(s):  
Deformation Behavior ◽  
Loading Condition ◽  
Steel Sheet ◽  
Tensile Behavior ◽  
Strain Level ◽  
Uniaxial Tensile ◽  
Uniaxial Stretching ◽  
Paint Coating ◽  
Steel Sheets ◽  
Hemispherical Punch

The present work aims at studying the tensile behavior and formability of pre-painted steel sheets. To this purpose, uniaxial tensile and hemispherical punch tests were performed in order to analyze the deformation behavior of pre-painted sheets under uniaxial stretching and biaxial balanced stretching conditions, respectively. Tests were interrupted in order to obtain different strain levels until fracture; at each strain level reached, the occurrence of superficial damages on the paint coating was detected; thinning of the different layers of the pre-painted sheet was also measured. It was observed that the degree of damage on the paint coating depends on the loading condition; in particular, under uniaxial stretching, the paint coating is able to follow the steel sheet during deformation up to the onset of the necking, whilst, under biaxial balanced stretching, coating exhibits superficial damages before fracture of the sheet.

Study on Constitutive Modeling for Large Deformation Behavior of Polyethylene Considering Strain Rate Effect

2013 ◽  
Author(s):  
Sijia Zhong ◽  
Jianfeng Shi ◽  
Jinyang Zheng
Keyword(s):  
Strain Rate ◽  
Large Deformation ◽  
Constitutive Modeling ◽  
Deformation Behavior ◽  
True Strain ◽  
True Stress ◽  
Uniaxial Tensile ◽  
Pipeline System ◽  
Composite Effect ◽  
Time Deformation

Polyethylene (PE) pipes have been applied in transportation of key energy medium such as natural gas in the past decades. The mechanical property of PE is of great importance for better design and safer application of PE pipeline system. The large deformation behavior is a key character of PE, not only for its significant strain rate sensitivity, but also for localized necking process after yielding. In this paper, a new constitutive modeling method was proposed to charaterize the rate-denpendent large deformation behavior of PE, in which the true stress is regarded as a function of true stain and true strain rate alone. Uniaxial tensile tests of PE were conducted under various cross-head speeds, and a digital camera was used to record the real-time deformation of specimens. By separating the composite effect into respective effect of local true strain and strain rate on the local true stress in the necking region, a phenomenological model for describing the rate-dependent deformation behavior under uniaxial tension was ealstablished. Model results were validated and found in good agreement with experimental data.

On the effect of precipitates on the cyclic deformation behavior of an Al–Mg–Si alloy

2017 ◽  
Vol 32 (23) ◽  
pp. 4398-4410 ◽  
Author(s):  
Haichun Jiang ◽  
Stefanie Sandlöbes ◽  
Günter Gottstein ◽  
Sandra Korte-Kerzel
Keyword(s):  
Cyclic Deformation ◽  
Deformation Behavior ◽  
Image Position

Abstract

Cyclic deformation behavior of non-isoaxial copper tricrystals and bicrystals

1999 ◽  
Vol 47 (7) ◽  
pp. 2165-2176 ◽  
Author(s):  
W.P. Jia ◽  
S.X. Li ◽  
Z.G. Wang ◽  
X.W. Li ◽  
G.Y. Li
Keyword(s):  
Cyclic Deformation ◽  
Deformation Behavior

Cyclic deformation behavior in pure Cu with growth-in twins

2005 ◽  
Vol 405 (1-2) ◽  
pp. 239-245 ◽  
Author(s):  
X.L. Guo ◽  
L. Lu ◽  
S.X. Li
Keyword(s):  
Cyclic Deformation ◽  
Deformation Behavior ◽  
Pure Cu

scholarly journals The Effect of Phase Separation on the Mechanical Behavior of the Co–Cr–Cu–Fe–Ni High-Entropy Alloy

Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6523
Author(s):  
Heling Liu ◽  
Chuanxiao Peng ◽  
Xuelian Li ◽  
Shenghai Wang ◽  
Li Wang
Keyword(s):  
Mechanical Properties ◽  
Phase Separation ◽  
Grain Boundaries ◽  
Deformation Behavior ◽  
Grain Boundary Sliding ◽  
Dynamics Simulation ◽  
Uniaxial Tensile ◽  
High Entropy Alloy ◽  
High Entropy ◽  
Critical Resolved Shear Stress

Phase separation phenomena in high-entropy alloys (HEAs) have attracted much attention since their discovery, but little attention has been given to the dynamics of the deformation mechanism of this kind of HEA during uniaxial tension, which limits their widespread and practical utility. In this work, molecular dynamics simulation was used to study the effect of phase separation on the mechanical properties of an HEA under uniaxial tensile loading. Moreover, the associated deformation behavior of the Co–Cr–Cu–Fe–Ni HEA was investigated at the nanoscale. Models with Cu-rich grain boundaries or grains were constructed. The results showed that Cu-rich grain boundaries or grains lowered the strength of the Co–Cr–Cu–Fe–Ni HEA, and Cu-rich grain boundaries significantly reduced ductility. This change of mechanical properties was closely associated with a deformation behavior. Furthermore, the deformation behavior was affected by the critical resolved shear stress of Cu-rich and Cu-depleted regions and the uneven stress distribution caused by phase separation. In addition, dislocation slipping and grain boundary sliding were the main mechanisms of plastic deformation in the Co–Cr–Cu–Fe–Ni HEA.

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