The following correction should be made to the article entitled “Milling-Related Brittle Fracture Mechanisms of a SiCp/Al Composite” by H. J. Zhang, J. G. Li, and J. G. Du, Vol. 52, No. 1, 81–89, 2020, https://doi.org/10.1007/s11223-020-00152-3.

Limiting cyclic stress diagrams of welded joints of a low-carbon and low-alloy steels of different strength levels are analyzed under conditions that they contain the same level of steady residual stresses. For tests of butt-welded joints as an example, a procedure for calculating the endurance limit at different values of limiting steady residual stresses is proposed. Limiting cyclic stress diagrams

A system for recording the contraction of cylindrical specimens under static compression loading was developed based on the original cantilever-type extensometer and the L-Card E-440 analog-todigital converter with Power Graph software for data acquisition and pre-processing. 26H2MF and St12T steels’ stress–strain diagrams in compression at elevated temperatures were constructed. The influence of temperature

The assemblies of a ship-to-shore portal crane after 33 years of service were studied on the possible loss of the initial brittle fracture resistance level by rolled steel sheets. Strain gauge measurements were used to predict the level of operating stresses. The latter and a decrease in the Charpy impact strength were established to be distinctly related. Transverse specimens are shown to generally

Structural features, mechanical properties, and stressed state of welded joints of the TiAl system intermetallic compound (Nb, Cr, Zr) after electron-beam welding and subsequent electron-beam local heat treatment are determined. It was shown that stresses generated immediately after welding contributed to the appearance of cold cracks in the weld. Residual stresses in welded joints were determined

The paper considers one of the topical problems of the targeted control of the properties of the material of products in the zones under critical loads, which lead to their failure or loss of performance. The processes for the diffusion saturation of the surface layers of parts (chemical heat treatment) are an effective method for the strengthening treatment of parts of complex geometric shape. The

Leveling essentially aims to improve the flatness of steel plates but also causes a significant reduction in the magnitude of residual stresses and their equalization. In this study, the results of residual stress measurements by use of a Stresscan 500C device (based on the Barkhausen magnetoelastic noise method) for steel sheets made of S235 and S355 steel without leveling and after roller leveling

The methods for low-cycle fatigue testing and cyclic crack growth testing of 10GN2MFA steel at 20 and 270°C are described. Based on test results, fatigue crack growth rate curves are plotted and the characteristics of low-cycle plastic deformation and fracture are found. A difference in the kinetics of low-cycle plastic deformation is shown – the cyclic softening at 20°C and hardening at 270°C – which

This paper describes the experimental and theoretical investigation on ultimate strength of cold-formed steel built-up square stub columns under axial compression. In total, fifteen stub columns were tested by varying the cross-sectional dimensions of specimens. Local buckling, distortion, and interaction of these buckling modes were observed. The strengths obtained from the experiment are compared

The authors present the results of the numerical experiments on the determination of the effect of shrouding coupling parameters in the rotor blades on their forced vibrations using an assembly of two blades as an example. The task is solved in the variation of the inclination angle of the shrouded flanges as the parameter of their contact interaction and amplitude of the kinematic excitation of vibrations

In this article, a constant-stress partially accelerated life test model of high reliability products and materials with type-II censored data from the linear failure rate distribution is considered. Two different methods of estimation likelihood and Bayesian are used to estimate the unknown parameters of the model. The maximum likelihood estimates of the model parameters are obtained using the Newton–Raphson

The paper provides results of the study of correctness of the mathematical model that includes the influence of stresses on irradiation-induced swelling of metal in the problems of elastic-plastic deformation mechanics. The present-day approaches to modeling irradiation-induced swelling, which take into account a damaging dose, irradiation temperature, and the effect of the stress state on the swelling

The structure nonuniformity a VT23 titanium alloy after shock and vibration loading is established to lead to larger plasticity of the material and changes in fracture mechanisms. Localization of deformation processes influences the sizes and quantitative distribution of tear dimples on the fracture surface. The approach was advanced to detect tear dimples on the fracture surface of the alloy, in particular

In this study, residual stresses in hot-extruded Al-6061 rods with different cross-sectional reduction were investigated using the contour method. The contour method was used to provide a twodimensional map of residual stresses. The residual stresses were evaluated along the radius of the rods with different cross-sectional reduction before and after annealing heat treatment, and the uncertainty of

The spatial axisymmetric creep problem for complex-shaped bodies of rotation from functionally graded materials is considered. For the variational problem statement, the Lagrangian-form functional is defined for kinematically possible displacement rates. For the main unknown creep parameters, namely displacements, stresses, and strains, the Cauchy problem in time scale is formulated for the spatial

A MEPR Calculator program is described that provides automatic computations of the longitudinal elastic modulus and Poisson’s ratio of structural materials in accordance with operating test standards. The deformation diagram of the material with a clear-cut linear section is examined. The program permits of valuating the agreement between calculated and experimental data with the coefficients of determination

The effect of contact conditions and the gap between the metal and composite layers on the stress-strain state and strength of a two-layer metal composite cylinder under internal explosive loading in air is numerically studied. It is accepted that in the absence of a gap between the metal and composite layers, there is no interference. The problem was considered on the basis of the general equations

The aims of this finite elemental stress analysis (FEA) study were to evaluate the effects of loading direction, crown coverage, and adjacent teeth on stress distribution in premolar tooth models restored using fiber-post restoration. Three 3D premolar tooth FEA models were created as follows: Model 1: sound tooth; Model 2: tooth-model including root filling, fiber-post and composite resin restoration;

The paper presents the experimental results of investigations using different types of glass by the Rockwell indenter scratching of the specimen surface till its edge chipping (S+EF method). The peculiar features of the materials’ fracture are determined as a result of fractography analysis of the empirical data. It is proposed to classify chips under two different groups. The first group is characterized

To the article “Effect of Porosity Parameters on the Strength of Gas Turbine Compressor Blades Made of Titanium Alloys,” by D. V. Pavlenko, Vol. 51, No. 6, pp. 887–899, November, 2019.