According to this theory, yielding will start at a point when the maximum shear stress at that point reaches one-half of the uniaxial yield strength, Fy. Thus for a biaxial state of stress where σ1 > σ2, the maximum shear stress will be (σ1 –σ2)/2. This theory states that ...
Various theories concerning the elastic limit have been advanced, but none of them can account for the yielding of mild steel. The object of this paper is to propose a new theory. The author considers that the yielding of material is a problem of stability, analogous to the critical point ...
Since flattened steel sheets often show the unexpectedly lower or higher yield strength than leveled sheets, unceasing efforts have been made to accurately predict the yield strength in pipe-forming industries. In the present investigation, the yield strength of line-pipe or casing-pipe steels was ...
It appears that the drop in stress after the first yield is responsible for the localisation of plastic flow, and that this localisation may in turn be responsible for the macroscopic shear associated With the L眉ders deformation. The existence of this shear influences the pattern of the bands ...
MNB Panic - 《Journal of Materials Processing Technology》 被引量: 41发表: 1999年 Strain-rate history and temperature effects on the torsional-shear behavior of a mild steel Previous investigations on the effects of strain-rate and temperature histories on the mechanical behavior of steel are brief...
Yield Strength of Stainless Steel according toASTM A213 Fig.1 Stress – strain diagram 2. Difference in Yield Strength 2.1 Difference in yield strength Table 1 shows the different yield strengths obtained from AISI 4140 alloy steel but different heat treaters. ...
Plate buckling did not lead the shear panels to immediate degradation in their energy dissipation capacity. Post-buckling resistance was found to be a subject that requires further studies for quantifying the performance of shear panels made of low yield stress steel as hysteretic dampers....
Yield Front in the Propagation of Plastic Deformation in Normalized Mild SteelIT is generally accepted that slip occurs in poly-crystalline materials along planes subject to the maximum or principal shear stress, inclined at 45掳 to the principal stress directions. In tensile tests on parallel ...
where τ is the shear stress, related to the yield stress, G and b are the same as in the above example, C_s is the concentration of solute and ε is the strain induced in the lattice due to adding the impurity. 3. Particle/Precipitate Strengthening - Where the presence of a secondar...
Examples are given of elastic cylinders sustaining loads equal to the "fully plastic" pressure and shear stress distributions in the cylinder wall are shown for these and other cases. Maximum and "optimum" pressures and temperatures for mild steel tubes under a variety of types of load and end...