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, it is significant to effectively predict the occurrence of fracture during the forming process of high-strength aluminum alloy sheets. Forming limit diagram (FLD) can visually show the maximum deformation degree... fracture within a large stress triaxiality range (-1/3≤η≤2/3). The analysis expression of Lou-Huh criterion is (1) where C1, C2......
March 2020 Abstract: The corrosion behaviours of naturally aged and artificially aged AA2024 aluminium alloys in 0.5 mol/dm3 NaCl solution in the presence of environmentally friendly corrosion... analyzed in detail [1-11]. AA2024 (Al-Cu-Mg) aluminium alloy is commonly used after precipitation hardening at 190 °C (artificially aged alloy). This alloy is also commercially used after natural aging......
Introduction Radial forging is an open-die forging process which usually uses two pairs instead of one pair of opposing dies, and its incremental deformation results from a large number of short-stroke.... In addition, the effect of temperature rise of the material caused by the larger rotation rate is not obvious, and the deformation resistance of the material on the right side is slightly large, so......
GmbH Germany, part of Springer Nature 2020 Abstract: This paper investigates the main scale analysis of the aerodynamic noise in the foremost bogie area by the large-eddy simulation (LES... into two cavities, each of which contains a large circulating flow and presents multi-peak characteristics in the frequency domain. The far-field noise results suggest that in the speed range of 200-350 km......
of MnO/Mn3O4/SeOx hybrid involves precipitating, aging, calcining and thermal annealing with Se powder under negative pressure (Fig. 1(a)). Firstly, NaOH and Na2CO3 mixed solution was dropwise added into the MnCl2 solution, and a uniform suspension containing Mn(OH)2 and MnCO3 was obtained. After aging, Mn(OH)2 was transformed to MnO(OH)2. Through post-thermal calcination, the Mn2O3 powder was obtained [14......
. The swelling characteristic of black cotton soils can cause serious engineering problems if not being taken care of. Replacement of black cotton soil is typically chosen as the treatment plan, which......
treatment and aging on the microstructure, mechanical properties, and corrosion resistance of a β type Ti–Ta–Hf–Zr alloy [J]. RSC Advances, 2017, 7(20): 12309-12317. DOI: 10.1039/c6ra28464g. [29] MORENO J M C... of this solution was 6.8, adjusting by adding NaOH. In addition, CP-Ti and Ti-6Al-4V alloy were used as control groups in this study. In order to make the samples stable, the open-circuit potential (OCP......
considerable success for large pedestrians in simple scenes. Fusing multi-modal visual or other information can improve the performance of rigid models [6]. However, they ignored the deformation... of Information Science and Engineering, Hunan First Normal University,Changsha 410205, China; 3. Hunan Province Engineering Technology Research Center of Computer Vision and Intelligent Medical Treatment......
-corrector solution approach for efficient discontinuous deformation analysis of jointed rock masses [J]. International Journal for Numerical and Analytical Methods in Geomechanics, 2019, 43(2.... DOI: https://doi.org/10.1007/s11771-020-4455-2. 1 Introduction Crack propagation and discontinuous deformation exists in many problems in the fields of material science and geological engineering......
reconstituted one, such as stiffer stress-strain relationship, large-sized porous structure. From this perspective, many soil behaviors can be interpreted by a more reliable mechanism. For example, yielding... are recommended. For example, Eq. (1) proposed by ZIENKIEWICZ and PANDE [40] is employed as the smooth approximation of the Mohr-Coulomb hexagonal deviatoric section. Certainly, such treatment is acceptable......