The evaluation of stress intensity factors in internally pressurized cylinders, with both surface and sub-surface flaws, is examined. The method of analysis is based on the equivalent linear representation of the circumferential stress distribution in accordance with ASME rules, the non-linear hoop ...
Errors are estimated at less than 1% overall, and less than 1/2% at short crack lengths.K for a multiply-cracked, partially autofrettaged, internally pressurized thick cylinder may be obtained by appropriate superposition of the solution for the pressurized, non-autofrettaged cylinder and the ...
11.3a. The von Mises cylinder is suitable to represent materials which are pressure-inde-pendent, as e.g. structural steel. The circular deviatoric plane demonstrates a constant shear capacity. The Drucker–Prager cone mirrors a hydrostatic pressure-dependent material, such as concrete. However, ...
The purpose of this paper is to present stress-intensity factors for a wide range of semi-elliptical surface cracks on the inside of pressurized cylinders. The ratio of crack depth to crack length ranged from 0.2 to 1; the ratio of crack depth to wall thickness ranged from 0.2 to 0.8; an...
Internally pressurized cylinder illustrates biaxial stress states where correct determination of max requires taking 3 into account. Note that (1) for an element on the inside, 3 is negative and numerically equal to the internal fluid pressure and (2) for thin-walled cylinders 2 1/2....
Altenbach H., Gorash Y., Naumenko K.: Steady-state creep of a pressurized thick cylinder in both the linear and the power law ranges. Acta Mech. 195, 263–274 (2008) Article MATH Google Scholar Becker A.A., Hyde T.H., Sun W., Andersson P.: Benchmarks for finite element analys...
2.The device for the low stress triaxial test according to claim 1, wherein the sample is made from a sampling cylinder in a cylindrical shape, the sampling cylinder comprises an inner shell and an outer shell, a surface roughness of each of the inner shell and the outer shell is less ...
Further, certain commonly used container structures including polystyrene materials, polycarbonate materials, polyethylene terephthalate materials tend to be extremely sensitive to stress cracking promoters particularly when pressurized or used at high altitudes and can during manufacture, use or storage quickly...
For pressurized containers it is shown that stress distributions depend on Poisson's ratio which should be taken into account in a stability analysis since these structures are mostly vulnerable to the local loss of geometric stability. Introduction Bolts, rivets and location pins are some of the ...