... sequence application fea iso 27509 variation diameter flange bolt tightening tightening method pretension flange tightening adjustment seal element type influence fukuoka pressure vessel utilization dimension ABSTRACT The flange bolt tightening process is an important...

..., conclusions from this study are presented. INTRODUCTION The soil reaction characteristics required for the design of monopiles are usually obtained by 3D FEA. It is important how to determine the appropriate geotechnical parameters for the constitutive laws used in the 3D FEA based on the results...

... unit pressure foundation lateral displacement fea rigid pile upstream oil & gas large-diameter monopile subsea system api api method wind energy offshore wind turbine laterally diameter wind turbine Numerical Analysis of Lateral Behaviour of Large-diameter Monopile in Saturated...

... ABSTRACT The influence of a pipe's internal pressure on the critical strain at rupture and on ductile crack propagation is investigated. Full-scale tensile tests and a finite-element analysis (FEA) were conducted, with and without internal pressure, using full-scale pipes with surface notches...

... and strain capacity in bending (SCB) of line pipes were obtained by conducting a series of finite element analyses (FEA). API X65 and X70 grade line pipes with diameters of 1020, 1220, and 1420 mm, stress ratios of 1.020, 1.030, and 1.040, and pressurized to 7.4 and 9.8 MPa were used for FEA. Wall...

...) (2007). However, an investigation of the applicability for cold formed pipes with rounded stress vs. strain curves is not necessarily apparent from previous researches. formula fea diameter elastic collapse pressure upstream oil & gas external pressure relation thickness ratio strain...

... the strong ground motion (JGA, 2013). The compression capacity of sound pipes have been discussed (Suzuki and Toyoda, 2002; Suzuki, Zhou and Toyoda, 2008) however that of dented pipes have not been investigated (Yablonskikh, Dawson, and Venkatanarayanan, 2007). ground motion dented pipe rcr fea...

... relation dnv formula diameter deformation test result tamano upstream oil & gas reservoir characterization collapse pressure fea pipe line pipe Geometry and Collapse Pressure of HF-ERW Line Pipe Reel-laid in Deepwater Yukinobu Nagata1, Eiji Tsuru2 1Steel Research Laboratory, Nippon Steel...

.... stiffness matrix) applied at mudline or a selected de-coupling point. This method allows for fast simulation; however it only represents the foundation accurately at one load level. Generally, it requires assistance from a more complex modelling tool, like for instance finite element analyses (FEA). Zaaijer...

... the threshold value of plastic failure criterion for ECA Strain-Based design application. crack tip pipe pisarski carlucci procedure prediction hydraulic fracturing crack initiation ctod ligament upstream oil & gas failure criteria mcirdi fea criteria application flaw remote strain...

... Abstract This paper discusses the role played by FEA (Finite Element Analysis) in the development of basic understanding and procedures for the use in association with strain-based fracture assessments of pipelines. The basic fracture mechanics parameters and their assumptions are briefly...

.... To verify the validation of the established material model, simulations were performed for experimental applications, which are dry drop test, and the results of FEA were compared to those of experiment. From the results, it was found that the dynamic response of PUF in dry drop tests such as the reaction...

... strength adjustment method is compared with 3D finite element analyses (FEA) with cracks explicitly modelled in the pipe. The crack driving force (CDF) was determined from both FEA and BS 7910 using different reference stress solutions - the Kastner and the plate solutions. It demonstrates that the End...

..., the critical bending moment is derived. Through the validation of the critical values, the possibility to predict the initiation of the delamination is indicated. critical stress compressive stress fea criterion base slope delamination through-thickness stress stiffened panel unstiffened panel...

... ABSTRACT A methodology is developed to account for the effect of crack face pressure on the reference stress in high pressure, thick walled, flowlines and risers. A detailed finite element analysis (FEA) is conducted over a range of crack depths (a/t) for long flaws (large crack aspect ratios...

... the experimental evaluation of J-R curves using non-standard (e.g. shallow cracked) SE(B) specimens. dodd fracture mechanics fea investigation hydraulic fracturing pl factor pl value crack front crack length displacement evaluation specimen ruggieri nevalainen accuracy jr curve denote...

... structures, which is much smaller than actual large ships. It is noted that these previous studies are very important to validate accuracy and applicability of numerical methods as well as obtain numerical techniques and tips. water entry simulation fea deformation deflection half wet length...

... costly and more readily available in more areas of the world. fea stress concentration uoe pipe offshore pipeline application configuration strength loading condition limit state pipe example result spiral finite element analysis upstream oil & gas offshore application limit...

... with welding heat input and plate thickness were evaluated by using the comprehensive thermo-mechanical FEA. The critical longitudinal welding shrinkage force inducing the buckling distortion of the aluminum GMA butt weldment was identified by using a linear buckling FE analyses with the longitudinal welding...

..., this method has the tendency to overestimate the consolidation settlement, resulting in an unduly conservative estimate. To reduce the conservatism, finite element analysis (FEA) is proposed. Abaqus' two-dimensional (2-D) finite element analysis (FEA) is initially performed to "calibrate" the model...