Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Ali Mirzaee-Sisan"'
Autor:
Ali Mirzaee-Sisan, Nobuyuki Hisamune, Masahiko Hamada, Ajit Bastola, Hidenori Shitamoto, Junkan Wang
Publikováno v:
Engineering Fracture Mechanics. 180:348-365
An experimental and numerical study has been carried out on the strain capacity of girth-welded X80 pipes subject to displacement-controlled conditions. The focus of this research is fracture limit state. This paper contains details of small-scale an
Publikováno v:
Volume 4: Materials Technology.
This paper highlights many unanswered questions relating to the characterisation of residual stresses in weldments and their treatment in engineering critical assessment and fitness for service assessment codes and standards. The need for an overarch
Autor:
Ali Mirzaee-Sisan, Guiyi Wu
Publikováno v:
Volume 4: Materials Technology.
This paper studies some of the recent residual stress measurement data on pipeline girth welds, which are available in the open literature, using a statistical approach. The measurement data points from residual stresses profiles are separated into t
Autor:
Nobuyuki Hisamune, Ajit Bastola, Ali Mirzaee-Sisan, Junkan Wang, Masahiko Hamada, Hidenori Shitamoto
Publikováno v:
Procedia Structural Integrity. 2:1894-1903
Application of high-strength steels such as X80 grade may help reduce cost in offshore pipeline projects through wall thickness optimisation and associated installation costs. To ensure reliability of such application during the pipeline installation
Autor:
Junkan Wang, Ali Mirzaee-Sisan
Publikováno v:
Volume 5B: Pipelines, Risers, and Subsea Systems.
It is commonly understood that residual stresses can have significant effects on structural integrity. The extent of such influence varies and is affected by material properties, manufacturing methods and thermal history. Welded components such as pi
Publikováno v:
Volume 6A: Pipeline and Riser Technology.
A pipeline’s resistance to collapse is governed by geometric imperfections, material properties and residual stresses. The offshore pipeline design code DNV-OS-F101 provides a method for predicting collapse of pipelines with diameter to wall thickn
Publikováno v:
Volume 6B: Materials and Fabrication.
This paper examines the magnitude and location of the maximum residual stress induced in pipes after the process of bending, reverse-bending and straightening. Dimensional analysis is used to establish generalized equations relating the maximum resid
Autor:
Rajil Saraswat, Ali Mirzaee-Sisan
Publikováno v:
Volume 4B: Pipeline and Riser Technology.
Engineering Critical Assessment (ECA) procedures generally use the Failure Assessment Diagram (FAD) concept for integrity assessment of components containing flaws. An FAD assessment is described by Kr and Lr values, where Kr reflects the toughness o
Autor:
Daowu Zhou, Ali Mirzaee-Sisan
Publikováno v:
Volume 3: Pipeline and Riser Technology.
An analytical model for predicting residual stress introduced in a pipe (away from girth weld) by plastic bending is examined. Stresses for a specific case where the pipe is bent, reverse bent and straightened are compared with results from a non-lin
Autor:
Ali Mirzaee-Sisan, Daowu Zhou
Publikováno v:
Volume 4: Pipeline and Riser Technology.
A probabilistic engineering critical assessment of embedded flaws in a pipeline was carried out as a case study using the limit state function based on both finite element analysis and the failure assessment diagram. The response surface model was us