... ABSTRACT A unique criterion to evaluate brittle fracture resistance of cracked components under large scale yielding condition irrespective of loading modes has not been established. The critical Weibull stresses estimated with a original Beremin model based on a linear fracture mechanics...

... assessment for pipeline, the fracture mechanics parameters. i.e., J - integral and crack-tip opening displacement (CTOD), have been used, in which these parameters can characterize crack initiation and instability well. In particular, CTOD is widely used for fracture assessment in strain-based design (SBD...

... ABSTRACT A fracture mechanics based approach is proposed to quantify the influence of corrosion damage on structural integrity. This approach investigates the corrosion surface for geometrical structural change consisting of a general thickness reduction combined with localised stress...

... of this paper. Several models, including multiple barrier models, require specific material property inputs that are not obtainable through traditional testing at larger scale. Hence, micro-mechanical fracture has been applied to quantify these properties. Linear-elastic and elastic-plastic fracture mechanics...

... the fatigue damage of a structure. In view to the limitations of such approach, which have been documented extensively in the literature, a fracture mechanics (FM) based methodology for fatigue life prediction is investigated. The long-term distribution of stresses during the structures design life...

... Abstract There is an ongoing debate in the industry about the requirement for Fatigue Crack Growth calculations (FCG) as part of a holistic fracture mechanics based ECA in preference to traditional S-N damage, which is not yet wholly sorted out. At present the methods are complementary...

... growth rate after an overload is encountered, resulting in a longer fatigue lifetime. This effect can be included into the fatigue damage estimation by using certain Fracture Mechanics approaches. These methods use a cycle-by-cycle approach, which makes the processing of long variable amplitude signals...

... of girth welds in lined pipes become more complex due to the dissimilar nature of these materials. piping design growth resistance curve configuration procedure upstream oil & gas expression thickness fracture mechanics evaluation hydraulic fracturing crack growth resistance curve...

... impact load analysis procedure stress intensity factor obtain dsif crack angle dynamic stress intensity factor crack tip intensity factor magnitude dsif boundary element method fracture mechanics hydraulic fracturing auxiliary field actual field international journal interaction...

... 2014 33rd International Conference on Ocean, Offshore, and Artic Engineering BB 7 G 7AAR ! 4 7 R9Fast Fracture and Crack Arrest, ASTM STP 62 7 CD - 2 % ' # . 99A + ! % G ! ! + Engineering Fracture Mechanics AA"BH ABA...

... polynomial multiple specimen method equation fracture mechanics bs 8571 mechanics pure tension numerical result specimen hydraulic fracturing proceedings calculation analytical solution deep crack geometry function shen specimen method Corrected Stress Intensity Factor for BS 8571 Single...

.... To the authors' knowledge this direct comparison has never been conducted and published by use of independent instrumentation on the same specimens. canmetmaterial fracture mechanics constraint shen hydraulic fracturing international pipeline conference metals & mining cmod tyson...

... Abstract In this paper a practical application of a probabilistic fracture mechanics approach in an existing and damaged offshore structure is presented. Taking basis in the global wave load modelling and FEA models of the structure the stresses and fatigue cycles at existing cracks...

... british standard institution fatigue assessment crack growth stress intensity factor critical crack size stress range propagation crack size fracture mechanics crack propagation platform fatigue crack growth hydraulic fracturing sensitivity formula assessment jacket platform initial crack...

... 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...

... fracture mechanics. The adaptive Simpson quadrature method is applied to calculate the local flexibility due to crack. The proposed flexibility equations were validated by the experimental results, which show that the approach can be used to compute the dynamic characteristics of the pipe with straight...

... most relevant parameters affecting fracture behavior of high toughness steels. To achieve this goal, experimental data basis for analysis of fracture behavior in transition and upper shelf regime has been established by conducting quasi-static fracture mechanics tests and dynamic tests on Battelle Drop...

... 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...

... ABSTRACT: This paper focuses on the characterization of the fracture performance of X100 material in transition temperature region using both experimental and numerical methods. The ductile fracture has been analyzed using tests on round notched bar specimens and standard fracture mechanics...

..., a probabilistic framework is believed to be most appropriate for modeling spalling fracture. In the present analysis a probabilistic fracture mechanics model has been used to illustrate the link between probabilistic aspects of fracture and the observed scale effect for compressive ice failure, whereby pressure...