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of structural reinforcements because of the degradation of the material properties. In addition, the history of normal stress distributions of concrete under fire can be divided into three phases... in the neutral axis depth and little significant reduction in compressive concrete depth. This is identical to the normal stress contour of concrete, as seen in Figure 15. This is the reason that the ultimate......
) strength criterion and the initial normal stress without considering the inter-slice (or inter-column) forces, the normal and shear stresses on the slip surface are assumed using some dimensionless...-strict method can be used to obtain a reliable slope safety factor. Key words: two-dimensional slope; three-dimensional slope; limit equilibrium analysis; normal stress; shear stress; safety factor 1......
in simplifying the forming process. But, up to now, relative studies are still scarce. During the hydroforming of TWT, the difference in thickness induces various stress states, so the evolution... with dissimilar thickness, the location of weld-seam directly determines the ratio of the thicker tube length to whole TWT length (so called length ratio), which would induces effects on stress and strain......
shear stress and normal stress is nonlinear. AGAR et al [21] utilized the power law to describe this nonlinear relationship of geotechnical materials on the basis of laboratory tests. The power-law (P-L... Eq. (9) and Eq. (11), the expression of normal stress of a micro-unit along the detaching line can be derived by dividing out λ and w.  ......
Article ID: 1003-6326(2005)06-1258-06 Variations of properties across plate thickness for Al alloy 7010 M. Salazar-Guapuriche1, 2, Y. Y. Zhao2, A. Pitman3, A. Greene3 (1. Materials..., UK) Abstract: The variations of electrical conductivity and hardness across the thickness of an Al alloy 7010 plate under the temper condition T7651 were investigated. The electrical conductivity......
ratio on stresses field of HDA/PEO coatings subjected to uniform normal contact load was investigated by finite element method. Results show that the surface tensile stress is mainly affected by the thickness ratio of Al layer when the total thickness of coating is unchanged. With the increase of Al layer thickness, the surface tensile stress rises quickly. When Al2O3 layer thickness increases......
Effect of CaO content on residual stress of CAS glass-ceramic XIE Jun, CHENG Jin-shu, LONG Xin-jiang, YANG Shu-zhen Key Laboratory of Silicate Materials Science and Engineering, Wuhan University... the residual stress in the system. Therefore X-ray diffraction (XRD) ‘sin2ψ’ method was used to calculate the residual stress in samples containing various contents of CaO. The relationship between......
is the thickness of arch ring; l is the roof span; σmax is the maximum normal stress during the bending of the mid span section of the roof. According to the rock strength theory, plastic failure occurs when... shows that when the stope span is 30 m and the roof thickness is 10 m, the roof comprehensive safety factor is 1.12, which indicates the roof is in a stable state. Key words: deep mining; high stress......
system satisfies the following assumptions: 1) There is no normal stress and shear stress at the free surface of soil, and the soil is infinite in the radial direction. The bottom of the fictitious... J. Cent. South Univ. (2020) 27: 3839-3851 DOI: https://doi.org/10.1007/s11771-020-4503-y Torsional dynamic response of tapered pile considering compaction effect and stress diffusion effect GUAN......
to the radius of the shaft theoretically under the ideal elastic-plastic model and the radical thickness of the surface plastic region is zero, which indicates that the shear stress on the cross section... distributed. Under uniaxial tension, from the elastic stage to the yielding stage and before the necking stage, due to the equal transmission law of uniaxial tensile stress, the distribution of normal......