scholarly journals Measurements of Work Hardening, Anisotropy and the Bauschinger Effect in Mild Steel by Off-Axis Torsion Tests.

2000 ◽  
Vol 49 (5) ◽  
pp. 555-560 ◽  
Author(s):  
Takenobu TAKEDA ◽  
Zhongchun CHEN ◽  
Manabu TSUCHIYA
Keyword(s):  
Mild Steel ◽  
Work Hardening ◽  
Bauschinger Effect

The Stress and Deformation in Mild Steel During Axisymmetric Necking

1973 ◽  
Vol 40 (1) ◽  
pp. 271-276 ◽  
Author(s):  
M. A. Kaplan
Keyword(s):  
Mild Steel ◽  
Work Hardening ◽  
Flow Region ◽  
Material Behavior ◽  
Experimental Result ◽  
Radius Of Curvature ◽  
Specific Work ◽  
Flow Equations ◽  
Closed Form Solutions ◽  
Stress And Deformation

Closed-form solutions for the stress and deformation fields near the minimum section of the neck are obtained for a mild steel rod subject to axial extension by tensile loads. The procedure involves the use of an experimental result together with the incompressibility and symmetry conditions to find the deformations independently of the stresses. The stresses are then determined with the Levy-Mises flow equations without the use of a specific work-hardening rule. The solution, because of a simplifying assumption, is not valid throughout the entire plastic flow region. Experimental evidence indicates, however, that the region of validity extends well beyond the fracture region. The results enable the tensile test to be used to provide a complete description of material behavior until fracture. To accomplish this, it is necessary to measure the axial load and the radius and radius of curvature at the minimum section. As an example, the work-hardening characteristics of mild steel are determined under the usual work or strain-hardening hypothesis. The application of the results to ductile metals, other than mild steel, is briefly discussed.

A Law of Work-Hardening

1948 ◽  
Vol 15 (3) ◽  
pp. 265-273
Author(s):  
A. M. Freudenthal ◽  
M. Reiner
Keyword(s):  
Mild Steel ◽  
Work Hardening ◽  
Wire Drawing ◽  
Total Work ◽  
Exponential Functions ◽  
Recoverable Strain ◽  
Annealed State ◽  
Logarithmic Measure ◽  
Work Of Deformation ◽  
Crystalline Metal

Abstract Based on the “blocking” theory of the strength of a poly-crystalline metal, a law of work-hardening is derived and checked experimentally on mild steel deformed by wire-drawing up to a deformation of 4.6 in the logarithmic measure. The law correlates the recoverable strain work with the total work of deformation in a series of exponential functions, the number of which corresponds to the number of sizes of crystal grains present in the annealed state.

A work-hardening model of the lower yield strength of discontinuously yielding alloys: Ni3Al and mild steel

1989 ◽  
Vol 4 (3) ◽  
pp. 470-472 ◽  
Author(s):  
E. M. Schulson
Keyword(s):  
Grain Size ◽  
Yield Strength ◽  
Mild Steel ◽  
Work Hardening ◽  
Lower Yield ◽  
Hardening Model ◽  
Lower Yield Strength ◽  
Work Hardening Model ◽  
Lüders Bands

The lower yield strengths of Ni3Al and mild steel and their respective relationships to (grain size)−0.8 and (grain size)−0.5 are explained in terms of work hardening within Lüders bands.

scholarly journals Relation between Bauschinger Effect and Work-Hardening in Copper Single Crystals

1983 ◽  
Vol 47 (7) ◽  
pp. 555-560 ◽  
Author(s):  
Takao Yakou ◽  
Tadashi Hasegawa ◽  
Masafumi Shimizu ◽  
Seiichi Karashima
Keyword(s):  
Single Crystals ◽  
Work Hardening ◽  
Bauschinger Effect ◽  
Copper Single Crystals

Relation of Experiments to Mathematical Theories of Plasticity

1949 ◽  
Vol 16 (4) ◽  
pp. 349-357
Author(s):  
D. C. Drucker
Keyword(s):  
Plastic Deformation ◽  
Work Hardening ◽  
Bauschinger Effect ◽  
Point Of View ◽  
General Point ◽  
Shearing Stress ◽  
Series Of Experiments ◽  
Thin Walled ◽  
Incremental Strain ◽  
Stress Criteria

Abstract Several classes of mathematical theories of plasticity for work-hardening materials are surveyed and their advantages, disadvantages, and agreement with experiment discussed. Consideration is given to the proper correlation of tests on thin-walled tubes subjected to tension, torsion, and internal pressure in fixed but arbitrary ratio. The continuing debate between octahedral-shearing-stress and maximum-shearing-stress criteria of plastic deformation is re-examined and the more general alternatives are restated. Through an analysis of Osgood’s experimental results, it is made apparent that the more general point of view is required for the best correlation. A series of experiments are outlined which make the distinction between the various criteria of loading or deformation very large instead of just a few per cent as in previous work. In the evaluation of present mathematical theories it is shown that incremental-strain theories avoid obvious drawbacks of the so-called deformation type of theory. The concept of isotropic work hardening, assumed in practically all stress-strain relations, is explored and generalized. Strong limitations indicated by the Bauschinger effect, which cannot appear properly in such theories, are pointed out.

The work-hardening of copper-silica: IV. The Bauschinger effect and plastic relaxation

1974 ◽  
Vol 30 (6) ◽  
pp. 1247-1280 ◽  
Author(s):  
J. D. Atkinson ◽  
L. M. Brown ◽  
W. M. Stobbs
Keyword(s):  
Work Hardening ◽  
Bauschinger Effect ◽  
Plastic Relaxation

Work-hardening of Annealed Mild Steel under Static and Dynamic Conditions

Nature ◽  
1952 ◽  
Vol 170 (4339) ◽  
pp. 1124-1125
Author(s):  
A. W. CROOK
Keyword(s):  
Mild Steel ◽  
Work Hardening ◽  
Dynamic Conditions
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