Longitudinal Stress Thin Walled Pressure Vessel:When the vessel has closed ends the internal pressure acts on them to develop a force along the axis of the cylinder. This is known as the axial or longitudinal stress and is usually less than the hoop stress....
This is determined using the Von Mises equivalent stress formula which is shown in Eq. (1.9): (1.9)σe=σl2+σh2−σlσh+3τc2 where σl, longitudinal stress; σh, hoop stress; τc, tangential shear stress (from material flowing through the pipe). Failure by fracture in cylindrical...
Empty CellHoop StressLongitudinal StressEquivalent Stress Oil and gas pipelines, liquid hydrocarbon piping 0.72 0.80 0.90 Risers on nonproduction platforms 0.60 0.80 0.90 Gas piping, gas risers on production platforms 0.50 0.80 0.90 Source: Originally from ASME B31.4 and B31.8. kT = temperature der...
In contrast to hoop stress, there is also longitudinal stress (axial stress) in such structures, which acts along the length of the cylinder or sphere. The calculation for longitudinal stress is different from that of hoop stress. Thin-walled structures are commonly found in applications like pre...
The distribution of hoop siress calculated and simulated by Finite Element Method and theoretical calculation in this paper, when the hydrostatic pressure was carried out on the line pipe of 桅 762mmx31.8 mm API SPEC 5L[1] X70 longitudinal seams submerged arc welding(LSAW). The results of ...
stress of the surrounding rock of geological stress field in different circumstances, programme is developed to compute the corresponding tangential stress of the surrounding rock of several underground plants, for instance, Ertan project of Sichuan according to different directions of longitudinal axle. ...
Figure 5 shows the longitudinal cross-sectional stress distribution of steel bars at 90° bending angle under different support shaft diameters. Steel bar bending springback is the effect of elastoplastic deformation, as shown in the figure; with the increase in the diameter of the support shaft, ...