Showing papers in "International Journal of Pressure Vessels and Piping in 2002"

TL;DR: In this paper, a general analysis of one-dimensional steady-state thermal stresses in a hollow thick cylinder made of functionally graded material is developed, where the temperature distribution is assumed to be a function of radius, with general thermal and mechanical boundary conditions along the inside and outside surfaces.

TL;DR: In this article, a study on the probabilistic methodology for the estimation of the remaining life of pressurized pipelines containing active corrosion defects is presented, which is carried out using several already published failure pressure models.

TL;DR: In this paper, a mathematical model was proposed to predict the effects of important butt weld geometry parameters (such as weld toe radius, weld bead flank angle, preparation angle, and plate thickness), and residual stresses on the fatigue crack initiation (FCI) life of butt-welded joints.

TL;DR: In this article, the effects of thickness and delamination on the fracture toughness and stable crack growth behavior of high-toughness pipeline steels were investigated experimentally by use of compact tension specimens with thicknesses of 3-15mm cut from a 17-mm-thick wall pipe.

TL;DR: In this paper, the dynamics of the weld profile geometry (i.e., the bead width and reinforcement height) are modeled experimentally with respect to the process conditions (weld speed and wire feed).

TL;DR: In this article, a detailed finite element (FE) limit analysis for plane strain pipes with extended inner axial cracks, axi-symmetric (inner) circumferential cracks and axial through-wall cracks is presented.

TL;DR: In this article, a numerical study using the finite element method has been carried out to investigate the response of composite shells with cutouts subjected to internal pressure and axial compression and the CAE package ABAQUS has been employed for the analysis.

TL;DR: In this paper, the fracture behavior of a hot-rolled bi-material plate consisting of a substrate (low carbon ferritic-pearlitic steel) and a clad layer (austenitic stainless steel), has been investigated.

TL;DR: In this article, three key problems concerning the control of the multi-point forming (MPF) process are discussed and relevant numerical approaches are presented in detail The determination of the three-dimensional surfaces of multi point dies is based on the numerical representation of the objective shape, which describes a given geometry of sheet part by 18 dof high-precision triangular finite elements.

TL;DR: In this paper, a cyclic strain energy density was used to evaluate the fatigue damage of a high pressure tube steel, and a mean stress relaxation depended on the magnitude of the applied strain amplitude.

TL;DR: In this paper, a new method for predicting the failure pressure of corrosion defects in pipelines has been developed, based on the weighted depth difference (WDD) method, which accounts for the defect geometry and any interaction with adjacent defects.

TL;DR: In this paper, the authors examined existing test data, theories and procedures, frequently used for evaluating the maximum pressure in closed ended cylindrical vessels, and examined their application in the development of a solid rocket motor case, pressure vessel for a launch vehicle or a missile system.

TL;DR: In this paper, collapse tests of two cylindrical and four bowed out mild steel shells are provided, and it appears that barrelling does not necessarily increase the sensitivity of buckling pressure to shape deviations from perfect geometry.

TL;DR: In this article, a bibliographical review of finite element methods applied for the analysis of pressure vessel structures/components and piping from the theoretical as well as practical points of view is given.

TL;DR: In this article, fracture experiments have been carried out on throughwall circumferentially cracked 8-in. diameter pipes under four point bending load and three point bend bar (TPBB) specimens machined from the same pipe.

TL;DR: In this article, the authors presented experimental and finite element results from 13 tests on axially (at the crown) and circumferentially ( at the intrados) cracked carbon steel pipe bends under in-plane bending loads.

TL;DR: In this paper, the authors present the problem of stress concentration in a cylindrical pressure vessel with ellipsoidal heads subject to internal pressure and analyze the effect of these values on the stress concentration ratio.

TL;DR: In this paper, the authors address the calculation of residual stresses due to autofrettage and the resulting increase of the endurance limit, and the necessary stress intensity factors due to loading and residual stresses are calculated using the weight function method.

TL;DR: In this article, the steady-state reference rupture stresses were obtained for a range of 90° pipe bends, subjected to internal pressure only, using simplified 2D axisymmetric finite element (FE) models.

TL;DR: In this article, the results from three methods of measuring the fracture toughness are presented and discussed: Charpy V-Notch testing, small punch testing and full size K Ic testing.

TL;DR: In this paper, the J-integral and the crack opening area are the main parameters required for a leak-before-break evaluation of a piping system, and solutions for the stress intensity factor and limit load for a pipe with a circumferential through-wall crack subjected to axial and bending loads are reviewed and compared.

TL;DR: In this paper, the results of Russian VVER-440 and VVER1000 surveillance programs and results of research programs on reactor pressure vessel (RPV) steel irradiation in surveillance channels of power reactors are discussed.

TL;DR: In this article, inelastic stress analysis for a vessel-nozzle intersection with intermediate diameter ratio (d/D=0.526) under increasing internal pressure loading from experimental and non-linear finite element methods is performed.

TL;DR: In this paper, a probabilistic model was used to predict the temperature dependence of cleavage fracture toughness for 2Cr-Ni-Mo-V pressure vessel steel in the initial and highly embrittled state.

TL;DR: In this paper, the steady-state reference rupture stresses for a wide geometry range of internally pressurised pipes, under a closed-end condition, were investigated in order to investigate the applicability of the approach in life prediction.

TL;DR: In this paper, the authors proposed engineering estimation equations of elastic-plastic J and crack opening displacement (COD) for axial through-wall cracked pipes under internal pressure.

TL;DR: In this paper, the effect of accelerated thermal cycling on a joint between modified 9Cr-1Mo steel (Grade 91) and Alloy 800 welded with Inconel 1 82 and 182 filler material is discussed.

TL;DR: In this paper, an engineering method to estimate the creep C ∗ integral for realistic creep laws to assess defective components operating at elevated temperatures is proposed, which is mainly for the steady-state C ∆ -integral, but a suggestion is also given for estimating the transient C ( t )-integral.

TL;DR: In this paper, a model has been produced to describe irradiation damage in high nickel submerged arc welds (1.6% Ni, 1.5% Mn, 0.5%, and 0.6%) irradiated in materials test reactors.

TL;DR: In this article, low cycle fatigue tests were performed on 4-in diameter carbon steel pipes with flaws, taking into account the minimum wall thickness required for design pressure and circumferentially part-through cracks based on the acceptance standards in the ASME Code Section XI.